The latest docs (3.1.0 has some updates to that section) can be found here:
http://hadoop.apache.org/zookeeper/docs/r3.1.0/zookeeperProgrammers.html#ch_zkSessions
Patrick
Mahadev Konar wrote:
Hi Joey,
here is a link to information on session timeouts.
http://hadoop.apache.org/zookeeper/docs/r3.0.1/zookeeperProgrammers.html#ch_
zkSessions
The session timeouts depends on how sensitive you want your application to
be. A very low session timeout like (1-2 seconds) might lead to your
application being very sensitive to events like minor network problems etc.,
a higher values of say (30 seconds) on the other hand might lead to slow
detection of client failures -- example one of the zookeeper client which
has ephemeral node goes down, in this case the ephemeral nodes will only go
away after session timeout.
I have seen some users using 10-15 seconds of session timeout, but you
should use as per your application requirements.
Hope this helps.
mahadev
On 2/22/09 3:09 AM, "Joey Echeverria" <joe...@gmail.com> wrote:
Is there a recommended session timeout? Does it change based on the
ensemble size?
Thanks,
-Joey
