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ASF GitHub Bot commented on HDFS-16914: --------------------------------------- hfutatzhanghb commented on PR #5381: URL: https://github.com/apache/hadoop/pull/5381#issuecomment-1429013894 @slfan1989 @tomscut modify the log content. add "success" literal. > 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 > > 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-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org