Apache
/
hbase
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

HBASE-2825 Scans respect row locks 

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1003698 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Ryan Rawson 2010-10-01 22:46:15 +00:00
parent 7bb6f3839c
commit e5c4776af9
2 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGES.txt
View File

@ -961,6 +961,7 @@ Release 0.21.0 - Unreleased
HBASE-3019 Make bulk assignment on cluster startup run faster
HBASE-3066 We don't put the port for hregionserver up into znode since
new master
HBASE-2825 Scans respect row locks
NEW FEATURES
HBASE-1961 HBase EC2 scripts

3
src/main/java/org/apache/hadoop/hbase/client/package-info.java
View File

@ -48,7 +48,8 @@ in different formats.
{@link org.apache.hadoop.hbase.client.HTable#delete(Delete)} to execute.
</p>
<p>Puts, Gets and Deletes take out a lock on the target row for the duration of their operation.
Scans (currently) operate without respect for row locks.
Concurrent modifications to a single row are serialized. Gets and scans run concurrently without
interference of the row locks and are guaranteed to not to return half written rows.
</p>
<p>Client code accessing a cluster finds the cluster by querying ZooKeeper.
This means that the ZooKeeper quorum to use must be on the client CLASSPATH.