Deegue created HDFS-15485:
-----------------------------
Summary: Fix outdated properties of JournalNode when performing
rollback
Key: HDFS-15485
URL: https://issues.apache.org/jira/browse/HDFS-15485
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Deegue
When rollback HDFS cluster, properties in JNStorage won't be refreshed after
the storage dir changed. It leads to exceptions when starting namenode.
The exception like:
{code:java}
2020-07-09 19:04:12,810 FATAL [IPC Server handler 105 on 8022]
org.apache.hadoop.hdfs.server.namenode.FSEditLog: Error:
recoverUnfinalizedSegments failed for required journal
(JournalAndStream(mgr=QJM to [10.0.118.217:8485, 10.0.117.208:8485,
10.0.118.179:8485], stream=null))
org.apache.hadoop.hdfs.qjournal.client.QuorumException: Got too many exceptions
to achieve quorum size 2/3. 3 exceptions thrown:
10.0.118.217:8485: Incompatible namespaceID for journal Storage Directory
/mnt/vdc-11176G-0/dfs/jn/nameservicetest1: NameNode has nsId 647617129 but
storage has nsId 0
at
org.apache.hadoop.hdfs.qjournal.server.JNStorage.checkConsistentNamespace(JNStorage.java:236)
at
org.apache.hadoop.hdfs.qjournal.server.Journal.newEpoch(Journal.java:300)
at
org.apache.hadoop.hdfs.qjournal.server.JournalNodeRpcServer.newEpoch(JournalNodeRpcServer.java:136)
at
org.apache.hadoop.hdfs.qjournal.protocolPB.QJournalProtocolServerSideTranslatorPB.newEpoch(QJournalProtocolServerSideTranslatorPB.java:133)
at
org.apache.hadoop.hdfs.qjournal.protocol.QJournalProtocolProtos$QJournalProtocolService$2.callBlockingMethod(QJournalProtocolProtos.java:25417)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2278)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2274)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1924)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2274)
{code}
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