> On 2010-08-10 10:49:06, stack wrote: > > src/main/java/org/apache/hadoop/hbase/HSnapshotDescriptor.java, line 36 > > <http://review.cloudera.org/r/467/diff/3/?file=6001#file6001line36> > > > > Drop the H. Call it SnapshotDescriptor
Alright > On 2010-08-10 10:49:06, stack wrote: > > src/main/java/org/apache/hadoop/hbase/HSnapshotDescriptor.java, line 41 > > <http://review.cloudera.org/r/467/diff/3/?file=6001#file6001line41> > > > > If it is in under the snapshot directory maybe just call this file > > snapshotinfo? Drop the '.' prefix. The '.' prefix is usually to demark > > 'special' files we don't want to consider as part of normal operation. In > > this case, we are under a snapshot directory, already outside of 'normal' > > operation. This is named following .regioninfo > On 2010-08-10 10:49:06, stack wrote: > > src/main/java/org/apache/hadoop/hbase/HRegionInfo.java, line 373 > > <http://review.cloudera.org/r/467/diff/3/?file=6000#file6000line373> > > > > How often is this called? If it happens alot, it could add up -- be > > expensive. Not too much actually. This method is only called in BaseScanner when reference rows in META are checked and synchronized with the reference files. And right now there would be at most five rows to be checked in one scan of META. There is no region info saved in each reference row. Thus reference row which is a combination of SNAPSHOT_PREFIX and region name is parsed to obtain the region name. That's why we need this method. - Chongxin ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/467/#review800 ----------------------------------------------------------- On 2010-08-09 03:52:11, Chongxin Li wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > http://review.cloudera.org/r/467/ > ----------------------------------------------------------- > > (Updated 2010-08-09 03:52:11) > > > Review request for hbase. > > > Summary > ------- > > This patch includes the first three sub-tasks of HBASE-50: > 1. Start and monitor the creation of snapshot via ZooKeeper > 2. Create snapshot of an HBase table > 3. Some existing functions of HBase are modified to support snapshot > > Currently snapshots can be created as expected, but can not be restored or > deleted yet > > > This addresses bug HBASE-50. > http://issues.apache.org/jira/browse/HBASE-50 > > > Diffs > ----- > > src/main/java/org/apache/hadoop/hbase/HConstants.java c77ebf5 > src/main/java/org/apache/hadoop/hbase/HRegionInfo.java ee94690 > src/main/java/org/apache/hadoop/hbase/HSnapshotDescriptor.java PRE-CREATION > src/main/java/org/apache/hadoop/hbase/HTableDescriptor.java 0d57270 > src/main/java/org/apache/hadoop/hbase/SnapshotExistsException.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/TablePartialOpenException.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/client/HBaseAdmin.java 8b01aa0 > src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java ed12e7a > src/main/java/org/apache/hadoop/hbase/io/HbaseObjectWritable.java 85fde3a > src/main/java/org/apache/hadoop/hbase/io/Reference.java 219203c > src/main/java/org/apache/hadoop/hbase/io/hfile/HFile.java b2de7e4 > src/main/java/org/apache/hadoop/hbase/ipc/HBaseRPCProtocolVersion.java > d4bcbed > src/main/java/org/apache/hadoop/hbase/ipc/HMasterInterface.java bd48a4b > src/main/java/org/apache/hadoop/hbase/mapreduce/LoadIncrementalHFiles.java > 1183584 > src/main/java/org/apache/hadoop/hbase/master/BaseScanner.java 69eab39 > src/main/java/org/apache/hadoop/hbase/master/DeleteSnapshot.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/master/HMaster.java e4bd30d > src/main/java/org/apache/hadoop/hbase/master/LogsCleaner.java 9d1a8b8 > src/main/java/org/apache/hadoop/hbase/master/RestoreSnapshot.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/master/SnapshotLogCleaner.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/master/SnapshotMonitor.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/master/SnapshotOperation.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/master/SnapshotTracker.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/master/TableDelete.java 1153e62 > src/main/java/org/apache/hadoop/hbase/master/TableSnapshot.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java 6dc41a4 > src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java > 6a54736 > src/main/java/org/apache/hadoop/hbase/regionserver/SnapshotThread.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/regionserver/Store.java ae9e190 > src/main/java/org/apache/hadoop/hbase/regionserver/StoreFile.java 757a50c > src/main/java/org/apache/hadoop/hbase/regionserver/ZKSnapshotWatcher.java > PRE-CREATION > src/main/java/org/apache/hadoop/hbase/regionserver/wal/HLog.java 9593286 > > src/main/java/org/apache/hadoop/hbase/replication/master/ReplicationLogCleaner.java > 4d4b00a > src/main/java/org/apache/hadoop/hbase/util/FSUtils.java 5cf3481 > src/main/java/org/apache/hadoop/hbase/zookeeper/ZooKeeperWrapper.java > 3827fa5 > src/main/resources/hbase-default.xml b73f0ff > src/test/java/org/apache/hadoop/hbase/HBaseTestingUtility.java 4d09fe9 > src/test/java/org/apache/hadoop/hbase/client/TestAdmin.java c9b78b9 > src/test/java/org/apache/hadoop/hbase/master/TestSnapshot.java PRE-CREATION > src/test/java/org/apache/hadoop/hbase/master/TestSnapshotFailure.java > PRE-CREATION > src/test/java/org/apache/hadoop/hbase/regionserver/TestCompaction.java > 34b8044 > src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java 98bd3e5 > src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegionSnapshot.java > PRE-CREATION > src/test/java/org/apache/hadoop/hbase/regionserver/TestStoreFile.java > 38ef520 > > src/test/java/org/apache/hadoop/hbase/regionserver/TestZKSnapshotWatcher.java > PRE-CREATION > > Diff: http://review.cloudera.org/r/467/diff > > > Testing > ------- > > Unit tests and integration tests with mini cluster passed. > > > Thanks, > > Chongxin > >
