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https://issues.apache.org/jira/browse/HDFS-14367?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena updated HDFS-14367:
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Summary: EC: Parameter maxPoolSize in striped reconstruct thread pool isn't
affecting number of threads (was: Useless parameter maxPoolSize in striped
reconstruct thread pool)
> EC: Parameter maxPoolSize in striped reconstruct thread pool isn't affecting
> number of threads
> ----------------------------------------------------------------------------------------------
>
> Key: HDFS-14367
> URL: https://issues.apache.org/jira/browse/HDFS-14367
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: ec
> Affects Versions: 3.3.0
> Reporter: Guo Lei
> Assignee: Guo Lei
> Priority: Major
> Attachments: HDFS-14367.001.patch
>
>
> The workQueue length wasn't specified, so the thread number never be increase.
> The thread number increase to maximumPoolSize only when the workQueue is full.
> file location:
> org/apache/hadoop/hdfs/server/datanode/erasurecode/ErasureCodingWorker.java
> private void initializeStripedBlkReconstructionThreadPool(int numThreads) {
> LOG.debug("Using striped block reconstruction; pool threads={}",
> numThreads);
> stripedReconstructionPool = DFSUtilClient.getThreadPoolExecutor(2,
> {color:#ff0000}numThreads{color}, 60, {color:#ff0000}new
> LinkedBlockingQueue<>(){color},
> "StripedBlockReconstruction-", false);
> stripedReconstructionPool.allowCoreThreadTimeOut(true);
> }
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