cdh集群出现“无法发出查询：Host Monitor 未运行”

最新推荐文章于 2025-06-24 17:39:58 发布

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最新推荐文章于 2025-06-24 17:39:58 发布

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分类专栏： CDH

本文链接：https://blog.youkuaiyun.com/zhangxu1024/article/details/80706105

cdh集群出现“无法发出查询：Host Monitor 未运行”

出现问题后，首先想到查看日志：

/var/log/cloudera-scm-server/cloudera-scm-server.log

2018-06-01 11:58:00,001 INFO 618348787@agentServer-2579:com.cloudera.server.common.MonitoringThreadPool: agentServer: waiting in queue stats: average=0ms, min=0ms, max=1ms.
2018-06-01 11:58:24,208 INFO ScmActive-0:com.cloudera.server.cmf.components.ScmActive: (119 skipped) ScmActive completed successfully.
2018-06-01 11:58:38,291 ERROR DatabaseSizeGauge-0:com.cloudera.enterprise.DatabaseSizeGauge: Failed to execute db size query.
java.lang.NullPointerException
        at com.cloudera.enterprise.dbutil.DbUtil.getDatabaseSize(DbUtil.java:736)
        at com.cloudera.enterprise.DatabaseSizeGauge.run(DatabaseSizeGauge.java:75)
        at java.ut