[ https://issues.apache.org/jira/browse/HDFS-9818?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jing Zhao updated HDFS-9818: ---------------------------- Status: Patch Available (was: Open) > Correctly handle EC reconstruction work caused by not enough racks > ------------------------------------------------------------------ > > Key: HDFS-9818 > URL: https://issues.apache.org/jira/browse/HDFS-9818 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: datanode, namenode > Affects Versions: 3.0.0 > Reporter: Takuya Fukudome > Assignee: Jing Zhao > Attachments: HDFS-9818.000.patch, HDFS-9818.001.patch > > > This is reported by [~tfukudom]: > In a system test where 1 of 7 datanode racks were stopped, > {{HadoopIllegalArgumentException}} was seen on DataNode side while > reconstructing missing EC blocks: > {code} > 2016-02-16 11:09:06,672 WARN datanode.DataNode > (ErasureCodingWorker.java:run(482)) - Failed to recover striped block: > BP-480558282-172.29.4.13-1453805190696:blk_-9223372036850962784_278270 > org.apache.hadoop.HadoopIllegalArgumentException: Inputs not fully > corresponding to erasedIndexes in null places. erasedOrNotToReadIndexes: [1, > 2, 6], erasedIndexes: [3] > at > org.apache.hadoop.io.erasurecode.rawcoder.RSRawDecoder.doDecode(RSRawDecoder.java:166) > at > org.apache.hadoop.io.erasurecode.rawcoder.AbstractRawErasureDecoder.decode(AbstractRawErasureDecoder.java:84) > at > org.apache.hadoop.io.erasurecode.rawcoder.RSRawDecoder.decode(RSRawDecoder.java:89) > at > org.apache.hadoop.hdfs.server.datanode.erasurecode.ErasureCodingWorker$ReconstructAndTransferBlock.recoverTargets(ErasureCodingWorker.java:683) > at > org.apache.hadoop.hdfs.server.datanode.erasurecode.ErasureCodingWorker$ReconstructAndTransferBlock.run(ErasureCodingWorker.java:465) > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)