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Yuanbo Liu commented on HDFS-14421: ----------------------------------- [~hexiaoqiao] Thanks for your comments. I've attached datanode debug log. Unfortunately I didn't find blk_1400651575 in NameNode log. > HDFS block two replicas exist in one DataNode > --------------------------------------------- > > Key: HDFS-14421 > URL: https://issues.apache.org/jira/browse/HDFS-14421 > Project: Hadoop HDFS > Issue Type: Bug > Reporter: Yuanbo Liu > Priority: Major > Attachments: 326942161.log > > > We're using Hadoop-2.7.0. > There is a file in the cluster and it's replication factor is 2. Those two > replicas exist in one Datande. the fsck info is here: > {color:#707070}BP-499819267-xx.xxx.131.201-1452072365222:blk_1400651575_326942161 > len=484045 repl=2 > [DatanodeInfoWithStorage[xx.xxx.80.205:50010,DS-d321be27-cbd4-4edd-81ad-29b3d021ee82,DISK], > > DatanodeInfoWithStorage[xx.xx.80.205:50010,DS-d321be27-cbd4-4edd-81ad-29b3d021ee82,DISK]].{color} > and this is the exception from xx.xx.80.205 > {color:#707070}org.apache.hadoop.hdfs.server.datanode.ReplicaNotFoundException: > Replica not found for > BP-499819267-xx.xxx.131.201-1452072365222:blk_1400651575_326942161{color} > It's confusing that why NameNode doesn't update block map after exception. > What's the reason of two replicas existing in one Datande? > Hope to get your comments. Thanks in advance. > > > -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org