org.apache.hadoop.hdfs.qjournal.client.QuorumException

最新推荐文章于 2022-12-07 00:59:36 发布

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本文记录了在启动Hadoop NameNode过程中遇到的初始化错误，具体表现为无法检查JournalNodes是否准备好进行格式化操作，提示连接被拒绝。问题源于hdfs-site.xml文件中关于共享编辑目录的配置不正确。

org.apache.hadoop.hdfs.qjournal.client.QuorumException: Unable to check if JNs are ready for formatting. 1 exceptions thrown:
192.168.254.101:8485: Call From hadoop101/192.168.254.101 to hadoop101:8485 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at org.apache.hadoop.hdfs.qjournal.client.QuorumException.create(QuorumException.java:81)
at org.apache.hadoop.hdfs.qjournal.client.QuorumCall.rethrowException(QuorumCall.java:223)
at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.hasSomeData(QuorumJournalManager.java:232)
at org.apache.hadoop.hdfs.server.common.Storage.confirmFormat(Storage.java:900)
at org.apache.hadoop.hdfs.server.namenode.FSImage.confirmFormat(FSImage.java:184)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:987)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1429)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
16/01/18 23:43:42 INFO ipc.Client: Retrying connect to server: hadoop102/192.168.254.102:8485. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/01/18 23:43:43 INFO ipc.Client: Retrying connect to server: hadoop103/192.168.254.103:8485. Already tried 9 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
16/01/18 23:43:43 ERROR namenode.NameNode: Failed to start namenode.
org.apache.hadoop.hdfs.qjournal.client.QuorumException: Unable to check if JNs are ready for formatting. 1 exceptions thrown:
192.168.254.101:8485: Call From hadoop101/192.168.254.101 to hadoop101:8485 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at org.apache.hadoop.hdfs.qjournal.client.QuorumException.create(QuorumException.java:81)
at org.apache.hadoop.hdfs.qjournal.client.QuorumCall.rethrowException(QuorumCall.java:223)
at org.apache.hadoop.hdfs.qjournal.client.QuorumJournalManager.hasSomeData(QuorumJournalManager.java:232)
at org.apache.hadoop.hdfs.server.common.Storage.confirmFormat(Storage.java:900)
at org.apache.hadoop.hdfs.server.namenode.FSImage.confirmFormat(FSImage.java:184)
at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:987)
at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1429)
at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1554)
16/01/18 23:43:43 INFO util.ExitUtil: Exiting with status 1

16/01/18 23:43:43 INFO namenode.NameNode: SHUTDOWN_MSG:

遇到以上问题，是由于hdfs-site.xml中

<property>
<name>dfs.namenode.shared.edits.dir</name>
<value>qjournal://hadoop104:8485;hadoop105:8485/cluster1</value>
</property>

未配置正确