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https://issues.apache.org/jira/browse/HBASE-25698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17309551#comment-17309551
]
ramkrishna.s.vasudevan commented on HBASE-25698:
------------------------------------------------
This might be in the encoder flow where we might be missing something? Any
other exception before this stack trace?
> Persistent IllegalReferenceCountException at scanner open
> ---------------------------------------------------------
>
> Key: HBASE-25698
> URL: https://issues.apache.org/jira/browse/HBASE-25698
> Project: HBase
> Issue Type: Bug
> Components: HFile, Scanners
> Affects Versions: 2.4.2
> Reporter: Andrew Kyle Purtell
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.5.0, 2.4.3
>
>
> Persistent scanner open failure. Not sure how it happened. Test scenario was
> HBase 1 cluster replicating to HBase 2 cluster. ITBLL as data generator at
> source, calm policy only. Scanner open errors on sink HBase 2 cluster later
> during ITBLL verify phase. Sink schema settings bloom=ROW encoding=FAST_DIFF
> compression=NONE.
> {noformat}
> Caused by:
> org.apache.hbase.thirdparty.io.netty.util.IllegalReferenceCountException:
> refCnt: 0, decrement: 1
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.ReferenceCountUpdater.toLiveRealRefCnt(ReferenceCountUpdater.java:74)
> at
> org.apache.hbase.thirdparty.io.netty.util.internal.ReferenceCountUpdater.release(ReferenceCountUpdater.java:138)
> at
> org.apache.hbase.thirdparty.io.netty.util.AbstractReferenceCounted.release(AbstractReferenceCounted.java:76)
> at org.apache.hadoop.hbase.nio.ByteBuff.release(ByteBuff.java:79)
> at
> org.apache.hadoop.hbase.io.hfile.HFileBlock.release(HFileBlock.java:429)
> at
> org.apache.hadoop.hbase.io.hfile.CompoundBloomFilter.contains(CompoundBloomFilter.java:109)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileReader.checkGeneralBloomFilter(StoreFileReader.java:433)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileReader.passesGeneralRowBloomFilter(StoreFileReader.java:322)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileReader.passesBloomFilter(StoreFileReader.java:251)
> at
> org.apache.hadoop.hbase.regionserver.StoreFileScanner.shouldUseScanner(StoreFileScanner.java:491)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.selectScannersFrom(StoreScanner.java:471)
> at
> org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:249)
> at
> org.apache.hadoop.hbase.regionserver.HStore.createScanner(HStore.java:2177)
> at
> org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:2168)
> at
> org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.initializeScanners(HRegion.java:7172)
> {noformat}
> Bloom filter type on all files here is ROW, block encoding is FAST_DIFF:
> {noformat}
> hbase:017:0> describe "IntegrationTestBigLinkedList"
> Table IntegrationTestBigLinkedList is ENABLED
>
> IntegrationTestBigLinkedList
>
> COLUMN FAMILIES DESCRIPTION
>
> {NAME => 'big', BLOOMFILTER => 'ROW', IN_MEMORY => 'false', VERSIONS => '1',
> KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'FAST_DIF
> F', COMPRESSION => 'NONE', TTL => 'FOREVER', MIN_VERSIONS => '0', BLOCKCACHE
> => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '1'}
> {NAME => 'meta', BLOOMFILTER => 'ROW', IN_MEMORY => 'false', VERSIONS => '1',
> KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'FAST_DI
> FF', COMPRESSION => 'NONE', TTL => 'FOREVER', MIN_VERSIONS => '0', BLOCKCACHE
> => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '1'}
> {NAME => 'tiny', BLOOMFILTER => 'ROW', IN_MEMORY => 'false', VERSIONS => '1',
> KEEP_DELETED_CELLS => 'FALSE', DATA_BLOCK_ENCODING => 'FAST_DI
> FF', COMPRESSION => 'NONE', TTL => 'FOREVER', MIN_VERSIONS => '0', BLOCKCACHE
> => 'true', BLOCKSIZE => '65536', REPLICATION_SCOPE => '1'}
> {noformat}
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