kopia lustrzana https://github.com/bugout-dev/moonstream
Removed status url, config is json, instead of status call latest
rodzic
cc0b25bf03
commit
1b2f60d97c
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@ -4,17 +4,17 @@ Load balancer, based on https://github.com/kasvith/simplelb/
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package main
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"net/http/httputil"
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"net/url"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
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)
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// Main variable of pool of blockchains which contains pool of nodes
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@ -23,10 +23,9 @@ var blockchainPool BlockchainPool
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// Node structure with
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// StatusURL for status server at node endpoint
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// GethURL for geth/bor/etc node http.server endpoint
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// Endpoint for geth/bor/etc node http.server endpoint
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type Node struct {
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StatusURL *url.URL
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GethURL *url.URL
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Endpoint *url.URL
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Alive bool
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CurrentBlock uint64
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@ -49,8 +48,13 @@ type BlockchainPool struct {
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Blockchains []*NodePool
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}
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// Node status response struct for HealthCheck
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type NodeStatusResultResponse struct {
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Number string `json:"number"`
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}
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type NodeStatusResponse struct {
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CurrentBlock uint64 `json:"current_block"`
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Result NodeStatusResultResponse `json:"result"`
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}
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// AddNode to the nodes pool
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@ -153,11 +157,11 @@ func (bpool *BlockchainPool) GetNextNode(blockchain string) *Node {
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return nil
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}
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// SetNodeStatus changes a status of a node by StatusURL or GethURL
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// SetNodeStatus modify status of the node
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func (bpool *BlockchainPool) SetNodeStatus(url *url.URL, alive bool) {
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for _, b := range bpool.Blockchains {
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for _, n := range b.Nodes {
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if n.StatusURL.String() == url.String() || n.GethURL.String() == url.String() {
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if n.Endpoint.String() == url.String() {
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n.SetAlive(alive)
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break
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}
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@ -165,55 +169,77 @@ func (bpool *BlockchainPool) SetNodeStatus(url *url.URL, alive bool) {
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}
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}
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// StatusLog logs nodes statuses
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// StatusLog logs node status
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// TODO(kompotkot): Print list of alive and dead nodes
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func (bpool *BlockchainPool) StatusLog() {
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for _, b := range bpool.Blockchains {
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for _, n := range b.Nodes {
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log.Printf(
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"Blockchain %s node %s is alive %t. Blockchain called %d times",
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b.Blockchain, n.StatusURL, n.Alive, b.Current,
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b.Blockchain, n.Endpoint.Host, n.Alive, b.Current,
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)
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}
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}
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}
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// HealthCheck fetch the node status and current block server
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// HealthCheck fetch the node latest block
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func (bpool *BlockchainPool) HealthCheck() {
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for _, b := range bpool.Blockchains {
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for _, n := range b.Nodes {
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n.SetAlive(false)
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n.SetCurrentBlock(0)
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// Get response from node /ping endpoint
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httpClient := http.Client{Timeout: configs.NB_HEALTH_CHECK_CALL_TIMEOUT}
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resp, err := httpClient.Get(fmt.Sprintf("%s/status", n.StatusURL))
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httpClient := http.Client{Timeout: NB_HEALTH_CHECK_CALL_TIMEOUT}
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resp, err := httpClient.Post(
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n.Endpoint.String(),
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"application/json",
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bytes.NewBuffer([]byte(`{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["latest", false],"id":1}`)),
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)
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if err != nil {
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log.Printf("Unable to reach node: %s\n", n.StatusURL)
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n.SetAlive(false)
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n.SetCurrentBlock(0)
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log.Printf("Unable to reach node: %s", n.Endpoint.Host)
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continue
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}
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defer resp.Body.Close()
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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log.Printf("Unable to parse response from node: %s\n", n.StatusURL)
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n.SetAlive(false)
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n.SetCurrentBlock(0)
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log.Printf("Unable to parse response from %s node, err %v", n.Endpoint.Host, err)
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continue
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}
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var statusResponse NodeStatusResponse
