Hi,
I have a question about zookeeper sessions (within a cluster). I've noticed in
our production servers that some of our clients lose connection to zookeeper
then our client application comes down (and we automatically bring it back and
it reconnects to zk just fine). It seems to be a sessio
On 12/4/2017 8:22 AM, Anthony Shaya wrote:
My question is related to how session expiration works, I noticed on many of
the client machines the times across these machines were all off (by anywhere
from 1 minute to 20 minutes - which was resolved after discovery - haven't
verified this complet
Thanks Shawn, should I message the developer mailing list for a more definitive
answer?
Thanks again for the reply.
-Original Message-
From: Shawn Heisey [mailto:apa...@elyograg.org]
Sent: Monday, December 4, 2017 2:49 PM
To: user@zookeeper.apache.org
Subject: Re: Zookeeper session
On 12/4/2017 12:51 PM, Anthony Shaya wrote:
Thanks Shawn, should I message the developer mailing list for a more definitive
answer?
The ZK dev list is for discussion around the development of ZK itself,
NOT for development of software that uses ZK. For the latter kind of
development, you wa
gt; To: user@zookeeper.apache.org
> Subject: Re: Zookeeper session expiration
>
> On 12/4/2017 8:22 AM, Anthony Shaya wrote:
> > My question is related to how session expiration works, I noticed on many
> > of the client machines the times across these machines were all off (by
Thanks Shawn, should I message the developer mailing list for a more
>> definitive answer?
>>
>> Thanks again for the reply.
>>
>> -Original Message-
>> From: Shawn Heisey [mailto:apa...@elyograg.org]
>> Sent: Monday, December 4, 2017 2:49 PM
>>
2017, at 11:51, Anthony Shaya wrote:
> >> Thanks Shawn, should I message the developer mailing list for a more
> >> definitive answer?
> >>
> >> Thanks again for the reply.
> >>
> >> -Original Message-
> >> From: Shawn Heisey [
apache.org]
Sent: Wednesday, December 06, 2017 5:18 PM
To: UserZooKeeper
Subject: Re: Zookeeper session expiration
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W
ednesday, December 06, 2017 5:18 PM
> To: UserZooKeeper
> Subject: Re: Zookeeper session expiration
>
> {External email message: This email is from an external source. Please
> exercise caution prior to opening attachments, clicking on links, or
> providing any sensitive informat
, December 7, 2017 8:48 AM
To: user@zookeeper.apache.org
Subject: Re: Zookeeper session expiration
System.nanoTime() is not affected by clock changes. Really everyone - this is
simply not an issue in ZooKeeper.
Jordan Zimmerman
> On Dec 7, 2017, at 7:43 AM, Kathryn Hogg wr
we use ntp with adjtime to avoid clocks going
> backwards or making large jumps forward.
> >
> > -Original Message-
> > From: Patrick Hunt [mailto:ph...@apache.org]
> > Sent: Wednesday, December 06, 2017 5:18 PM
> > To: UserZooKeeper
> > Subject:
I am facing a similar issue in my application.
Zookeeper Server Version 3.5.5
I implemented SSL ( server to server ) in quorum communication.
After that ZK client frequently receives session timeouts.
When I turned off SSL then application is behaving normally and there are no
timeouts.
Any t
Hello,
can you reproduce the problem with the latest 3.5 version? I mean 3.5.8.
There were a few bugfixes recently that can help. e.g.:
https://issues.apache.org/jira/browse/ZOOKEEPER-3756
Also you can try to increase some timeout parameters, see
https://zookeeper.apache.org/doc/r3.5.8/zookeeperAd
Currently our production is running with 3.5.5 and it will take time to
move to 3.6.1.
When I dig more into this it seems to be related to Netty protocol and it’s
limitation. The system is stable when I fail back to NIO and without SSL.
As soon as I turned on Netty we are seeing sessions getting
Hi everybody,
I have an issue on testing ZooKeeper's session expiration.
Basically, I am using the chunk of code below to make a "target"
ZooKeeper handle expire:
...
final ZooKeeper zk = new ZooKeeper(zkAddress , zkTimeout, new Watcher() {
@Override
pub
Are you sure serviceZKSessionId is valid?
-Flavio
> On 13 Apr 2016, at 08:39, Matteo Casadei - Diennea
> wrote:
>
> Hi everybody,
>
> I have an issue on testing ZooKeeper's session expiration.
>
> Basically, I am using the chunk of code below to make a "target"
> ZooKeeper handle expire:
>
y sort.
Any help is going to be appreciated.
Thanks again,
Matteo
-Messaggio originale-
Da: Flavio Junqueira [mailto:f...@apache.org]
Inviato: mercoledì 13 aprile 2016 10:20
A: user@zookeeper.apache.org
Oggetto: Re: Code to Simulate ZooKeeper Session Expiration does not Work
Are you
aggio originale-
Da: Matteo Casadei - Diennea [mailto:matteo.casa...@diennea.com]
Inviato: mercoledì 13 aprile 2016 11:09
A: user@zookeeper.apache.org
Oggetto: R: Code to Simulate ZooKeeper Session Expiration does not Work
Hi Flavio,
thanks for replying.
Yes, pretty much sure serviceZKSess
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