Szabolcs Bukros created HBASE-23589:
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Summary: FlushDescriptor contains non-matching family/output
combinations
Key: HBASE-23589
URL: https://issues.apache.org/jira/browse/HBASE-23589
Project: HBase
Issue Type: Bug
Components: read replicas
Affects Versions: 2.2.2
Reporter: Szabolcs Bukros
Assignee: Szabolcs Bukros
Flushing the active region creates the following files:
{code:java}
2019-12-13 08:00:20,866 INFO org.apache.hadoop.hbase.regionserver.HStore: Added
hdfs://replica-1:8020/hbase/data/default/IntegrationTestRegionReplicaReplication/20af2eb8929408f26d0b3b81e6b86d47/f2/dab4d1cc01e44773bad7bdb5d2e33b6c,
entries=49128, sequenceid
=70688, filesize=41.4 M
2019-12-13 08:00:20,897 INFO org.apache.hadoop.hbase.regionserver.HStore: Added
hdfs://replica-1:8020/hbase/data/default/IntegrationTestRegionReplicaReplication/20af2eb8929408f26d0b3b81e6b86d47/f3/ecc50f33085042f7bd2397253b896a3a,
entries=50000, sequenceid
=70688, filesize=42.3 M
{code}
On the read replica region when we try to replay the flush we see the following:
{code:java}
2019-12-13 08:00:21,279 WARN org.apache.hadoop.hbase.regionserver.HRegion:
bfa9cdb0ab13d60b389df6621ab316d1 : At least one of the store files in flush:
action: COMMIT_FLUSH table_name: "IntegrationTestRegionReplicaReplication"
encoded_region_name: "20af2eb8929408f26d0b3b81e6b86d47" flush_sequence_number:
70688 store_flushes { family_name: "f2" store_home_dir: "f2" flush_output:
"ecc50f33085042f7bd2397253b896a3a" } store_flushes { family_name: "f3"
store_home_dir: "f3" flush_output: "dab4d1cc01e44773bad7bdb5d2e33b6c" }
region_name:
"IntegrationTestRegionReplicaReplication,cccccccc,1576252065847.20af2eb8929408f26d0b3b81e6b86d47."
doesn't exist any more. Skip loading the file(s)
java.io.FileNotFoundException: HFileLink
locations=[hdfs://replica-1:8020/hbase/data/default/IntegrationTestRegionReplicaReplication/20af2eb8929408f26d0b3b81e6b86d47/f2/ecc50f33085042f7bd2397253b896a3a,
hdfs://replica-1:8020/hbase/.tmp/data/default/IntegrationTestRegionReplicaReplication/20af2eb8929408f26d0b3b81e6b86d47/f2/ecc50f33085042f7bd2397253b896a3a,
hdfs://replica-1:8020/hbase/mobdir/data/default/IntegrationTestRegionReplicaReplication/20af2eb8929408f26d0b3b81e6b86d47/f2/ecc50f33085042f7bd2397253b896a3a,
hdfs://replica-1:8020/hbase/archive/data/default/IntegrationTestRegionReplicaReplication/20af2eb8929408f26d0b3b81e6b86d47/f2/ecc50f33085042f7bd2397253b896a3a]
at org.apache.hadoop.hbase.io.FileLink.getFileStatus(FileLink.java:415)
at
org.apache.hadoop.hbase.util.ServerRegionReplicaUtil.getStoreFileInfo(ServerRegionReplicaUtil.java:135)
at
org.apache.hadoop.hbase.regionserver.HRegionFileSystem.getStoreFileInfo(HRegionFileSystem.java:311)
at
org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.replayFlush(HStore.java:2414)
at
org.apache.hadoop.hbase.regionserver.HRegion.replayFlushInStores(HRegion.java:5310)
at
org.apache.hadoop.hbase.regionserver.HRegion.replayWALFlushCommitMarker(HRegion.java:5184)
at
org.apache.hadoop.hbase.regionserver.HRegion.replayWALFlushMarker(HRegion.java:5018)
at
org.apache.hadoop.hbase.regionserver.RSRpcServices.doReplayBatchOp(RSRpcServices.java:1143)
at
org.apache.hadoop.hbase.regionserver.RSRpcServices.replay(RSRpcServices.java:2229)
at
org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos$AdminService$2.callBlockingMethod(AdminProtos.java:29754)
at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:413)
at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:133)
at
org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:338)
at
org.apache.hadoop.hbase.ipc.RpcExecutor$Handler.run(RpcExecutor.java:318)
{code}
As you can see the flush_outputs are mixed up.
The issue is caused by HRegion.internalFlushCacheAndCommit. The code assumes
"{color:#808080}stores.values() and storeFlushCtxs have same order{color}"
which no longer seems to be true.
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