Sorry, but there isn’t much else to be said without additional data. If consistent usage of resources on that host is important, I suggest to setup some monitoring so that if it happens again there’ll be at least some place to start.
Stan From: shawn.du Sent: 11 июня 2018 г. 16:34 To: [email protected] Cc: [email protected] Subject: Re: ignite server cpu is high the server is a dedicate ignite server。i am sure it is ignite consume cpu. I can’t get more info now, the cpu issue is gone as now there are very few traffic on our system. For our case,we store data into ignite every 30 seconds. If no query, the cpu should be very low. But yesterday it is a exception. Very strange. shawn.du 邮箱：[email protected] Signature is customized by Netease Mail Master On 06/11/2018 17:43, Stanislav Lukyanov wrote: How do you monitor your CPU usage? Do you know which processes consume CPU? Are you sure it is Ignite’s process? Is CPU consumed more in user space or in system space? Can you share the actual stats? >From what I see in the thread dump, there is at least some activity on this >Ignite: sys-stripe-5-#6 thread is processing an update. In any case, that thread is the only one in the JVM that is actually performing some work, so I’d assume that the CPU load comes from other processes. Thanks, Stan From: shawn.du Sent: 11 июня 2018 г. 5:38 To: user Subject: ignite server cpu is high Hi Community, My single-node ignite cluster has started since Apr 23. In past couple weeks, It worked fine. For our case, Ignite server's CPU is very low at most time with exception that there are complex/concurrent queries. event in case of query, ignite server's CPU will be high for a very short while. I think all above is normal behavior. But yesterday, ignite server's CPU keep high for a long time event we don't have query. I use jstack to dump the threads(see the attachment), We don't find any our business code. please help and thanks in advance. We use ignite 2.3.0. java version "1.8.0_151" Java(TM) SE Runtime Environment (build 1.8.0_151-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode) Thanks Shawn
