Wei-Chiu Chuang created HDFS-14800: -------------------------------------- Summary: Data race between block report and recoverLease() Key: HDFS-14800 URL: https://issues.apache.org/jira/browse/HDFS-14800 Project: Hadoop HDFS Issue Type: Bug Reporter: Wei-Chiu Chuang
I thought I fixed it in HDFS-10240, but I am seeing a similar race condition in a precommit test again. https://builds.apache.org/job/PreCommit-HDFS-Build/27717/testReport/org.apache.hadoop.hdfs/TestDFSUpgradeFromImage/testUpgradeFromRel1BBWImage/ {noformat} 2019-08-29 13:34:31,788 [IPC Server handler 9 on default port 39637] INFO namenode.FSNamesystem (FSNamesystem.java:recoverLeaseInternal(2682)) - recoverLease: [Lease. Holder: DFSClient_8256078, pending creates: 13], src=/1kb-multiple-checksum-blocks-64-16 from client DFSClient_8256078 2019-08-29 13:34:31,788 [IPC Server handler 9 on default port 39637] INFO namenode.FSNamesystem (FSNamesystem.java:internalReleaseLease(3424)) - Recovering [Lease. Holder: DFSClient_8256078, pending creates: 13], src=/1kb-multiple-checksum-blocks-64-16 2019-08-29 13:34:31,789 [IPC Server handler 9 on default port 39637] WARN BlockStateChange (BlockUnderConstructionFeature.java:initializeBlockRecovery(238)) - BLOCK* BlockUnderConstructionFeature.initializeBlockRecovery: No blocks found, lease removed. 2019-08-29 13:34:31,790 [IPC Server handler 9 on default port 39637] WARN hdfs.StateChange (FSNamesystem.java:internalReleaseLease(3550)) - DIR* NameSystem.internalReleaseLease: File /1kb-multiple-checksum-blocks-64-16 has not been closed. Lease recovery is in progress. RecoveryId = 1031 for block blk_7162739548153522810_1020 2019-08-29 13:34:31,791 [Block report processor] INFO BlockStateChange (BlockManager.java:processReport(2645)) - BLOCK* processReport 0x8f0bcadff51597e8: Processing first storage report for DS-dd914776-8c9f-4f0d-9bd3-91a552bdc351 from datanode 187b2e09-75e8-4bd0-ab46-90e32839a21d 2019-08-29 13:34:31,793 [Block report processor] INFO BlockStateChange (BlockManager.java:processReport(2674)) - BLOCK* processReport 0x8f0bcadff51597e8: from storage DS-dd914776-8c9f-4f0d-9bd3-91a552bdc351 node DatanodeRegistration(127.0.0.1:32987, datanodeUuid=187b2e09-75e8-4bd0-ab46-90e32839a21d, infoPort=42569, infoSecurePort=0, ipcPort=39147, storageInfo=lv=-57;cid=testClusterId;nsid=889473900;c=1567085670457), blocks: 13, hasStaleStorage: false, processing time: 2 msecs, invalidatedBlocks: 0 2019-08-29 13:34:31,808 [BP-268013932-172.17.0.2-1567085670423 heartbeating to localhost/127.0.0.1:39637] INFO datanode.DataNode (BPServiceActor.java:blockReport(432)) - Successfully sent block report 0x8f0bcadff51597e8, containing 1 storage report(s), of which we sent 1. The reports had 13 total blocks and used 1 RPC(s). This took 4 msecs to generate and 33 msecs for RPC and NN processing. Got back no commands. 2019-08-29 13:34:32,795 [IPC Server handler 8 on default port 39637] INFO namenode.FSNamesystem (FSNamesystem.java:recoverLeaseInternal(2682)) - recoverLease: [Lease. Holder: DFSClient_NONMAPREDUCE_1352689944_1, pending creates: 1], src=/1kb-multiple-checksum-blocks-64-16 from client DFSClient_NONMAPREDUCE_1352689944_1 2019-08-29 13:34:32,795 [IPC Server handler 8 on default port 39637] INFO namenode.FSNamesystem (FSNamesystem.java:internalReleaseLease(3424)) - Recovering [Lease. Holder: DFSClient_NONMAPREDUCE_1352689944_1, pending creates: 1], src=/1kb-multiple-checksum-blocks-64-16 2019-08-29 13:34:32,796 [IPC Server handler 8 on default port 39637] INFO blockmanagement.BlockManager (PendingRecoveryBlocks.java:add(80)) - Block recovery attempt for blk_7162739548153522810_1020 rejected, as the previous attempt times out in 88 seconds. {noformat} Looks like if client calls recoverLease on a file before NameNod receives a block report from DataNodes, it will fail to recover the lease, and the file remains unclosed. -- This message was sent by Atlassian Jira (v8.3.2#803003) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org