ptlrs commented on code in PR #10133:
URL: https://github.com/apache/ozone/pull/10133#discussion_r3352622504
##########
hadoop-ozone/recon/src/main/java/org/apache/hadoop/ozone/recon/spi/impl/OzoneManagerServiceProviderImpl.java:
##########
@@ -229,7 +229,7 @@ public OzoneManagerServiceProviderImpl(
new ThreadFactoryBuilder().setNameFormat(threadNamePrefix +
"SyncOM-%d")
.build();
// Number of parallel workers
- int omDBTarProcessorThreadCount = Math.max(64,
Runtime.getRuntime().availableProcessors());
+ int omDBTarProcessorThreadCount = Math.min(64,
Runtime.getRuntime().availableProcessors());
Review Comment:
We want at most 64 threads.
Previously, due to the way the threadpool was configured, we were
effectively using a single threadpool executor. `omDBTarProcessorThreadCount`
was used as `threadPoolSize`.
```java
this.executor =
new ThreadPoolExecutor(0, threadPoolSize, 60L, TimeUnit.SECONDS,
new LinkedBlockingQueue<>(), threadFactory);
```
Now that the bug has been fixed and the new executors are going to be
actually multithreaded, we are deciding to cap the number of threads to 64.
See previous discussion in
https://github.com/apache/ozone/pull/10133#discussion_r3151790350
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