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err = json.Unmarshal(body, &statusResponse)
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if err != nil {
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log.Printf("Unable to read json response from node: %s\n", n.StatusURL)
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n.SetAlive(false)
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n.SetCurrentBlock(0)
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log.Printf("Unable to read json response from %s node, err: %v", n.Endpoint.Host, err)
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continue
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}
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blockNumberHex := strings.Replace(statusResponse.Result.Number, "0x", "", -1)
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blockNumber, err := strconv.ParseUint(blockNumberHex, 16, 64)
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if err != nil {
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n.SetAlive(false)
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n.SetCurrentBlock(0)
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log.Printf("Unable to parse block number from hex to string, err: %v", err)
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continue
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}
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// Mark node in list of nodes as alive or not and update current block
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n.SetAlive(true)
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if statusResponse.CurrentBlock != 0 {
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n.SetCurrentBlock(statusResponse.CurrentBlock)
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var alive bool
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if blockNumber != 0 {
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alive = true
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} else {
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alive = false
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}
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n.SetAlive(alive)
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n.SetCurrentBlock(blockNumber)
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log.Printf("Node %s is alive: %t with current block: %d blockchain called: %d times\n", n.StatusURL, true, statusResponse.CurrentBlock, b.Current)
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log.Printf(
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"Node %s is alive: %t with current block: %d blockchain called: %d times",
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n.Endpoint.Host, alive, blockNumber, b.Current,
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)
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}
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}
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}
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@ -1,17 +1,6 @@
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package main
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import (
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"io/ioutil"
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"log"
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"strconv"
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"strings"
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configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
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)
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var (
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nodeConfigs NodeConfigs
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ALLOWED_METHODS = map[string]bool{
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"eth_blockNumber": true,
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"eth_call": true,
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@ -57,49 +46,8 @@ type JSONRPCRequest struct {
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ID uint64 `json:"id"`
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}
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// Node conf
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type BlockchainConfig struct {
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Blockchain string
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IPs []string
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Port string
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}
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type NodeConfig struct {
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Blockchain string
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Addr string
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Port uint16
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}
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type NodeConfigs struct {
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NodeConfigs []NodeConfig
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}
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// Return list of NodeConfig structures
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func (nc *NodeConfigs) InitNodeConfigList(configPath string) {
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configs.CheckEnvVarSet()
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rawBytes, err := ioutil.ReadFile(configPath)
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if err != nil {
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log.Fatalf("Unable to read config file, %v", err)
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}
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text := string(rawBytes)
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lines := strings.Split(text, "\n")
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// Define available blockchain nodes
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for _, line := range lines {
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fields := strings.Split(line, ",")
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if len(fields) == 3 {
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port, err := strconv.ParseInt(fields[2], 0, 16)
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if err != nil {
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log.Printf("Unable to parse port number, %v", err)
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continue
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}
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nc.NodeConfigs = append(nc.NodeConfigs, NodeConfig{
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Blockchain: fields[0],
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Addr: fields[1],
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Port: uint16(port),
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})
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}
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}
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}
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@ -4,13 +4,12 @@ import (
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"encoding/json"
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"flag"
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"fmt"
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"log"
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"os"
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"strings"
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bugout "github.com/bugout-dev/bugout-go/pkg"
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"github.com/google/uuid"
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"github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
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)
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var (
