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https://issues.apache.org/jira/browse/HBASE-29795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18047652#comment-18047652
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Duo Zhang commented on HBASE-29795:
-----------------------------------
And seems we never remove the cf names from the pool?
> RegionServer abort because of NPE when closing compacted store file
> -------------------------------------------------------------------
>
> Key: HBASE-29795
> URL: https://issues.apache.org/jira/browse/HBASE-29795
> Project: HBase
> Issue Type: Bug
> Components: Compaction, regionserver
> Reporter: Duo Zhang
> Priority: Major
>
> {noformat}
> 2025-12-26T13:19:02,668 ERROR
> [RS_COMPACTED_FILES_DISCHARGER-regionserver/data01:16020-5]
> regionserver.HStore: Exception while trying to close the compacted store file
> hdfs://home/hbase/data/default/IntegrationTestBigLinkedList/e6d76396ff294910dc1f1af9e0169ec2/meta/9d8d39b8b9cd4f0993331ee8338dd4c2.a412dc08f446a90220a53b2052d5fa84
> java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because
> the return value of
> "org.apache.hadoop.hbase.io.hfile.BlockCacheKey.getHfileName()" is null
> at
> org.apache.hadoop.hbase.io.hfile.LruBlockCache.evictBlocksByHfileName(LruBlockCache.java:581)
> at
> org.apache.hadoop.hbase.io.hfile.CombinedBlockCache.evictBlocksByHfileName(CombinedBlockCache.java:159)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.lambda$close$0(HalfStoreFileReader.java:372)
> at java.base/java.util.Optional.ifPresent(Optional.java:178)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.close(HalfStoreFileReader.java:368)
> at
> org.apache.hadoop.hbase.regionserver.HStore.removeCompactedfiles(HStore.java:2306)
> at
> org.apache.hadoop.hbase.regionserver.HStore.closeAndArchiveCompactedFiles(HStore.java:2268)
> at
> org.apache.hadoop.hbase.regionserver.CompactedHFilesDischargeHandler.process(CompactedHFilesDischargeHandler.java:41)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> at java.base/java.lang.Thread.run(Thread.java:840)
> 2025-12-26T13:19:02,672 ERROR
> [RS_COMPACTED_FILES_DISCHARGER-regionserver/data01:16020-5]
> regionserver.HStore: Exception while trying to close the compacted store file
> hdfs://home/hbase/data/default/IntegrationTestBigLinkedList/e6d76396ff294910dc1f1af9e0169ec2/meta/b1008c759d3340008b73b977a632f195.a412dc08f446a90220a53b2052d5fa84
> java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because
> the return value of
> "org.apache.hadoop.hbase.io.hfile.BlockCacheKey.getHfileName()" is null
> at
> org.apache.hadoop.hbase.io.hfile.LruBlockCache.evictBlocksByHfileName(LruBlockCache.java:581)
> at
> org.apache.hadoop.hbase.io.hfile.CombinedBlockCache.evictBlocksByHfileName(CombinedBlockCache.java:159)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.lambda$close$0(HalfStoreFileReader.java:372)
> at java.base/java.util.Optional.ifPresent(Optional.java:178)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.close(HalfStoreFileReader.java:368)
> at
> org.apache.hadoop.hbase.regionserver.HStore.removeCompactedfiles(HStore.java:2306)
> at
> org.apache.hadoop.hbase.regionserver.HStore.closeAndArchiveCompactedFiles(HStore.java:2268)
> at
> org.apache.hadoop.hbase.regionserver.CompactedHFilesDischargeHandler.process(CompactedHFilesDischargeHandler.java:41)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> at java.base/java.lang.Thread.run(Thread.java:840)
> 2025-12-26T13:19:02,678 ERROR
> [RS_COMPACTED_FILES_DISCHARGER-regionserver/data01:16020-5]
> regionserver.HStore: Exception while trying to close the compacted store file
> hdfs://home/hbase/data/default/IntegrationTestBigLinkedList/e6d76396ff294910dc1f1af9e0169ec2/meta/0a82a3668506437494809649b49bad8e.a412dc08f446a90220a53b2052d5fa84
> java.lang.NullPointerException: Cannot invoke "String.equals(Object)" because
> the return value of
> "org.apache.hadoop.hbase.io.hfile.BlockCacheKey.getHfileName()" is null
> at
> org.apache.hadoop.hbase.io.hfile.LruBlockCache.evictBlocksByHfileName(LruBlockCache.java:581)
> at
> org.apache.hadoop.hbase.io.hfile.CombinedBlockCache.evictBlocksByHfileName(CombinedBlockCache.java:159)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.lambda$close$0(HalfStoreFileReader.java:372)
> at java.base/java.util.Optional.ifPresent(Optional.java:178)
> at
> org.apache.hadoop.hbase.io.HalfStoreFileReader.close(HalfStoreFileReader.java:368)
> at
> org.apache.hadoop.hbase.regionserver.HStore.removeCompactedfiles(HStore.java:2306)
> at
> org.apache.hadoop.hbase.regionserver.HStore.closeAndArchiveCompactedFiles(HStore.java:2268)
> at
> org.apache.hadoop.hbase.regionserver.CompactedHFilesDischargeHandler.process(CompactedHFilesDischargeHandler.java:41)
> at
> org.apache.hadoop.hbase.executor.EventHandler.run(EventHandler.java:104)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> at java.base/java.lang.Thread.run(Thread.java:840)
> {noformat}
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