Few Days ago I accidentally deleted the some content of the /var/lib/cloudera-service-monitor/ts directory where monitor data are stored. Since then I'm not able to restart service monitor because different exceptions are generated. This is the last one   Failed to start Firehose java.lang.RuntimeException: com.cloudera.cmon.tstore.leveldb.LDBPartitionManager$LDBPartitionException: Unable to open DB in directory /var/lib/cloudera-service-monitor/ts/stream/partitions/stream_2015-07-10T07:22:29.111Z for partition LDBPartitionMetadataWrapper{tableName=stream, partitionName=stream_2015-07-10T07:22:29.111Z, startTime=2015-07-10T07:22:29.111Z, endTime=null, version=2, state=CLOSED} at com.cloudera.cmon.tstore.leveldb.LDBPartitionManager.getPartition(LDBPartitionManager.java:722) at com.cloudera.cmon.tstore.leveldb.LDBPartitionUtils.forPartition(LDBPartitionUtils.java:70) at com.cloudera.cmon.tstore.leveldb.LDBPartitionUtils.writeForPartition(LDBPartitionUtils.java:45) at com.cloudera.cmon.tstore.leveldb.LDBTimeSeriesStreamTable.write(LDBTimeSeriesStreamTable.java:118) at com.cloudera.cmon.tstore.leveldb.LDBTimeSeriesStreamTable.write(LDBTimeSeriesStreamTable.java:107) at com.cloudera.cmon.tstore.leveldb.LDBTimeSeriesStore.write(LDBTimeSeriesStore.java:236) at com.cloudera.cmon.tstore.AggregatingTimeSeriesStore.write(AggregatingTimeSeriesStore.java:219) at com.cloudera.cmon.kaiser.TimeSeriesHelper.insertInternalMetrics(TimeSeriesHelper.java:194) at com.cloudera.cmon.firehose.Firehose.insertStartupMetrics(Firehose.java:518) at com.cloudera.cmon.firehose.Firehose.<init>(Firehose.java:310) at com.cloudera.cmon.firehose.Main.main(Main.java:527) Caused by: com.cloudera.cmon.tstore.leveldb.LDBPartitionManager$LDBPartitionException: Unable to open DB in directory /var/lib/cloudera-service-monitor/ts/stream/partitions/stream_2015-07-10T07:22:29.111Z for partition LDBPartitionMetadataWrapper{tableName=stream, partitionName=stream_2015-07-10T07:22:29.111Z, startTime=2015-07-10T07:22:29.111Z, endTime=null, version=2, state=CLOSED} at com.cloudera.cmon.tstore.leveldb.LDBUtils.openOrCreatePartitionDB(LDBUtils.java:195) at com.cloudera.cmon.tstore.leveldb.LDBPartitionManager.getOrOpenInternal(LDBPartitionManager.java:616) at com.cloudera.cmon.tstore.leveldb.LDBPartitionManager.openOrCreatePartitionLDB(LDBPartitionManager.java:557) at com.cloudera.cmon.tstore.leveldb.LDBPartitionManager.getPartition(LDBPartitionManager.java:451) at com.cloudera.cmon.tstore.leveldb.LDBPartitionManager.getPartition(LDBPartitionManager.java:713) ... 10 more Caused by: org.fusesource.leveldbjni.internal.NativeDB$DBException: Invalid argument: /var/lib/cloudera-service-monitor/ts/stream/partitions/stream_2015-07-10T07:22:29.111Z: does not exist (create_if_missing is false) 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.openOrCreatePartitionDB(LDBUtils.java:185) ... 14 more     When  I check on filesystem the directory exist but I'm not able to solve the problem.    Can anyone help me   Thanks in advance   ... View more