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@ -138,9 +137,20 @@ func (s *StateCLI) checkRequirements() {
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}
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}
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config := configs.GetConfigPath(s.configPathFlag)
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if !configs.CheckPathExists(config.ConfigPath) {
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configs.GenerateDefaultConfig(config)
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// Load configuration
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config, err := GetConfigPath(s.configPathFlag)
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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if !config.ConfigExists {
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if err := GenerateDefaultConfig(config); err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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} else {
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log.Printf("Loaded configuration from %s", config.ConfigPath)
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}
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s.configPathFlag = config.ConfigPath
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}
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@ -183,7 +193,7 @@ func (s *StateCLI) populateCLI() {
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s.usersCmd.IntVar(&s.offsetFlag, "offset", 0, "Result output offset")
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}
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func CLI() {
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func cli() {
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stateCLI.populateCLI()
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if len(os.Args) < 2 {
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stateCLI.usage()
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@ -193,7 +203,7 @@ func CLI() {
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// Init bugout client
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bc, err := bugout.ClientFromEnv()
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if err != nil {
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fmt.Printf("Unable to initialize bugout client %v", err)
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fmt.Printf("Unable to initialize bugout client, err: %v\n", err)
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os.Exit(1)
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}
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bugoutClient = bc
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@ -213,24 +223,24 @@ func CLI() {
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ExtendedMethods: stateCLI.extendedMethodsFlag,
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}
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_, err := bugoutClient.Brood.FindUser(
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configs.NB_CONTROLLER_TOKEN,
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NB_CONTROLLER_TOKEN,
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map[string]string{
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"user_id": proposedUserAccess.UserID,
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"application_id": configs.NB_APPLICATION_ID,
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"application_id": NB_APPLICATION_ID,
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},
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)
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if err != nil {
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fmt.Printf("User does not exists %v\n", err)
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fmt.Printf("User does not exists, err: %v\n", err)
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os.Exit(1)
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}
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resource, err := bugoutClient.Brood.CreateResource(configs.NB_CONTROLLER_TOKEN, configs.NB_APPLICATION_ID, proposedUserAccess)
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resource, err := bugoutClient.Brood.CreateResource(NB_CONTROLLER_TOKEN, NB_APPLICATION_ID, proposedUserAccess)
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if err != nil {
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fmt.Printf("Unable to create user access %v\n", err)
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fmt.Printf("Unable to create user access, err: %v\n", err)
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os.Exit(1)
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}
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resource_data, err := json.Marshal(resource.ResourceData)
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if err != nil {
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fmt.Printf("Unable to encode resource %s data interface to json %v", resource.Id, err)
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fmt.Printf("Unable to encode resource %s data interface to json, err: %v", resource.Id, err)
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os.Exit(1)
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}
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fmt.Println(string(resource_data))
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@ -251,31 +261,31 @@ func CLI() {
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queryParameters["access_id"] = stateCLI.accessIDFlag
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}
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resources, err := bugoutClient.Brood.GetResources(
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configs.NB_CONTROLLER_TOKEN,
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configs.NB_APPLICATION_ID,
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NB_CONTROLLER_TOKEN,
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NB_APPLICATION_ID,
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queryParameters,
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)
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if err != nil {
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fmt.Printf("Unable to get Bugout resources %v\n", err)
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fmt.Printf("Unable to get Bugout resources, err: %v\n", err)
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os.Exit(1)
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}
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var userAccesses []ClientResourceData
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for _, resource := range resources.Resources {
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deletedResource, err := bugoutClient.Brood.DeleteResource(configs.NB_CONTROLLER_TOKEN, resource.Id)
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deletedResource, err := bugoutClient.Brood.DeleteResource(NB_CONTROLLER_TOKEN, resource.Id)
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if err != nil {
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fmt.Printf("Unable to delete resource %s %v\n", resource.Id, err)
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fmt.Printf("Unable to delete resource %s, err: %v\n", resource.Id, err)
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continue
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}
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resource_data, err := json.Marshal(deletedResource.ResourceData)
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if err != nil {
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fmt.Printf("Unable to encode resource %s data interface to json %v", resource.Id, err)
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fmt.Printf("Unable to encode resource %s data interface to json, err: %v\n", resource.Id, err)
