[ https://issues.apache.org/jira/browse/HDFS-16914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tao Li resolved HDFS-16914. --------------------------- Fix Version/s: 3.4.0 Resolution: Fixed > Add some logs for updateBlockForPipeline RPC. > --------------------------------------------- > > Key: HDFS-16914 > URL: https://issues.apache.org/jira/browse/HDFS-16914 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namanode > Affects Versions: 3.3.4 > Reporter: ZhangHB > Assignee: ZhangHB > Priority: Minor > Labels: pull-request-available > Fix For: 3.4.0 > > > Recently,we received an phone alarm about missing blocks. We found logs in > one datanode where the block was placed on like below: > > {code:java} > 2023-02-09 15:05:10,376 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: > Received BP-578784987-x.x.x.x-1667291826362:blk_1305044966_231832415 src: > /clientAddress:44638 dest: /localAddress:50010 of size 45733720 > 2023-02-09 15:05:10,376 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: > Received BP-578784987-x.x.x.x-1667291826362:blk_1305044966_231826462 src: > /upStreamDatanode:60316 dest: /localAddress:50010 of size 45733720 {code} > the datanode received the same block with different generation stamp because > of socket timeout exception. blk_1305044966_231826462 is received from > upstream datanode in pipeline which has two datanodes. > blk_1305044966_231832415 is received from client directly. > > we have search all log info about blk_1305044966 in namenode and three > datanodes in original pipeline. but we could not obtain any helpful message > about the generation stamp 231826462. After diving into the source code, it > was assigned in NameNodeRpcServer#updateBlockForPipeline which was invoked in > DataStreamer#setupPipelineInternal. The updateBlockForPipeline RPC does not > have any log info. So I think we should add some logs in this RPC. > > -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org