[
https://issues.apache.org/jira/browse/HDFS-16738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17583331#comment-17583331
]
ASF GitHub Bot commented on HDFS-16738:
---------------------------------------
ZanderXu opened a new pull request, #4791:
URL: https://github.com/apache/hadoop/pull/4791
### Description of PR
Invalid CallerContext caused NullPointerException.
```
2022-08-23 11:58:03,258 [FSEditLogAsync] ERROR namenode.FSEditLog
(JournalSet.java:mapJournalsAndReportErrors(398)) - Error: write op failed for
required journal (JournalAndStream(mgr=QJM to [127.0.0.1:55779,
127.0.0.1:55781, 127.0.0.1:55783], stream=QuorumOutputStream starting at txid
1))
java.lang.NullPointerException
at org.apache.hadoop.io.UTF8.set(UTF8.java:97)
at
org.apache.hadoop.hdfs.server.namenode.FSImageSerialization.writeString(FSImageSerialization.java:361)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$AddCloseOp.writeFields(FSEditLogOp.java:586)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$Writer.writeOp(FSEditLogOp.java:4986)
at
org.apache.hadoop.hdfs.server.namenode.EditsDoubleBuffer$TxnBuffer.writeOp(EditsDoubleBuffer.java:158)
at
org.apache.hadoop.hdfs.server.namenode.EditsDoubleBuffer.writeOp(EditsDoubleBuffer.java:61)
at
org.apache.hadoop.hdfs.qjournal.client.QuorumOutputStream.write(QuorumOutputStream.java:50)
at
org.apache.hadoop.hdfs.server.namenode.JournalSet$JournalSetOutputStream$1.apply(JournalSet.java:462)
at
org.apache.hadoop.hdfs.server.namenode.JournalSet.mapJournalsAndReportErrors(JournalSet.java:393)
at
org.apache.hadoop.hdfs.server.namenode.JournalSet.access$200(JournalSet.java:56)
at
org.apache.hadoop.hdfs.server.namenode.JournalSet$JournalSetOutputStream.write(JournalSet.java:458)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.doEditTransaction(FSEditLog.java:496)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync$Edit.logEdit(FSEditLogAsync.java:311)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync.run(FSEditLogAsync.java:253)
at java.lang.Thread.run(Thread.java:748)
```
> Invalid CallerContext caused NullPointerException
> -------------------------------------------------
>
> Key: HDFS-16738
> URL: https://issues.apache.org/jira/browse/HDFS-16738
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: ZanderXu
> Assignee: ZanderXu
> Priority: Critical
>
> {code:java}
> 2022-08-23 11:58:03,258 [FSEditLogAsync] ERROR namenode.FSEditLog
> (JournalSet.java:mapJournalsAndReportErrors(398)) - Error: write op failed
> for required journal (JournalAndStream(mgr=QJM to [127.0.0.1:55779,
> 127.0.0.1:55781, 127.0.0.1:55783], stream=QuorumOutputStream starting at txid
> 1))
> java.lang.NullPointerException
> at org.apache.hadoop.io.UTF8.set(UTF8.java:97)
> at
> org.apache.hadoop.hdfs.server.namenode.FSImageSerialization.writeString(FSImageSerialization.java:361)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$AddCloseOp.writeFields(FSEditLogOp.java:586)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$Writer.writeOp(FSEditLogOp.java:4986)
> at
> org.apache.hadoop.hdfs.server.namenode.EditsDoubleBuffer$TxnBuffer.writeOp(EditsDoubleBuffer.java:158)
> at
> org.apache.hadoop.hdfs.server.namenode.EditsDoubleBuffer.writeOp(EditsDoubleBuffer.java:61)
> at
> org.apache.hadoop.hdfs.qjournal.client.QuorumOutputStream.write(QuorumOutputStream.java:50)
> at
> org.apache.hadoop.hdfs.server.namenode.JournalSet$JournalSetOutputStream$1.apply(JournalSet.java:462)
> at
> org.apache.hadoop.hdfs.server.namenode.JournalSet.mapJournalsAndReportErrors(JournalSet.java:393)
> at
> org.apache.hadoop.hdfs.server.namenode.JournalSet.access$200(JournalSet.java:56)
> at
> org.apache.hadoop.hdfs.server.namenode.JournalSet$JournalSetOutputStream.write(JournalSet.java:458)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLog.doEditTransaction(FSEditLog.java:496)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync$Edit.logEdit(FSEditLogAsync.java:311)
> at
> org.apache.hadoop.hdfs.server.namenode.FSEditLogAsync.run(FSEditLogAsync.java:253)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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