On 16/04/13 08:24, Tao (陶信东) wrote:
Hi,
We’ve being using Fuseki/TDB for 2 years. Recently we noticed that
sometimes it was using huge amount of our CPU resources, as can be seen
from the cited email.
I'm afraid that list of threads doesn't tell me anything; maybe someone
else can seee something in the list. No Jena code is mentioned except
for the start up thread (which is hanging around (= "WAITING") doing
nothing). Several threads seem to be reading HTTP requests (in Jetty)
(are the clients being slow?)
What is the setup? (machine size? cores? version of software?)
What has changed recently?
Does it have enough heap (maybe the GC is taking a lot of the time)?
What causes you to think it is consuming a lot of CPU?
Andy
Did anyone encounter the same situations? What is the most probable problem?
Thanks
Tao
*From:*陈仕员[mailto:[email protected]]
*Sent:* Tuesday, April 16, 2013 3:10 PM
*To:* 陶信东
*Cc:* 夏炜
*Subject:* qna00002Fuseki进程cpu很高
jstack 日志：
2013-04-16 15:05:32
