Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Zookeeper, mail # dev - negotiated timeout


Copy link to this message
-
Re: negotiated timeout
Ted Yu 2011-03-24, 22:49
I was looking for 'Created server with tickTime' in zookeeper log but didn't
find any.

hbase used to have the following:
<property>
<name>hbase.zookeeper.property.tickTime</name>
<value>6000</value>
</property>

but 0.90.1 no longer honors it.

I don't know to explain the difference in timeouts:

2011-03-24 20:46:37,881 INFO org.apache.zookeeper.server.NIOServerCnxn:
Established session 0x12ebb99d686dfd4 with negotiated timeout 180000 for
client /10.202.50.103:21705
2011-03-24 20:46:37,882 INFO org.apache.zookeeper.server.NIOServerCnxn:
Established session 0x12ebb99d686dfd5 with negotiated timeout 60000 for
client /10.202.50.114:2552

Regards

On Thu, Mar 24, 2011 at 3:43 PM, Mahadev Konar <[EMAIL PROTECTED]> wrote:

> Hi Ted,
>  The session timeout can be changed by the server depending on min/max
> bounds set on the servers. Are you servers configured to have a max
> timeout of 60 seconds? usually the default is 20 * tickTime. Looks
> like your ticktime is 3 seconds?
>
> thanks
> mahadev
>
>
>
> On Thu, Mar 24, 2011 at 3:20 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> > Hi,
> > hbase 0.90.1 uses zookeeper 3.3.2
> > I specified:
> > <property>
> > <name>zookeeper.session.timeout</name>
> > <value>490000</value>
> > </property>
> >
> > In zookeeper log I see:
> > 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> > Client attempting to establish new session at /10.202.50.111:50325
> > 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> > Established session 0x12ebb99d686a012 with negotiated timeout 60000 for
> > client /10.202.50.112:62386
> > 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> > Client attempting to establish new session at /10.202.50.112:62387
> > 2011-03-24 19:58:09,499 INFO
> > org.apache.zookeeper.server.PrepRequestProcessor: Got user-level
> > KeeperException when processing sessionid:0x12ebb99d686a012 type:create
> > cxid:0x1 zxid:0xfffffffffffffffe txntype:unknown reqpath:n/a Error
> > Path:/hbase Error:KeeperErrorCode = NodeExists for /hbase
> > 2011-03-24 19:58:09,499 INFO org.apache.zookeeper.server.NIOServerCnxn:
> > Established session 0x12ebb99d686a013 with negotiated timeout 60000 for
> > client /10.202.50.111:50324
> >
> > Can someone tell me how the negotiated timeout of 60000 was computed ?
> >
> > Thanks
> >
>