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continue
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}
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var userAccess ClientResourceData
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err = json.Unmarshal(resource_data, &userAccess)
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if err != nil {
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fmt.Printf("Unable to decode resource %s data json to structure %v", resource.Id, err)
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fmt.Printf("Unable to decode resource %s data json to structure, err: %v\n", resource.Id, err)
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continue
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}
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userAccesses = append(userAccesses, userAccess)
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@ -283,7 +293,7 @@ func CLI() {
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userAccessesJson, err := json.Marshal(userAccesses)
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if err != nil {
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fmt.Printf("Unable to marshal user access struct %v\n", err)
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fmt.Printf("Unable to marshal user access struct, err: %v\n", err)
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os.Exit(1)
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}
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fmt.Println(string(userAccessesJson))
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@ -292,7 +302,7 @@ func CLI() {
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stateCLI.serverCmd.Parse(os.Args[2:])
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stateCLI.checkRequirements()
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configs.CheckEnvVarSet()
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CheckEnvVarSet()
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Server()
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@ -308,12 +318,12 @@ func CLI() {
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queryParameters["access_id"] = stateCLI.accessIDFlag
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}
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resources, err := bugoutClient.Brood.GetResources(
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configs.NB_CONTROLLER_TOKEN,
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configs.NB_APPLICATION_ID,
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NB_CONTROLLER_TOKEN,
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NB_APPLICATION_ID,
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queryParameters,
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)
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if err != nil {
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fmt.Printf("Unable to get Bugout resources %v\n", err)
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fmt.Printf("Unable to get Bugout resources, err: %v\n", err)
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os.Exit(1)
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}
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|
@ -331,20 +341,20 @@ func CLI() {
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for _, resource := range resources.Resources[offset:limit] {
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resource_data, err := json.Marshal(resource.ResourceData)
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if err != nil {
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fmt.Printf("Unable to encode resource %s data interface to json %v", resource.Id, err)
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fmt.Printf("Unable to encode resource %s data interface to json, err: %v\n", resource.Id, err)
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continue
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}
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var userAccess ClientResourceData
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err = json.Unmarshal(resource_data, &userAccess)
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if err != nil {
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fmt.Printf("Unable to decode resource %s data json to structure %v", resource.Id, err)
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fmt.Printf("Unable to decode resource %s data json to structure, err: %v\n", resource.Id, err)
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continue
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}
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userAccesses = append(userAccesses, userAccess)
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}
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userAccessesJson, err := json.Marshal(userAccesses)
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if err != nil {
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fmt.Printf("Unable to marshal user accesses struct %v\n", err)
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fmt.Printf("Unable to marshal user accesses struct, err: %v\n", err)
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os.Exit(1)
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}
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fmt.Println(string(userAccessesJson))
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|
@ -353,7 +363,7 @@ func CLI() {
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stateCLI.versionCmd.Parse(os.Args[2:])
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stateCLI.checkRequirements()
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fmt.Printf("v%s\n", configs.NB_VERSION)
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fmt.Printf("v%s\n", NB_VERSION)
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default:
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stateCLI.usage()
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|
|
|
@ -5,8 +5,6 @@ import (
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"reflect"
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"sync"
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"time"
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configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
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)
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var (
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|
@ -104,7 +102,7 @@ func (cpool *ClientPool) AddClientNode(id string, node *Node) {
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func (cpool *ClientPool) GetClientNode(id string) *Node {
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if cpool.Client[id] != nil {
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lastCallTs := cpool.Client[id].GetClientLastCallDiff()
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if lastCallTs < configs.NB_CLIENT_NODE_KEEP_ALIVE {
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if lastCallTs < NB_CLIENT_NODE_KEEP_ALIVE {
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cpool.Client[id].UpdateClientLastCall()
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return cpool.Client[id].Node
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}
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|
@ -119,7 +117,7 @@ func (cpool *ClientPool) CleanInactiveClientNodes() int {
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cnt := 0
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for id, client := range cpool.Client {
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lastCallTs := client.GetClientLastCallDiff()
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if lastCallTs >= configs.NB_CLIENT_NODE_KEEP_ALIVE {
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if lastCallTs >= NB_CLIENT_NODE_KEEP_ALIVE {
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delete(cpool.Client, id)
