Hi all.
I have a question. I started zookeeper(3.2.2) on three servers.
When session expired event fired in following code?
I expected that if client can't connect to server(disconnected) for session
timeout, zookeeper fires session expired event.
I killed three zookeeper server sequentially. Clien
Hi,
a zookeeper client does not expire a session until and unless it is able to
connect to one of the servers. In your case if you kill all the servers, the
client is not able to connect to any of the servers and will keep trying to
connect to the three servers. It cannot expire a session on its o
Thanks for your quick answer.
I will make cluster member ship service using zookeeper.
If a node in a cluster can't connect to zookeeper cluster, the node killed
by oneself (like google bigtables' tabletserver).
If no session expired, client check disconnected time.
Any idea or usage for cluster me
Here's one that I know of that's open - LinkedIn's Norbert
http://wiki.github.com/rhavyn/norbert/
Patrick
neptune wrote:
Thanks for your quick answer.
I will make cluster member ship service using zookeeper.
If a node in a cluster can't connect to zookeeper cluster, the node killed
by oneself (
i was looking through the docs to see if we talk about handling session
expired, but i couldn't find anything. we should probably open a jira to add to
the docs, unless i missed something. did i?
ben
-Original Message-
From: Mahadev Konar [mailto:maha...@yahoo-inc.com]
Sent: Monday, Fe
this? "How should I handle SESSION_EXPIRED?"
http://wiki.apache.org/hadoop/ZooKeeper/FAQ#A3
Benjamin Reed wrote:
i was looking through the docs to see if we talk about handling session
expired, but i couldn't find anything. we should probably open a jira to add to
the docs, unless i missed som
I saw that wiki page. And I read this paragraph "It means that the client
was partitioned off from the ZooKeeper service for more the the session
timeout ..."
That's why I use Expired event for cluster membership. In my case client is
a node in a cluster.
2010/2/9 Patrick Hunt
> this? "How shoul
Hi all,
Here's DisconnectedTimeoutHandler sample code. I thought Session Expired is
similar DisconnectedTimeoutHandler.
*public class WatcherTest implements Watcher {
private static final String ZK_HOSTS = "127.0.0.1:2181,127.0.0.1:2182,
127.0.0.1:2183";
private static final int ZK_SESSION_TI
In this case all of the _other_ zookeeper clients will see the client
session is closed (actually they see any ephemeral znodes that the
client created are removed, which is typically what you do for group
membership - create an ephemeral znode that represents your client, a
member of the clust
No, disconnected means that you don't have a connection to the cluster,
it does not inform the status of the session. The expired indicates that
the session itself is no longer valid (and therefore any ephemerals are
cleaned up).
Perhaps this is one area we should work on wrt the docs, ensurin
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