Merge pull request #683 from near/feat/lower-max-use

feat: logging & connection params

package.json

@@ -32,6 +32,7 @@
     "bluebird": "^3.7.2",
     "bn.js": "5.1.0",
     "bs58": "^4.0.1",
+    "bunyan": "^1.8.15",
     "dataloader": "^2.0.0",
     "debug": "^4.3.1",
     "dynamodb": "1.3.0",

src/middleware/indexer.js

@@ -1,5 +1,6 @@
 const { Pool } = require('pg');
 const Cache = require('node-cache');
+const bunyan = require('bunyan');
 
 const {
     BRIDGE_TOKEN_FACTORY_ACCOUNT_ID = 'factory.bridge.near',
@@ -10,9 +11,30 @@ const {
 
 const replicaConnections = JSON.parse(INDEXER_DB_REPLICAS);
 const indexerConnection = replicaConnections[(new Date()).valueOf() % replicaConnections.length];
-const pool = new Pool({ connectionString: indexerConnection, maxUses: 1000 });
+const pool = new Pool({ connectionString: indexerConnection, maxUses: 100 });
+
+
+let logger;
+try {
+    logger = bunyan.createLogger({ name: 'indexer-logger' });
+} catch {
+    // not empty
+}
+
+pool.on('connect', () => {
+    try {
+        logger.info({ msg: 'connected' });
+    } catch {
+        // not empty
+    }
+});
 
 pool.on('error', (err) => {
+    try {
+        logger.error(err);
+    } catch {
+        // not empty
+    }
     console.error('Postgres pool error: ', err);
 });
 

yarn.lock

@@ -1003,7 +1003,7 @@ buffer@^5.5.0:
     base64-js "^1.3.1"
     ieee754 "^1.1.13"
 
-bunyan@^1.8.14, bunyan@~1.8.12:
+bunyan@^1.8.14, bunyan@^1.8.15, bunyan@~1.8.12:
   version "1.8.15"
   resolved "https://registry.yarnpkg.com/bunyan/-/bunyan-1.8.15.tgz#8ce34ca908a17d0776576ca1b2f6cbd916e93b46"
   integrity sha512-0tECWShh6wUysgucJcBAoYegf3JJoZWibxdqhTm7OHPeT42qdjkZ29QCMcKwbgU1kiH+auSIasNRXMLWXafXig==