J-HowHuang commented on code in PR #17623:
URL: https://github.com/apache/pinot/pull/17623#discussion_r2796016817
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pinot-server/src/main/java/org/apache/pinot/server/starter/helix/BaseServerStarter.java:
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@@ -300,7 +300,7 @@ public void init(PinotConfiguration serverConf)
* Override to provide custom transition thread pool manager
*/
protected void initTransitionThreadPoolManager() {
- _transitionThreadPoolManager = null;
+ _transitionThreadPoolManager = new
DefaultStateTransitionThreadPoolManager();
Review Comment:
Added in the PR description
## Configuration Change
**New Config:** `pinot.server.instance.stateTransitionThreadPoolSize`
(default: `40`)
**Migration:** Previously configured via Helix ZK at
`CONFIGS/PARTICIPANT/<instance>` or `CONFIGS/CLUSTER/<cluster>` using key
`STATE_TRANSITION.maxThreads`. This is now a Pinot server config.
**Action Required:** Only if you customized `STATE_TRANSITION.maxThreads`
in ZK - add `pinot.server.instance.stateTransitionThreadPoolSize=<your-value>`
to server config. Otherwise, default of 40 maintains existing behavior.
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