grpc-js: Include library version and PID in all trace logs

doc/environment_variables.md

@@ -42,7 +42,6 @@ can be set.
   - `subchannel_internals` - Traces HTTP/2 session state. Includes per-call logs.
   - `channel_stacktrace` - Traces channel construction events with stack traces.
   - `keepalive` - Traces gRPC keepalive pings
-  - `index` - Traces module loading
   - `outlier_detection` - Traces outlier detection events
 
   The following tracers are added by the `@grpc/grpc-js-xds` library:
@@ -62,4 +61,4 @@ can be set.
   - DEBUG - log all gRPC messages
   - INFO - log INFO and ERROR message
   - ERROR - log only errors (default)
-  - NONE - won't log any
+  - NONE - won't log any

packages/grpc-js/src/index.ts

@@ -273,14 +273,7 @@ import * as load_balancer_outlier_detection from './load-balancer-outlier-detect
 import * as channelz from './channelz';
 import { Deadline } from './deadline';
 
-const clientVersion = require('../../package.json').version;
-
 (() => {
-  logging.trace(
-    LogVerbosity.DEBUG,
-    'index',
-    'Loading @grpc/grpc-js version ' + clientVersion
-  );
   resolver_dns.setup();
   resolver_uds.setup();
   resolver_ip.setup();

packages/grpc-js/src/logging.ts

@@ -16,6 +16,9 @@
  */
 
 import { LogVerbosity } from './constants';
+import { pid } from 'process';
+
+const clientVersion = require('../../package.json').version;
 
 const DEFAULT_LOGGER: Partial<Console> = {
   error: (message?: any, ...optionalParams: any[]) => {
@@ -109,7 +112,7 @@ export function trace(
   text: string
 ): void {
   if (isTracerEnabled(tracer)) {
-    log(severity, new Date().toISOString() + ' | ' + tracer + ' | ' + text);
+    log(severity, new Date().toISOString() + ' | v' + clientVersion + ' ' + pid + ' | ' + tracer + ' | ' + text);
   }
 }