Hi, I experience exactly the same thing.
After deleting many rows I do not see a decrease in size of data on disk. When I run a major compact manually from the shell it outputs the same as for Sasha: 0 row(s) in 0.9210 seconds I am running HBase standalone (without hadoop) on local disk. On Fri, 2011-08-26 at 10:42 +0300, sasha.maksimenko wrote: > hi! > hm > I've deleted and after that run major_compact > > HBase Shell; enter 'help<RETURN>' for list of supported commands. > Version: 0.20.6, r965666, Mon Jul 19 15:48:07 PDT 2010 > hbase(main):001:0> major_compact 'task' > 0 row(s) in 0.9210 seconds > hbase(main):002:0> > > > is it could be a problem that I use local file system - not HDFS? > > > > If you run a major_compact from the shell that should purge out deleted > > records. By default the major compaction happens on every table every 24 > > hours. > > > > -chris > > > > On Aug 25, 2011, at 12:17 AM, sasha.maksimenko wrote: > > > >> hi! > >> I need to free hdd space, so I want to delete some unimportant rows > >> I'm using Thrift call > >> deleteAllRow(TABLE, ROWID); > >> to perform deletion of about 10 000 row (when I loaded them it was about > >> 30Gb). When I perform this operation I checked thru hbase shell that rows > >> are deleted, but used space of the disk is not changed > >> I performed compact and major_compact operations (they returned 0 > >> processed rows) but space is not changed too. > >> > >> So quesition what should I also do to indicate hbase physically remove > >> this rows >
