Here "d" should be the column family being compacted. Do you have 3-5 column families of the same region being compacted?
On Wed, Sep 4, 2013 at 8:36 AM, Tom Brown <[email protected]> wrote: > Is it normal to receive 3-5 distinct "Compaction Complete" statuses for the > same region each second? For any individual region, it continuously > generates "Compacting d in {theregion}... Compaction Complete" statuses for > minutes or hours. > > In that status message, what is "d"? > > --Tom > > > On Wed, Sep 4, 2013 at 6:21 AM, Frank Chow <[email protected]> > wrote: > > > Hi Tom, > > Below parameters may help to reduce the compaction number: > > > > <property> > > <name>hbase.hstore.compactionThreshold</name> > > <value>3</value> > > <description> > > If more than this number of HStoreFiles in any one HStore > > (one HStoreFile is written per flush of memstore) then a compaction > > is run to rewrite all HStoreFiles files as one. Larger numbers > > put off compaction but when it runs, it takes longer to complete. > > </description> > > </property> > > > > Make the value larger, if there are too many small files in the region > > dir, this may help a lot. > > > > > > > > > > > > > > > > > > Frank Chow >