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} else {
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cnt += 1
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|
|
|
@ -4,8 +4,6 @@ import (
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"reflect"
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"testing"
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"time"
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|
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configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
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)
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func TestAddClientNode(t *testing.T) {
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|
@ -40,7 +38,7 @@ func TestGetClientNode(t *testing.T) {
|
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{map[string]*Client{}, "1", nil},
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{map[string]*Client{"1": {LastCallTs: ts, Node: &Node{Alive: true}}}, "1", &Node{Alive: true}},
|
||||
{map[string]*Client{"2": {LastCallTs: ts, Node: &Node{Alive: true}}}, "1", nil},
|
||||
{map[string]*Client{"1": {LastCallTs: ts - configs.NB_CLIENT_NODE_KEEP_ALIVE, Node: &Node{Alive: true}}}, "1", nil},
|
||||
{map[string]*Client{"1": {LastCallTs: ts - NB_CLIENT_NODE_KEEP_ALIVE, Node: &Node{Alive: true}}}, "1", nil},
|
||||
}
|
||||
for _, c := range cases {
|
||||
CreateClientPools()
|
||||
|
@ -63,11 +61,11 @@ func TestCleanInactiveClientNodes(t *testing.T) {
|
|||
clients map[string]*Client
|
||||
expected string
|
||||
}{
|
||||
{map[string]*Client{"1": {LastCallTs: ts - configs.NB_CLIENT_NODE_KEEP_ALIVE}}, ""},
|
||||
{map[string]*Client{"1": {LastCallTs: ts - NB_CLIENT_NODE_KEEP_ALIVE}}, ""},
|
||||
{map[string]*Client{"1": {LastCallTs: ts}}, "1"},
|
||||
{map[string]*Client{
|
||||
"1": {LastCallTs: ts - configs.NB_CLIENT_NODE_KEEP_ALIVE},
|
||||
"2": {LastCallTs: ts - configs.NB_CLIENT_NODE_KEEP_ALIVE - 10},
|
||||
"1": {LastCallTs: ts - NB_CLIENT_NODE_KEEP_ALIVE},
|
||||
"2": {LastCallTs: ts - NB_CLIENT_NODE_KEEP_ALIVE - 10},
|
||||
"3": {LastCallTs: ts},
|
||||
}, "3"},
|
||||
}
|
||||
|
|
|
@ -1,10 +1,12 @@
|
|||
/*
|
||||
Configurations for load balancer server.
|
||||
*/
|
||||
package configs
|
||||
package main
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
@ -43,8 +45,6 @@ var (
|
|||
MOONSTREAM_DB_CONN_MAX_LIFETIME = 30 * time.Minute
|
||||
)
|
||||
|
||||
var MOONSTREAM_NODES_SERVER_PORT = os.Getenv("MOONSTREAM_NODES_SERVER_PORT")
|
||||
|
||||
func CheckEnvVarSet() {
|
||||
if NB_ACCESS_ID_HEADER == "" {
|
||||
NB_ACCESS_ID_HEADER = "x-node-balancer-access-id"
|
||||
|
@ -52,14 +52,31 @@ func CheckEnvVarSet() {
|
|||
if NB_DATA_SOURCE_HEADER == "" {
|
||||
NB_DATA_SOURCE_HEADER = "x-node-balancer-data-source"
|
||||
}
|
||||
|
||||
if MOONSTREAM_NODES_SERVER_PORT == "" {
|
||||
fmt.Println("Environment variable MOONSTREAM_NODES_SERVER_PORT not set")
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
type Config struct {
|
||||
// Nodes configuration
|
||||
type NodeConfig struct {
|
||||
Blockchain string `json:"blockchain"`
|
||||
Endpoint string `json:"endpoint"`
|
||||
|
||||
Internal bool `json:"internal"`
|
||||
}
|
||||
|
||||
func LoadConfig(configPath string) (*[]NodeConfig, error) {
|
||||
rawBytes, err := ioutil.ReadFile(configPath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
nodeConfigs := &[]NodeConfig{}
|
||||
err = json.Unmarshal(rawBytes, nodeConfigs)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return nodeConfigs, nil
|
||||
}
|
||||
|
||||
type ConfigPlacement struct {
|
||||
ConfigDirPath string
|
||||
ConfigDirExists bool
|
||||
|
||||
|
@ -67,28 +84,26 @@ type Config struct {
|
|||
ConfigExists bool
|
||||
}
|
||||
|
||||
func CheckPathExists(path string) bool {
|
||||
func CheckPathExists(path string) (bool, error) {
|
||||
var exists = true
|
||||
_, err := os.Stat(path)
|
||||
if err != nil {
|
||||
if os.IsNotExist(err) {
|
||||
exists = false
|
||||
} else {
|
||||
fmt.Println(err)
|
||||
os.Exit(1)
|
||||
return exists, fmt.Errorf("Error due checking file path exists, err: %v", err)
|
||||
}
|
||||
}
|
||||
|
||||
return exists
|
||||
return exists, nil
|
||||
}
|
||||
|
||||
func GetConfigPath(providedPath string) *Config {
|
||||
func GetConfigPath(providedPath string) (*ConfigPlacement, error) {
|
||||
var configDirPath, configPath string
|
||||
if providedPath == "" {
|
||||
homeDir, err := os.UserHomeDir()
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to find user home directory, %v", err)
|
||||
os.Exit(1)
|
||||
return nil, fmt.Errorf("Unable to find user home directory, %v", err)
|
||||
}
|
||||
configDirPath = fmt.Sprintf("%s/.nodebalancer", homeDir)
|
||||
configPath = fmt.Sprintf("%s/config.txt", configDirPath)
|
||||
|
@ -97,35 +112,48 @@ func GetConfigPath(providedPath string) *Config {
|
|||
configDirPath = filepath.Dir(configPath)
|
||||
}
|
||||
|
||||
defaultConfig := &Config{
|
||||
ConfigDirPath: configDirPath,
|
||||
ConfigDirExists: CheckPathExists(configDirPath),
|
||||
|
||||
ConfigPath: configPath,
|
||||
ConfigExists: CheckPathExists(configPath),
|
||||
configDirPathExists, err := CheckPathExists(configDirPath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
configPathExists, err := CheckPathExists(configPath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return defaultConfig
|
||||
config := &ConfigPlacement{
|
||||
ConfigDirPath: configDirPath,
|
||||
ConfigDirExists: configDirPathExists,
|
||||
|
||||
ConfigPath: configPath,
|
||||
ConfigExists: configPathExists,
|
||||
}
|
||||
|
||||
return config, nil
|
||||
}
|
||||
|
||||
func GenerateDefaultConfig(config *Config) string {
|
||||
func GenerateDefaultConfig(config *ConfigPlacement) error {
|
||||
if !config.ConfigDirExists {
|
||||
if err := os.MkdirAll(config.ConfigDirPath, os.ModePerm); err != nil {
|
||||
fmt.Printf("Unable to create directory, %v", err)
|
||||
os.Exit(1)
|
||||
return fmt.Errorf("Unable to create directory, %v", err)
|
||||
}
|
||||
log.Printf("Config directory created at: %s", config.ConfigDirPath)
|
||||
}
|
||||
|
||||
if !config.ConfigExists {
|
||||
tempConfigB := []byte("ethereum,127.0.0.1,8545")
|
||||
err := os.WriteFile(config.ConfigPath, tempConfigB, 0644)
|
||||
tempConfig := []NodeConfig{
|
||||
{Blockchain: "ethereum", Endpoint: "http://127.0.0.1:8545", Internal: true},
|
||||
}
|
||||
tempConfigJson, err := json.Marshal(tempConfig)
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to create temp config file, %v", err)
|
||||
os.Exit(1)
|
||||
return fmt.Errorf("Unable to marshal configuration data, err: %v", err)
|
||||
}
|
||||
err = ioutil.WriteFile(config.ConfigPath, tempConfigJson, os.ModePerm)
|
||||
if err != nil {
|
||||
return fmt.Errorf("Unable to write default config to file %s, err: %v", config.ConfigPath, err)
|
||||
}
|
||||
log.Printf("Created default configuration at %s", config.ConfigPath)
|
||||
}
|
||||
|
||||
return config.ConfigPath
|
||||
return nil
|
||||
}
|
|
@ -4,8 +4,6 @@ import (
|
|||
"database/sql"
|
||||
"fmt"
|
||||
|
||||
configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
|
||||
|
||||
_ "github.com/lib/pq"
|
||||
)
|
||||
|
||||
|
@ -19,18 +17,18 @@ type DatabaseClient struct {
|
|||
|
||||
// Establish connection with database
|
||||
func InitDatabaseClient() error {
|
||||
db, err := sql.Open("postgres", configs.MOONSTREAM_DB_URI_READ_ONLY)
|
||||
db, err := sql.Open("postgres", MOONSTREAM_DB_URI_READ_ONLY)
|
||||
if err != nil {
|
||||
return fmt.Errorf("DSN parse error or another database initialization error: %v", err)
|
||||
}
|
||||
|
||||
// Set the maximum number of concurrently idle connections,
|
||||
// by default sql.DB allows a maximum of 2 idle connections.
|
||||
db.SetMaxIdleConns(configs.MOONSTREAM_DB_MAX_IDLE_CONNS)
|
||||
db.SetMaxIdleConns(MOONSTREAM_DB_MAX_IDLE_CONNS)
|
||||
|
||||
// Set the maximum lifetime of a connection.
|
||||
// Longer lifetime increase memory usage.
