Liu Shaohui created HBASE-15391: ----------------------------------- Summary: Avoid too large "deleted from META" info log Key: HBASE-15391 URL: https://issues.apache.org/jira/browse/HBASE-15391 Project: HBase Issue Type: Improvement Reporter: Liu Shaohui Assignee: Liu Shaohui Priority: Minor Fix For: 2.0.0
When deleting a large table in HBase, there will be a large info log in HMaster. {code} 2016-02-29,05:58:45,920 INFO org.apache.hadoop.hbase.catalog.MetaEditor: Deleted [{ENCODED => 4b54572150941cd03f5addfdeab0a754, NAME => 'YCSBTest,,1453186492932.4b54572150941cd03f5addfdeab0a754.', STARTKEY => '', ENDKEY => 'user01'}, {ENCODED => 715e142bcd6a31d7842abf286ef8a5fe, NAME => 'YCSBTest,user01,1453186492933.715e142bcd6a31d7842abf286ef8a5fe.', STARTKEY => 'user01', ENDKEY => 'user02'}, {ENCODED => 5f9cef5714973f13baa63fba29a68d70, NAME => 'YCSBTest,user02,1453186492933.5f9cef5714973f13baa63fba29a68d70.', STARTKEY => 'user02', ENDKEY => 'user03'}, {ENCODED => 86cf3fa4c0a6b911275512c1d4b78533, NAME => 'YCSBTest,user0... {code} The reason is that MetaTableAccessor will log all regions when deleting them from meta. See, MetaTableAccessor.java#deleteRegions {code} public static void deleteRegions(Connection connection, List<HRegionInfo> regionsInfo, long ts) throws IOException { List<Delete> deletes = new ArrayList<Delete>(regionsInfo.size()); for (HRegionInfo hri: regionsInfo) { Delete e = new Delete(hri.getRegionName()); e.addFamily(getCatalogFamily(), ts); deletes.add(e); } deleteFromMetaTable(connection, deletes); LOG.info("Deleted " + regionsInfo); } {code} Just change the info log to debug and add a info log about the number of deleted regions. Others suggestions are welcomed~ -- This message was sent by Atlassian JIRA (v6.3.4#6332)