HBase-1.1.10表备份
HBase-1.1.10表备份
K_Zhiqiang 发表于4个月前
HBase-1.1.10表备份
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##使用CopyTable进行HBase表备份

$HBASE_HOME/bin/hbase org.apache.hadoop.hbase.mapreduce.CopyTable --new.name=newtable --peer.adr=zookeeperhbase.zookeeper.quorum:2181:/hbase oldtable

备份之前,需手动创建newtable,newtable与oldtable表结构完全一致。

####CopyTable更多选项可通过命令查看:

[root@node1 ~]$ hbase org.apache.hadoop.hbase.mapreduce.CopyTable
Usage: CopyTable [general options] [--starttime=X] [--endtime=Y] [--new.name=NEW] [--peer.adr=ADR] <tablename>

Options:
 rs.class     hbase.regionserver.class of the peer cluster
              specify if different from current cluster
 rs.impl      hbase.regionserver.impl of the peer cluster
 startrow     the start row
 stoprow      the stop row
 starttime    beginning of the time range (unixtime in millis)
              without endtime means from starttime to forever
 endtime      end of the time range.  Ignored if no starttime specified.
 versions     number of cell versions to copy
 new.name     new table's name
 peer.adr     Address of the peer cluster given in the format
              hbase.zookeeer.quorum:hbase.zookeeper.client.port:zookeeper.znode.parent
 families     comma-separated list of families to copy
              To copy from cf1 to cf2, give sourceCfName:destCfName.
              To keep the same name, just give "cfName"
 all.cells    also copy delete markers and deleted cells
 bulkload     Write input into HFiles and bulk load to the destination table

Args:
 tablename    Name of the table to copy

Examples:
 To copy 'TestTable' to a cluster that uses replication for a 1 hour window:
 $ bin/hbase org.apache.hadoop.hbase.mapreduce.CopyTable --starttime=1265875194289 --endtime=1265878794289 --peer.adr=server1,server2,server3:2181:/hbase --families=myOldCf:myNewCf,cf2,cf3 TestTable
For performance consider the following general option:
  It is recommended that you set the following to >=100. A higher value uses more memory but
  decreases the round trip time to the server and may increase performance.
    -Dhbase.client.scanner.caching=100
  The following should always be set to false, to prevent writing data twice, which may produce
  inaccurate results.
    -Dmapreduce.map.speculative=false
标签: HBase
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