|
||||
db.SetConnMaxLifetime(configs.MOONSTREAM_DB_CONN_MAX_LIFETIME)
|
||||
db.SetConnMaxLifetime(MOONSTREAM_DB_CONN_MAX_LIFETIME)
|
||||
|
||||
databaseClient = DatabaseClient{
|
||||
Client: db,
|
||||
|
|
|
@ -1,5 +1,5 @@
|
|||
package main
|
||||
|
||||
func main() {
|
||||
CLI()
|
||||
cli()
|
||||
}
|
||||
|
|
|
@ -16,8 +16,6 @@ import (
|
|||
"sync"
|
||||
"time"
|
||||
|
||||
"github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
|
||||
|
||||
humbug "github.com/bugout-dev/humbug/go/pkg"
|
||||
)
|
||||
|
||||
|
@ -89,7 +87,7 @@ func (ac *AccessCache) Cleanup() (int64, int64) {
|
|||
tsNow := time.Now().Unix()
|
||||
ac.mux.Lock()
|
||||
for aId, aData := range ac.accessIds {
|
||||
if tsNow-aData.LastAccessTs > configs.NB_CACHE_ACCESS_ID_LIFETIME {
|
||||
if tsNow-aData.LastAccessTs > NB_CACHE_ACCESS_ID_LIFETIME {
|
||||
delete(ac.accessIds, aId)
|
||||
removedAccessIds++
|
||||
} else {
|
||||
|
@ -101,7 +99,7 @@ func (ac *AccessCache) Cleanup() (int64, int64) {
|
|||
}
|
||||
|
||||
func initCacheCleaning(debug bool) {
|
||||
t := time.NewTicker(configs.NB_CACHE_CLEANING_INTERVAL)
|
||||
t := time.NewTicker(NB_CACHE_CLEANING_INTERVAL)
|
||||
for {
|
||||
select {
|
||||
case <-t.C:
|
||||
|
@ -118,7 +116,7 @@ func initCacheCleaning(debug bool) {
|
|||
func extractAccessID(r *http.Request) string {
|
||||
var accessID string
|
||||
|
||||
accessIDHeaders := r.Header[strings.Title(configs.NB_ACCESS_ID_HEADER)]
|
||||
accessIDHeaders := r.Header[strings.Title(NB_ACCESS_ID_HEADER)]
|
||||
for _, h := range accessIDHeaders {
|
||||
accessID = h
|
||||
}
|
||||
|
@ -137,7 +135,7 @@ func extractAccessID(r *http.Request) string {
|
|||
func extractDataSource(r *http.Request) string {
|
||||
dataSource := "database"
|
||||
|
||||
dataSources := r.Header[strings.Title(configs.NB_DATA_SOURCE_HEADER)]
|
||||
dataSources := r.Header[strings.Title(NB_DATA_SOURCE_HEADER)]
|
||||
for _, h := range dataSources {
|
||||
dataSource = h
|
||||
}
|
||||
|
@ -203,7 +201,7 @@ func logMiddleware(next http.Handler) http.Handler {
|
|||
var jsonrpcRequest JSONRPCRequest
|
||||
err = json.Unmarshal(body, &jsonrpcRequest)
|
||||
if err != nil {
|
||||
log.Printf("Unable to parse body %v", err)
|
||||
log.Printf("Unable to parse body, err: %v", err)
|
||||
}
|
||||
logStr += fmt.Sprintf(" %s", jsonrpcRequest.Method)
|
||||
}
|
||||
|
@ -236,7 +234,7 @@ func accessMiddleware(next http.Handler) http.Handler {
|
|||
}
|
||||
|
||||
// If access id does not belong to internal crawlers, then check cache or find it in Bugout resources
|
||||
if accessID == configs.NB_CONTROLLER_ACCESS_ID {
|
||||
if accessID == NB_CONTROLLER_ACCESS_ID {
|
||||
if stateCLI.enableDebugFlag {
|
||||
log.Printf("Access id belongs to internal crawlers")
|
||||
}
|
||||
|
@ -254,8 +252,8 @@ func accessMiddleware(next http.Handler) http.Handler {
|
|||
log.Printf("New access id, looking at Brood resources")
|
||||
}
|
||||
resources, err := bugoutClient.Brood.GetResources(
|
||||
configs.NB_CONTROLLER_TOKEN,
|
||||
configs.NB_APPLICATION_ID,
|
||||
NB_CONTROLLER_TOKEN,
|
||||
NB_APPLICATION_ID,
|
||||
map[string]string{"access_id": accessID},
|
||||
)
|
||||
if err != nil {
|
||||
|
|
|
@ -12,8 +12,6 @@ import (
|
|||
"net/http"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
|
||||
)
|
||||
|
||||
type PingResponse struct {
|
||||
|
@ -42,8 +40,8 @@ func lbHandler(w http.ResponseWriter, r *http.Request) {
|
|||
}
|
||||
|
||||
attempts := GetAttemptsFromContext(r)
|
||||
if attempts > configs.NB_CONNECTION_RETRIES {
|
||||
log.Printf("Max attempts reached from %s %s, terminating\n", r.RemoteAddr, r.URL.Path)
|
||||
if attempts > NB_CONNECTION_RETRIES {
|
||||
log.Printf("Max attempts reached from %s %s, terminating", r.RemoteAddr, r.URL.Path)
|
||||
http.Error(w, "Service not available", http.StatusServiceUnavailable)
|
||||
return
|
||||
}
|
||||
|
@ -147,7 +145,7 @@ func lbDatabaseHandler(w http.ResponseWriter, r *http.Request, blockchain string
|
|||
|
||||
block, err := databaseClient.GetBlock(blockchain, blockNumber)
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to get block from database %v", err)
|
||||
log.Printf("Unable to get block from database, err: %v", err)
|
||||
http.Error(w, fmt.Sprintf("no such block %v", blockNumber), http.StatusBadRequest)
|
||||
return
|
||||
}
|
||||
|
|
|
@ -14,8 +14,6 @@ import (
|
|||
"os"
|
||||
"time"
|
||||
|
||||
