HBase删除列族报错怎么办
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今天做实验,删除member表某一列的时候,报错
hbase(main):003:0> alter 'member','delete'=>'info'
ERROR: org.apache.hadoop.hbase.TableNotDisabledException: org.apache.hadoop.hbase.TableNotDisabledException: member
at org.apache.hadoop.hbase.master.HMaster.checkTableModifiable(HMaster.java:1217)
at org.apache.hadoop.hbase.master.handler.TableEventHandler.
at org.apache.hadoop.hbase.master.handler.TableDeleteFamilyHandler.
at org.apache.hadoop.hbase.master.HMaster.deleteColumn(HMaster.java:1125)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.hbase.ipc.WritableRpcEngine$Server.call(WritableRpcEngine.java:364)
at org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:1326)
解决方案:先disable这张表:
hbase(main):005:0> disable 'member'
0 row(s) in 2.1560 seconds
然后再删除:
hbase(main):006:0> alter 'member', 'delete' => 'info'
Updating all regions with the new schema...
1/1 regions updated.
Done.
0 row(s) in 1.3370 seconds
查看表情况:
hbase(main):011:0> describe 'member'
DESCRIPTION ENABLED
{NAME => 'member', FAMILIES => [{NAME => 'address', BLOOMFILTER => 'NONE', REPLICATION_SCO true
PE => '0', VERSIONS => '3', COMPRESSION => 'NONE', MIN_VERSIONS => '0', TTL => '2147483647
', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}, {NAME => 'member_id'
, BLOOMFILTER => 'NONE', REPLICATION_SCOPE => '0', VERSIONS => '3', COMPRESSION => 'NONE',
MIN_VERSIONS => '0', TTL => '2147483647', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLO
CKCACHE => 'true'}]}
1 row(s) in 0.0140 seconds
我们可以发现member表的info字段已经被删除了。
最后记得要启用表:
hbase(main):009:0> enable 'member'
0 row(s) in 2.2330 seconds
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