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HBASE-1997 zk tick time bounds maximum zk session time 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@883190 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Michael Stack 2009-11-22 23:39:18 +00:00
parent 41bfe09a49
commit e7ee750f6c
2 changed files with 13 additions and 6 deletions
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1
CHANGES.txt
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@ -116,6 +116,7 @@ Release 0.21.0 - Unreleased
Purtell) Purtell)
HBASE-1999 When HTable goes away, close zk session in shutdown hook or HBASE-1999 When HTable goes away, close zk session in shutdown hook or
something... something...
HBASE-1997 zk tick time bounds maximum zk session time
IMPROVEMENTS IMPROVEMENTS
HBASE-1760 Cleanup TODOs in HTable HBASE-1760 Cleanup TODOs in HTable

18
conf/hbase-default.xml
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@ -386,10 +386,15 @@
<property> <property>
<name>zookeeper.session.timeout</name> <name>zookeeper.session.timeout</name>
<value>60000</value> <value>60000</value>
<description>ZooKeeper session timeout. This option is not used by HBase <description>ZooKeeper session timeout.
directly, it is for the internals of ZooKeeper. HBase merely passes it in HBase passes this to the zk quorum as suggested maximum time for a
whenever a connection is established to ZooKeeper. It is used by ZooKeeper session. See http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#ch_zkSessions
for hearbeats. In milliseconds. "The client sends a requested timeout, the server responds with the
timeout that it can give the client. The current implementation
requires that the timeout be a minimum of 2 times the tickTime
(as set in the server configuration) and a maximum of 20 times
the tickTime." Set the zk ticktime with hbase.zookeeper.property.tickTime.
In milliseconds.
</description> </description>
</property> </property>
<property> <property>
@ -472,9 +477,10 @@
--> -->
<property> <property>
<name>hbase.zookeeper.property.tickTime</name> <name>hbase.zookeeper.property.tickTime</name>
<value>2000</value> <value>3000</value>
<description>Property from ZooKeeper's config zoo.cfg. <description>Property from ZooKeeper's config zoo.cfg.
The number of milliseconds of each tick. The number of milliseconds of each tick. See
zookeeper.session.timeout description.
</description> </description>
</property> </property>
<property> <property>