I opened HBASE-2342 to discuss the watchdog node concept.
-Todd
On Wed, Mar 17, 2010 at 2:59 PM, Todd Lipcon wrote:
> Hi Ryan,
>
> I think the idea of a secondary watchdog node is a decent one, but as you
> mentioned, it isn't a solution for the problem at hand. The RC pause
> exacerbates the p
Hi Ryan,
I think the idea of a secondary watchdog node is a decent one, but as you
mentioned, it isn't a solution for the problem at hand. The RC pause
exacerbates the problem, but network blips, etc, can cause the same problem.
Is there a JIRA open for the watchdog process? I think we should dis
There are 2 ways to lose your ZK session:
- you dont send pings back to ZK and it expires it (GC pause of death,
network disconnect, etc)
- ZK "somehow" expires your session for you. I have seen this once in
a while, its rare, but painful when it happens. It didn't seem to be
correlated to GC paus
On Wed, Mar 17, 2010 at 10:48 AM, Ryan Rawson wrote:
> I have a 4th option :-) I'm on the his right now and ill write it up when
> I
> get to work. In short move the zk thread out of the rs into a monitoring
> parent and then you can explicitly monitor for Juliet gc pauses. More to
> come
>
I have a 4th option :-) I'm on the his right now and ill write it up when I
get to work. In short move the zk thread out of the rs into a monitoring
parent and then you can explicitly monitor for Juliet gc pauses. More to
come
On Mar 17, 2010 10:22 AM, "Karthik Ranganathan"
wrote:
Loved the
