2017-11-22 11:08:30,510 WARN namenode.FSImage (EditLogFileInputStream.java:scanEditLog(359)) - Caught exception after scanning through 0 ops from /hadoop/hdfs/journal/ha/current/edits_inprogress_0000000000008164541 while determining its valid length. Position was 1044480
java.io.IOException: Can't scan a pre-transactional edit log.
at org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$LegacyReader.scanOp(FSEditLogOp.java:4592)
at org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.scanNextOp(EditLogFileInputStream.java:245)
at org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.scanEditLog(EditLogFileInputStream.java:355)
at org.apache.hadoop.hdfs.server.namenode.FileJournalManager$EditLogFile.scanLog(FileJournalManager.java:551)
at org.apache.hadoop.hdfs.qjournal.server.Journal.scanStorageForLatestEdits(Journal.java:193)
at org.apache.hadoop.hdfs.qjournal.server.Journal.<init>(Journal.java:153)
at org.apache.hadoop.hdfs.qjournal.server.JournalNode.getOrCreateJournal(JournalNode.java:93)
at org.apache.hadoop.hdfs.qjournal.server.JournalNode.getOrCreateJournal(JournalNode.java:102)
at org.apache.hadoop.hdfs.qjournal.server.JournalNodeRpcServer.getJournalState(JournalNodeRpcServer.java:124)
at org.apache.hadoop.hdfs.qjournal.protocolPB.QJournalProtocolServerSideTranslatorPB.getJournalState(QJournalProtocolServerSideTranslatorPB.java:118)
at org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos$QJournalProtocolService$2.callBlockingMethod(QJournalProtocolProtos.java:25415)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2086)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2082)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1693)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2080)，
第一種方案
此節點的journalnode的元數據出現了問題，需要從其他正常節點的journalnode的元數據拷貝過來重啓服務，需要注意各個文件的權限
第二種方案
先停止journalnode服務
刪除此節點journalnode元數據存儲路徑中current文件夾中version以外的文件，啓動journalnode