Hi Chen, Let's say that the value of a znode /test is initially v
and client A writes value v' to znode /test. If the server that
client B is connected to has not persisted the update operation of A,
it will read v. If it submits sync before the read, client B will read
v'.
-Flavio
On
Hi Chen, this section of the docs has details on our guarantees, in
particular see the note:
http://hadoop.apache.org/zookeeper/docs/current/zookeeperProgrammers.html#ch_zkGuarantees
Patrick
On 04/29/2010 07:42 AM, Flavio Junqueira wrote:
Hi Chen, Let's say that the value of a znode /test is
Hi,
Well looks like FastLeaderElection.shutdown() is not invoked. This has been
in 3.3.0. Should have checked on that earlier :-)
On Thu, Apr 29, 2010 at 10:13 AM, Vishal K vishalm...@gmail.com wrote:
Hi Ted,
We want the application that embeds the ZK server to be running even after
the ZK
In general, the guarantee is that B will do exactly as you say it will
read the new value or the old value. Your question depends on a definition
of now that spans several machines. That is a dangerous concept and if
your reasoning requires it, you are headed for trouble.
On Thu, Apr 29,
Is there any good (simple/fast/bulletproof) way to monitor the FD use
inside the jvm? If so we could stop accepting new client connections
once we get close to the os imposed limit... The test would have to be a
bulletproof one though - we wouldn't want to end up in some worse
situation (where
Ted, this is my browser homepage ;-)
http://en.wikipedia.org/wiki/Fallacies_of_Distributed_Computing
Patrick
On 04/29/2010 09:14 AM, Ted Dunning wrote:
In general, the guarantee is that B will do exactly as you say it will
read the new value or the old value. Your question depends on a
On Thu, Apr 29, 2010 at 9:49 AM, Patrick Hunt ph...@apache.org wrote:
Is there any good (simple/fast/bulletproof) way to monitor the FD use inside
the jvm? If so we could stop accepting new client connections once we get
close to the os imposed limit... The test would have to be a bulletproof
I tend to say that the cost of Now scales very badly with the diameter of
the Now that you are buying. A 5 cm Now is quite cheap. A 10 m Now is
quite expensive and the cost of a 1000 km Now is more than you can imagine.
On Thu, Apr 29, 2010 at 9:55 AM, Patrick Hunt ph...@apache.org wrote:
We do set that Chad but it doesn't seem to help on some systems (especially
bsd)...
Thanks
mahadev
On 4/29/10 11:22 AM, Chad Harrington chad.harring...@gmail.com wrote:
On Thu, Apr 29, 2010 at 8:49 AM, Patrick Hunt ph...@apache.org wrote:
This is not foolproof however. We found that in
On 04/29/2010 11:22 AM, Chad Harrington wrote:
On Thu, Apr 29, 2010 at 8:49 AM, Patrick Huntph...@apache.org wrote:
This is not foolproof however. We found that in general this would work,
however there were some infrequent cases where a restarted server would fail
to initialize due to the
On Thu, 29 Apr 2010 13:24:45 -0700
Mahadev Konar maha...@yahoo-inc.com wrote:
Hi Kevin,
I had the response set up but didn't hit send. Ted already answered
your question, but to give you a more technical background assuming
that you know a little bit more about transaction ids in ZooKeeper
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