dataPath=/hdd3/cassandra/data/gps/gpsfullwithstate-073e51a0cdb811e68dce511be6a305f6/mc-100963-big-Data.db echo "run -b org.apache.cassandra.db:type=CompactionManager forceUserDefinedCompaction $dataPath" | java -jar /opt/cassandra/tools/jmx/jmxterm-1.0-alpha-4-uber.jar -l localhost:7199
In the above, I am using a jmx method. But it seems that the file size doesn’t change. My command is wrong ? > 在 2017年9月1日，下午2:17，Jeff Jirsa <jji...@gmail.com> 写道： > > User defined compaction to do a single sstable compaction on just that sstable > > It's a nodetool command in very recent versions, or a jmx method in older > versions > > > -- > Jeff Jirsa > > >> On Aug 31, 2017, at 11:04 PM, qf zhou <zhouqf2...@gmail.com> wrote: >> >> I am using a cluster with 3 nodes and the cassandra version is 3.0.9. I >> have used it about 6 months. Now each node has about 1.5T data in the disk. >> I found some sstables file are over 300G. Using the sstablemetadata >> command, I found it: Estimated droppable tombstones: 0.9622972799707109. >> It is obvious that too much tombstone data exists. >> The default_time_to_live = 8640000(100 days) and gc_grace_seconds = >> 432000(5 days). Using nodetool compactionstats, I found the some >> compaction processes exists. >> So I really want to know how to clear tombstone data ? otherwise the disk >> space will cost too much. >> I really need some help, because some few people know cassandra in my >> company. >> Thank you very much! >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >> For additional commands, e-mail: user-h...@cassandra.apache.org >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org > For additional commands, e-mail: user-h...@cassandra.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
