hadoop namenode 进程异常停止
hadoop journalnode
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flush failed for required journal (JournalAndStream(mgr=QJM to [10.0.2.63:8485, 10.0.2.64:8485, 10.0.2.65:8485]
- namenode

- journalnode
org.apache.hadoop.ipc.Server: Socket Reader #1 for port 8485: readAndProcess from client 10.0.2.62 threw exception [java.io.IOException: No route to host]

可能是设备网络波动导致,尝试增加写入journalnode 超时时长;
<!-- 增加写入journalnode 超时时长 -->
<property>
<name>dfs.qjournal.write-txns.timeout.ms</name>
<value>60000</value>
<describe>Write timeout in milliseconds when writing to a quorum of remote journals.</describe>
</property>
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