configs "github.com/bugout-dev/moonstream/nodes/node_balancer/configs"
|
||||
|
||||
humbug "github.com/bugout-dev/humbug/go/pkg"
|
||||
"github.com/google/uuid"
|
||||
)
|
||||
|
@ -29,7 +27,7 @@ var (
|
|||
|
||||
// initHealthCheck runs a routine for check status of the nodes every 5 seconds
|
||||
func initHealthCheck(debug bool) {
|
||||
t := time.NewTicker(configs.NB_HEALTH_CHECK_INTERVAL)
|
||||
t := time.NewTicker(NB_HEALTH_CHECK_INTERVAL)
|
||||
for {
|
||||
select {
|
||||
case <-t.C:
|
||||
|
@ -37,7 +35,7 @@ func initHealthCheck(debug bool) {
|
|||
ethereumClients := ethereumClientPool.CleanInactiveClientNodes()
|
||||
polygonClients := polygonClientPool.CleanInactiveClientNodes()
|
||||
xdaiClients := xdaiClientPool.CleanInactiveClientNodes()
|
||||
log.Printf("Active etehereum clients: %d, polygon clients: %d, xdai clients: %d\n", ethereumClients, polygonClients, xdaiClients)
|
||||
log.Printf("Active ethereum clients: %d, polygon clients: %d, xdai clients: %d", ethereumClients, polygonClients, xdaiClients)
|
||||
if debug {
|
||||
blockchainPool.StatusLog()
|
||||
}
|
||||
|
@ -71,13 +69,13 @@ func GetRetryFromContext(r *http.Request) int {
|
|||
func proxyErrorHandler(proxy *httputil.ReverseProxy, url *url.URL) {
|
||||
proxy.ErrorHandler = func(w http.ResponseWriter, r *http.Request, e error) {
|
||||
retries := GetRetryFromContext(r)
|
||||
if retries < configs.NB_CONNECTION_RETRIES {
|
||||
if retries < NB_CONNECTION_RETRIES {
|
||||
log.Printf(
|
||||
"An error occurred while proxying to %s, number of retries: %d/%d. Error: %s\n",
|
||||
url, retries+1, configs.NB_CONNECTION_RETRIES, e.Error(),
|
||||
"An error occurred while proxying to %s, number of retries: %d/%d, err: %v",
|
||||
url, retries+1, NB_CONNECTION_RETRIES, e.Error(),
|
||||
)
|
||||
select {
|
||||
case <-time.After(configs.NB_CONNECTION_RETRIES_INTERVAL):
|
||||
case <-time.After(NB_CONNECTION_RETRIES_INTERVAL):
|
||||
ctx := context.WithValue(r.Context(), Retry, retries+1)
|
||||
proxy.ServeHTTP(w, r.WithContext(ctx))
|
||||
}
|
||||
|
@ -94,7 +92,7 @@ func proxyErrorHandler(proxy *httputil.ReverseProxy, url *url.URL) {
|
|||
// If the same request routing for few attempts with different nodes, increase the count
|
||||
// of attempts and send request to next peer
|
||||
attempts := GetAttemptsFromContext(r)
|
||||
log.Printf("Attempting number: %d to fetch node %s\n", attempts, url)
|
||||
log.Printf("Attempting number: %d to fetch node %s", attempts, url)
|
||||
ctx := context.WithValue(r.Context(), Attempts, attempts+1)
|
||||
lbHandler(w, r.WithContext(ctx))
|
||||
}
|
||||
|
@ -111,36 +109,36 @@ func Server() {
|
|||
var err error
|
||||
sessionID := uuid.New().String()
|
||||
consent := humbug.CreateHumbugConsent(humbug.True)
|
||||
reporter, err = humbug.CreateHumbugReporter(consent, "moonstream-node-balancer", sessionID, configs.HUMBUG_REPORTER_NB_TOKEN)
|
||||
reporter, err = humbug.CreateHumbugReporter(consent, "moonstream-node-balancer", sessionID, HUMBUG_REPORTER_NB_TOKEN)
|
||||
if err != nil {
|
||||
fmt.Printf("Invalid Humbug Crash configuration: %v", err)
|
||||
fmt.Printf("Invalid Humbug Crash configuration, err: %v\n", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
// Record system information
|
||||
reporter.Publish(humbug.SystemReport())
|
||||
|
||||
resources, err := bugoutClient.Brood.GetResources(
|
||||
configs.NB_CONTROLLER_TOKEN,
|
||||
configs.NB_APPLICATION_ID,
|
||||
map[string]string{"access_id": configs.NB_CONTROLLER_ACCESS_ID},
|
||||
NB_CONTROLLER_TOKEN,
|
||||
NB_APPLICATION_ID,
|
||||
map[string]string{"access_id": NB_CONTROLLER_ACCESS_ID},
|
||||
)
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to get user with provided access identifier %v", err)
|
||||
fmt.Printf("Unable to get user with provided access identifier, err: %v\n", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
if len(resources.Resources) != 1 {
|
||||
fmt.Printf("User with provided access identifier has wrong number of resources %v", err)
|
||||
fmt.Printf("User with provided access identifier has wrong number of resources, err: %v\n", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
resource_data, err := json.Marshal(resources.Resources[0].ResourceData)
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to encode resource data interface to json %v", err)
|
||||
fmt.Printf("Unable to encode resource data interface to json, err: %v\n", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
