Premal, So this should be set at /conf/hbase-site.xml?
thanks, Jason On Fri, Sep 20, 2013 at 4:15 PM, Premal Shah <[email protected]>wrote: > <!-- Disabling automatic major compaction --> > <property> > <name>hbase.hregion.majorcompaction</name> > <value>0</value> > </property> > > > > On Fri, Sep 20, 2013 at 1:06 PM, Jason Huang <[email protected]> > wrote: > > > Hello, > > > > The hbase book at apache website has the following statement about > > controlling major compaction: "A common administrative technique is to > > manage major compactions manually, rather than letting HBase do it. By > > default,HConstants.MAJOR_COMPACTION_PERIOD is one day and major > compactions > > may kick in when you least desire it - especially on a busy system. To > turn > > off automatic major compactions set the value to 0." > > > > So... If we choose to let HBase do it, is there a way we can set to let > > HBase do the major compaction at a certain time of the day? Or is it > random > > and could be at any time of the day? > > > > And if we set HConstants.MAJOR_COMPACTION_PERIOD to 0, that means we have > > to kick off major compaction manually through HBase shell or write a > script > > to enter shell and execute the major compaction at a certain time? Also, > > where should I set HConstants.MAJOR_COMPACTION_PERIOD = 0? In > > /conf/hbase-site.xml? > > > > thanks! > > > > Jason > > > > > > -- > Regards, > Premal Shah. >
