Index: src/docbkx/ops_mgt.xml =================================================================== --- src/docbkx/ops_mgt.xml (revision 1325336) +++ src/docbkx/ops_mgt.xml (working copy) @@ -148,7 +148,24 @@ This page currently exists on the website and will eventually be migrated into the RefGuide. -\
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+ WALPlayer + WALPlayer is a utility to replay WAL files into HBase. + + The WAL can be replayed for a set of tables or all tables, and a timerange can be provided (in milliseconds). The WAL is filtered to this set of tables. The output can optionally be mapped to another set of tables. + + WALPlayer can also generate HFiles for later bulk importing, in that case only a single table and no mapping can be specified. + + Invoke via: +$ bin/hbase org.apache.hadoop.hbase.mapreduce.WALPlayer [options] <wal inputdir> <tables> [<tableMappings>]> + + + For example: +$ bin/hbase org.apache.hadoop.hbase.mapreduce.WALPlayer /backuplogdir oldTable1,oldTable2 newTable1,newTable2 + + +
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RowCounter RowCounter is a utility that will count all the rows of a table. This is a good utility to use as a sanity check to ensure that HBase can read all the blocks of a table if there are any concerns of metadata inconsistency.