> is_unrecoverable() means exactly that: the session is toast. nothing you do
> will get it back.
Ok, I was wondering about what exactly was unrecoverable indeed.
> zookeeper_init is almost never used with a non-null client_id. the main use
> case for it is crash recovery. i've rarely seen it use
is_unrecoverable() means exactly that: the session is toast. nothing you
do will get it back.
zookeeper_init is almost never used with a non-null client_id. the main
use case for it is crash recovery. i've rarely seen it used, but you can
start a session, save off the client_id to disk, create
> why don't you let the client library do the move for you?
Maybe there's no need to reestablish the session manually, but there
are a few details in the API which give a hint this should be
supported. The strongest one is that there's a parameter in
zookeeper_init() to allow reestablishing an ex
ginal Message-
From: Gustavo Niemeyer [mailto:gust...@niemeyer.net]
Sent: Thursday, November 18, 2010 10:16 AM
To: ZooKeeper Users
Subject: How to reestablish a session
Greetings,
As some of you already know, we've been using ZooKeeper at Canonical
for a project we've been pushing
ah i see. you are manually reestablishing the connection to B using the
session identifier for the session with A.
the problem is that when you call "close" on a session, it kills the
session. we don't really have a way to close a handle without do that.
(actually there is a test class that do
> Right now, if you have a partition between client and server A, I would not
> expect
> server A to see a clean close from the client, but one of the various
> exceptions
> that cause the socket to close.
Please don't get me wrong, but I find it very funny to rely on the
stability of a network
Hi Ben,
> that quote is a bit out of context. it was with respect to a proposed
> change.
My point was just that the reasoning why you believed it wasn't a good
approach to kill ephemerals in that old instance applies to the new
cases I'm pointing out. I wasn't suggesting you agreed with my new
that quote is a bit out of context. it was with respect to a proposed
change.
in your scenario can you explain step 4)? what are you closing?
ben
On 11/18/2010 07:16 AM, Gustavo Niemeyer wrote:
Greetings,
As some of you already know, we've been using ZooKeeper at Canonical
for a project we'v
state of the session, and if the client connects elsewhere before
the session timeout, the session will remain active.
C
-Original Message-
From: Gustavo Niemeyer [mailto:gust...@niemeyer.net]
Sent: Thursday, November 18, 2010 10:16 AM
To: ZooKeeper Users
Subject: How to reestablish a
Greetings,
As some of you already know, we've been using ZooKeeper at Canonical
for a project we've been pushing (Ensemble, http://j.mp/dql6Fu).
We've already written down txzookeeper (http://j.mp/d3Zx7z), to
integrate the Python bindings with Twisted, and we're also in the
process of creating a G
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