What Dan said too, he didn't forget the port like I did. Any other
errors other than the stats timeout as well as the output of a riak-
admin status would be useful if you see the problem again.
Grant
On Jun 18, 2010, at 1:16, Dan Reverri <[email protected]> wrote:
Hi Gareth,
If you are just looking for health checks you can use the "/ping"
resource:
http://riak_server:riak_port/ping
Daniel Reverri
Developer Advocate
Basho Technologies, Inc.
[email protected]
On Thu, Jun 17, 2010 at 9:41 PM, Gareth Stokes <[email protected]
> wrote:
Hey Dan,
Sounds like i do need to check some things then.
The load balancer does a health check every 30 seconds.
Going through the monitor logs, the cpu was peaking up to about 60%
which im not too sure if was caused by load or by the riak process
doing whatever it was doing.
And, I do seem to be running pretty high on memory so ill see if i
can lower that by configuring the buffer size on the innostore
backend.
If i see it happening again, ill try and gather more information.
gs
On 18 June 2010 14:15, Dan Reverri <[email protected]> wrote:
Hi Gareth,
I'm not aware of any mechanism that turns the stats url off for any
reason. How often are you pinging the stats url? Do the timeouts
correlate with any other event on the system (higher load, cron job,
etc.)?
Thanks,
Dan
Daniel Reverri
Developer Advocate
Basho Technologies, Inc.
[email protected]
On Thu, Jun 17, 2010 at 8:40 PM, Gareth Stokes <[email protected]
> wrote:
hey guys,
so i have a cluster of 4 physical machines with a load balancer
sitting in front to handle requests going into riak.
i thought it would be a good idea (not anymore) to use the /stats
url to ping the machines the cluster for their health. this is what
i've noticed in the logs every few days or so
=ERROR REPORT==== 16-Jun-2010::03:48:37 ===
webmachine error: path="/stats"
{error,{exit,{timeout,{gen_server2,call,[riak_kv_stat,get_stats]}},
[{gen_server2,call,2},
{riak_kv_wm_stats,get_stats,0},
{riak_kv_wm_stats,produce_body,2},
{webmachine_resource,resource_call,3},
{webmachine_resource,do,3},
{webmachine_decision_core,resource_call,1},
{webmachine_decision_core,decision,1},
{webmachine_decision_core,handle_request,2}]}}
it lasts anywhere between 5 - 40 minutes.
what im thinking is that a riak machine will enter "maintenance"
mode every now and then, when it does it turns the /stats url off.
am i correct in thinking this, or should i be worried?
regards,
gareth stokes
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