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Anoop Sam John commented on HBASE-8780: --------------------------------------- V2 lgtm. Test cases are passing now. > a column Family can have VERSIONS less than zero > ------------------------------------------------- > > Key: HBASE-8780 > URL: https://issues.apache.org/jira/browse/HBASE-8780 > Project: HBase > Issue Type: Bug > Components: Client > Affects Versions: 0.94.8 > Reporter: Demai Ni > Assignee: Demai Ni > Priority: Trivial > Attachments: HBASE-8780-0.94.8-v0.patch, HBASE-8780-test.txt, > HBASE-8780-trunk.patch, HBASE-8780-trunk.patch, HBASE-8780-trunk-v1.patch, > HBASE-8780-trunk-v2.patch > > > User can create/alter a columnfam and set its VERSION(aka maxVERSIONS) to a > negative or zero value. Although there is a checking in > HColumnDesciptor#construtor, hbase shell command will invoke the > setter(setMaxVersions and setMinVersions) directly, hence by pass the > checking. For example: > {code:title=set VERSIONS = -1} > hbase(main):016:0> create 't5_dn',{NAME=>'cf1',VERSIONS=>-1} > 0 row(s) in 1.0420 seconds > hbase(main):017:0> put 't5_dn','row1','cf1:q1','row1cf1_v1' > 0 row(s) in 0.0700 seconds > hbase(main):018:0> scan 't5_dn' > ROW COLUMN+CELL > > 0 row(s) in 0.0090 seconds > hbase(main):019:0> describe 't5_dn' > DESCRIPTION ENABLED > > 't5_dn', {NAME => 'cf1', REPLICATION_SCOPE => '0', true > KEEP_DELETED_CELLS => 'false', COMPRESSION => 'NONE > > ', ENCODE_ON_DISK => 'true', BLOCKCACHE => 'true', > MIN_VERSIONS => '0', DATA_BLOCK_ENCODING => 'NONE', > > IN_MEMORY => 'false', BLOOMFILTER => 'NONE', TTL = > > > '2147483647', VERSIONS => '-1', BLOCKSIZE => '655 > > > 36'} > 1 row(s) in 0.0410 seconds > {code} > above example shows VERSIONS => '-1', and put/scan doesn't keep the data -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira