错误namenode.NameNode (NameNode.java:main(1715)) -启动namenode失败

Question

我正在尝试重新启动namenode (nn2)之一，但是我在日志中得到了以下错误：

2021-12-17 10:23:53,676 ERROR namenode.NameNode (NameNode.java:main(1715)) - Failed to start namenode.
org.apache.hadoop.hdfs.server.namenode.EditLogInputException: Error replaying edit log at offset 0.  Expected transaction ID was 274488049
        at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:226)
        at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:160)
        at org.apache.hadoop.hdfs.server.namenode.FSImage.loadEdits(FSImage.java:890)
        at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:745)
        at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:323)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:1090)
        at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:714)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:632)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:694)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:937)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:910)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1643)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1710)
Caused by: org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream$PrematureEOFException: got premature end-of-file at txid 274488048; expected file to go up to 274488109
        at org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream.nextOp(RedundantEditLogInputStream.java:197)
        at org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.readOp(EditLogInputStream.java:85)
        at org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.skipUntil(EditLogInputStream.java:151)
        at org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream.nextOp(RedundantEditLogInputStream.java:179)
        at org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.readOp(EditLogInputStream.java:85)
        at org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:213)
        ... 12 more
2021-12-17 10:23:53,678 INFO  util.ExitUtil (ExitUtil.java:terminate(210)) - Exiting with status 1: org.apache.hadoop.hdfs.server.namenode.EditLogInputException: Error replaying edit log at offset 0.  Expected transaction ID was 274488049
2021-12-17 10:23:53,681 INFO  namenode.NameNode (LogAdapter.java:info(51)) - SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at XX-XXX-XX-XXXX.XXXXX.XX/XX.X.XX.XX
************************************************************/

为了解决这一问题，我尝试采取以下步骤：

我从nn01复制到nn02的NameNode目录，下面的日志编辑了nn02_0000000000274487928-0000000000274488048

编辑0000000000274488049-0000000000274488109

到目前为止，nn02还没有启动，我也得到了同样的错误。你能帮忙吗？

Answer 1

如果这是一个HA设置，并且您的NN1工作正常。格式化您的NN2(hdfs -format)并进行引导(hdfs )，然后尝试重新启动NN2。