简介:
CDH5.11集群,由于停电造成节点全部挂掉,重启后HDFS报错,同时由于HDFS报错,引起其他基于HDFS的应用如HBASE等也报错,恢复方法如下。
报错介绍:
我这里的错误,摘录部分日志如下:
在namenode中的报错如下
2017-07-03 13:53:10,377 FATAL org.apache.hadoop.hdfs.server.namenode.FSEditLog: Error: recoverUnfinalizedSegments failed for required journal (JournalAndStream(mgr=QJM to [192.168.60.43:8485, 192.168.60.45:8485, 192.168.60.46:8485], stream=null))
java.io.IOException: Timed out waiting 120000ms for a quorum of nodes to respond.
at org.apache.hadoop.hdfs.qjournal.client.AsyncLoggerSet.waitForWriteQuorum(AsyncLoggerSet.java:137)
at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.createNewUniqueEpoch(QuorumJournalManager.java:183)
at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.recoverUnfinalizedSegments(QuorumJournalManager.java:441)
at org.apache.hadoop.hdfs.server.namenode.JournalSet$8.apply(JournalSet.java:624)
at org.apache.hadoop.hdfs.server.namenode.JournalSet.mapJournalsAndReportErrors(JournalSet.java:393)
at org.apache.hadoop.hdfs.server.namenode.JournalSet.recoverUnfinalizedSegments(JournalSet.java:621)
at org.apache.hadoop.hdfs.server.namenode.FSEditLog.recoverUnclosedStreams(FSEditLog.java:1478)
at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.startActiveServices(FSN