报错内容:
ERROR [Thread-21] master.HMaster: Failed to become active
master
java.lang.IllegalStateException: The procedure WAL relies on the ability to hsync for
proper operation during component failures, but the underlying filesystem does not
support doing so. Please check the config value of
'hbase.procedure.store.wal.use.hsync' to set the desired level of robustness and
ensure the config value of 'hbase.wal.dir' points to a FileSystem mount that can
provide it.
at
org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore.rollWriter(WALProcedure
Store.java:1034)
at
org.apache.hadoop.hbase.procedure2.store.wal.WALProcedureStore.recoverLease(WALProcedu
reStore.java:374)
at
org.apache.hadoop.hbase.procedure2.ProcedureExecutor.start(ProcedureExecutor.java:530)
at
org.apache.hadoop.hbase.master.HMaster.startProcedureExecutor(HMaster.java:1267)
at
org.apache.hadoop.hbase.master.HMaster.startServiceThreads(HMaster.java:1173)
at
org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:8
81)
at
org.apache.hadoop.hbase.master.HMaster.startActiveMasterManager(HMaster.java:2048)
at org.apache.hadoop.hbase.master.HMaster.lambda$run$0(HMaster.java:568)
at java.lang.Thread.run(Thread.java:745)
解决方法:
在配置文件 hbase-site.xml中添加:
<property>
<name>hbase.unsafe.stream.capability.enforce</name>
<value>false</value>
</property>
重启之后,问题就解决了。

博客展示了HBase的报错信息,报错原因为底层文件系统不支持hsync操作。解决方法是在配置文件hbase-site.xml中添加特定属性,将hbase.unsafe.stream.capability.enforce的值设为false,重启后问题可解决。
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