Suddenly happend this error.                             Since then, never start Service Monitor and Host Monitor.   There are some erros here.     2016-09-24 18:54:31,147 INFO com.cloudera.cmon.firehose.Main: Hosts: 12 2016-09-24 18:54:31,147 INFO com.cloudera.cmon.firehose.Main: Cluster size: MEDIUM 2016-09-24 18:54:31,211 INFO com.cloudera.cmon.tstore.leveldb.LDBResourceManager: Max file descriptors: 32768 2016-09-24 18:54:31,212 INFO com.cloudera.cmon.tstore.leveldb.LDBResourceManager: Setting maximum open fds to: 2048 2016-09-24 18:54:31,311 ERROR com.cloudera.cmon.firehose.Main: Error creating LevelDB timeseries store in directory /var/lib/cloudera-host-monitor/ts org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: CURRENT file does not end with newline at org.fusesource.leveldbjni.internal.NativeDB.checkStatus(NativeDB.java:194) at org.fusesource.leveldbjni.internal.NativeDB.open(NativeDB.java:212) at org.fusesource.leveldbjni.JniDBFactory.open(JniDBFactory.java:168) at com.cloudera.cmon.tstore.leveldb.LDBUtils.openVersionedDB(LDBUtils.java:246) at com.cloudera.cmon.tstore.leveldb.LDBTimeSeriesMetadataStore.openMetadataDB(LDBTimeSeriesMetadataStore.java:149) at com.cloudera.cmon.tstore.leveldb.LDBTimeSeriesMetadataStore.<init>(LDBTimeSeriesMetadataStore.java:139) at com.cloudera.cmon.firehose.Main.main(Main.java:450)     my hadoop Spec is this.                                                     what needs to be done in order to solve it ?   Thanks.     ... View more