: Benjamin Reed [mailto:br...@yahoo-inc.com]
Sent: Wednesday, September 08, 2010 4:03 PM
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
unfortunately, that only works on the standalone server.
ben
On 09/08/2010 12:52 PM, Fournier, Camille
@hadoop.apache.org
Cc: Benjamin Reed
Subject: Re: closing session on socket close vs waiting for timeout
This really is, just as Ben says a problem of false positives and false
negatives in detecting session
expiration.
On the other hand, the current algorithm isn't really using all the
information
]
Sent: Wednesday, September 08, 2010 4:03 PM
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
unfortunately, that only works on the standalone server.
ben
On 09/08/2010 12:52 PM, Fournier, Camille F. [Tech] wrote:
This would be the ideal
To: Fournier, Camille F. [Tech]
Cc: 'zookeeper-user@hadoop.apache.org'
Subject: Re: closing session on socket close vs waiting for timeout
the problem is that followers don't track session timeouts. they track
when they last heard from the sessions that are connected to them
A switch failure could do that, I think.
On Fri, Sep 10, 2010 at 1:49 PM, Fournier, Camille F. [Tech]
camille.fourn...@gs.com wrote:
I am not a networking expert, but in my experience I've seen network
glitches that cause sockets to appear to be live that are actually dead, but
not
of actual code in this email)
-Original Message-
From: Ted Dunning [mailto:ted.dunn...@gmail.com]
Sent: Tuesday, September 07, 2010 1:11 PM
To: zookeeper-user@hadoop.apache.org
Cc: Benjamin Reed
Subject: Re: closing session on socket close vs waiting for timeout
This really is, just as Ben
@hadoop.apache.org
Cc: Benjamin Reed
Subject: Re: closing session on socket close vs waiting for timeout
This really is, just as Ben says a problem of false positives and false
negatives in detecting session
expiration.
On the other hand, the current algorithm isn't really using all the
information available
(forgive lack of actual code in this email)
-Original Message-
From: Ted Dunning [mailto:ted.dunn...@gmail.com]
Sent: Tuesday, September 07, 2010 1:11 PM
To: zookeeper-user@hadoop.apache.org
Cc: Benjamin Reed
Subject: Re: closing session on socket close vs waiting for timeout
.
Thanks,
C
-Original Message-
From: Ted Dunning [mailto:ted.dunn...@gmail.com]
Sent: Wednesday, September 08, 2010 4:51 PM
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
To get it to work in a cluster, what would be necessary
, August 31, 2010 1:14 PM
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
I think he's saying that if the socket closes because of a crash (i.e.
not a
normal zookeeper close request) then the session stays alive until the
session timeout
for.
Thanks,
Camille
-Original Message-
From: Dave Wright [mailto:wrig...@gmail.com]
Sent: Tuesday, August 31, 2010 1:14 PM
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
I think he's saying that if the socket closes because of a crash
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
I think he's saying that if the socket closes because of a crash (i.e. not a
normal zookeeper close request) then the session stays alive until the
session timeout, which is of course true since
: closing session on socket close vs waiting for timeout
I think he's saying that if the socket closes because of a crash (i.e.
not a
normal zookeeper close request) then the session stays alive until the
session timeout, which is of course true since ZK allows reconnection and
resumption
I think he's saying that if the socket closes because of a crash (i.e. not a
normal zookeeper close request) then the session stays alive until the
session timeout, which is of course true since ZK allows reconnection and
resumption of the session in case of disconnect due to network issues.
-Original Message-
From: Dave Wright [mailto:wrig...@gmail.com]
Sent: Tuesday, August 31, 2010 1:14 PM
To: zookeeper-user@hadoop.apache.org
Subject: Re: closing session on socket close vs waiting for timeout
I think he's saying that if the socket closes because of a crash (i.e
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