运维问题收集

HDFS曾经写满，启动HMaster就会出现如下报错。目前解决是把HDFS目录下的splitting删了。

Caused by: java.io.IOException: error or interrupted while splitting logs in [hdfs://:8020/hbase/WALs/bar,60020,1463108975915-splitting]

HBase Master的WebUI出现如下状况，要查看RegionServer的日志是否有问题。

hbase:meta, state=FAILED_OPEN

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org.apache.hadoop.hdfs.BlockMissingException: Could not obtain block

如果如上块坏掉的错误，HDFS执行如下命令清理坏块

  1. hdfs fsck -delete