var clientAccess ClientResourceData
|
||||
err = json.Unmarshal(resource_data, &clientAccess)
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to decode resource data json to structure %v", err)
|
||||
fmt.Printf("Unable to decode resource data json to structure, err: %v\n", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
internalCrawlersAccess = ClientResourceData{
|
||||
|
@ -158,43 +156,38 @@ func Server() {
|
|||
|
||||
err = InitDatabaseClient()
|
||||
if err != nil {
|
||||
log.Printf("Unable to initialize database connection %v\n", err)
|
||||
log.Printf("Unable to initialize database connection, err: %v", err)
|
||||
} else {
|
||||
log.Printf("Connection with database established\n")
|
||||
log.Printf("Connection with database established")
|
||||
}
|
||||
|
||||
// Fill NodeConfigList with initial nodes from environment variables
|
||||
nodeConfigs.InitNodeConfigList(stateCLI.configPathFlag)
|
||||
nodeConfig, err := LoadConfig(stateCLI.configPathFlag)
|
||||
if err != nil {
|
||||
fmt.Println(err)
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
// Parse nodes and set list of proxies
|
||||
for i, nodeConfig := range nodeConfigs.NodeConfigs {
|
||||
gethUrl, err := url.Parse(fmt.Sprintf("http://%s:%d", nodeConfig.Addr, nodeConfig.Port))
|
||||
for i, nodeConfig := range *nodeConfig {
|
||||
|
||||
endpoint, err := url.Parse(nodeConfig.Endpoint)
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to parse gethUrl with addr: %s and port: %d\n", nodeConfig.Addr, nodeConfig.Port)
|
||||
continue
|
||||
}
|
||||
statusUrl, err := url.Parse(fmt.Sprintf("http://%s:%s", nodeConfig.Addr, configs.MOONSTREAM_NODES_SERVER_PORT))
|
||||
if err != nil {
|
||||
fmt.Printf("Unable to parse statusUrl with addr: %s and port: %s\n", nodeConfig.Addr, configs.MOONSTREAM_NODES_SERVER_PORT)
|
||||
continue
|
||||
fmt.Println(err)
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
proxyToStatus := httputil.NewSingleHostReverseProxy(statusUrl)
|
||||
proxyToGeth := httputil.NewSingleHostReverseProxy(gethUrl)
|
||||
|
||||
proxyErrorHandler(proxyToStatus, statusUrl)
|
||||
proxyErrorHandler(proxyToGeth, gethUrl)
|
||||
proxyToEndpoint := httputil.NewSingleHostReverseProxy(endpoint)
|
||||
proxyErrorHandler(proxyToEndpoint, endpoint)
|
||||
|
||||
blockchainPool.AddNode(&Node{
|
||||
StatusURL: statusUrl,
|
||||
GethURL: gethUrl,
|
||||
Alive: true,
|
||||
StatusReverseProxy: proxyToStatus,
|
||||
GethReverseProxy: proxyToGeth,
|
||||
Endpoint: endpoint,
|
||||
Alive: true,
|
||||
GethReverseProxy: proxyToEndpoint,
|
||||
}, nodeConfig.Blockchain)
|
||||
log.Printf(
|
||||
"Added new %s proxy blockchain under index %d from config file with geth url: %s and status url: %s\n",
|
||||
nodeConfig.Blockchain, i, gethUrl, statusUrl)
|
||||
"Added new %s proxy blockchain under index %d from config file with geth url: %s://%s",
|
||||
nodeConfig.Blockchain, i, endpoint.Scheme, endpoint.Host)
|
||||
}
|
||||
|
||||
serveMux := http.NewServeMux()
|
||||
|
@ -225,10 +218,10 @@ func Server() {
|
|||
// Start access id cache cleaning
|
||||
go initCacheCleaning(stateCLI.enableDebugFlag)
|
||||
|
||||
log.Printf("Starting node load balancer HTTP server at %s:%s\n", stateCLI.listeningAddrFlag, stateCLI.listeningPortFlag)
|
||||
log.Printf("Starting node load balancer HTTP server at %s:%s", stateCLI.listeningAddrFlag, stateCLI.listeningPortFlag)
|
||||
err = server.ListenAndServe()
|
||||
if err != nil {
|
||||
fmt.Printf("Failed to start server listener %v", err)
|
||||
fmt.Printf("Failed to start server listener, err: %v\n", err)
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
|
|
@ -0,0 +1,3 @@
|
|||
package main
|
||||
|
||||
var NB_VERSION = "0.1.1"
|
|
@ -1,3 +0,0 @@
|
|||
package configs
|
||||
|
||||
var NB_VERSION = "0.1.0"
|
|
@ -4,7 +4,6 @@ export NB_APPLICATION_ID="<application_id_to_controll_access>"
|
|||
export NB_CONTROLLER_TOKEN="<token_of_controller_user>"
|
||||
export NB_CONTROLLER_ACCESS_ID="<controller_access_id_for_internal_crawlers>"
|
||||
export MOONSTREAM_DB_URI="postgresql://<username>:<password>@<db_host>:<db_port>/<db_name>"
|
||||
export MOONSTREAM_NODES_SERVER_PORT="<node_status_server_port>"
|
||||
|
||||
# Error humbug reporter
|
||||
export HUMBUG_REPORTER_NODE_BALANCER_TOKEN="<bugout_humbug_token_for_crash_reports>"
|
||||
|
|
Ładowanie…
Reference in New Issue