Hrushikesh Agrawal created DIRMINA-1114:
-------------------------------------------
Summary: High CPU utilization because of Mina-core jar
Key: DIRMINA-1114
URL: https://issues.apache.org/jira/browse/DIRMINA-1114
Project: MINA
Issue Type: Bug
Components: Core
Affects Versions: 2.1.2
Reporter: Hrushikesh Agrawal
Attachments: CPUAnalysys.zip
Hi,
We are have our own product through which we are trying to communicate with
LDAP server by using the mina-core-2.1.2.jar and api-all-1.0.3.jar jars. When
we have invalid connection parameter, and tried to get the connection, CPU core
utilization is 100%.
Then we have seen in JVisualVM and in Jprofiler that
"org.apache.mina.transport.socket.nio.NioSocketConnector" is in CPU more time.
We can see below in thread dump-
"NioSocketConnector-3" #152 prio=5 os_prio=0 tid=0x00007f95940d4000 nid=0x77fb
runnable [0x00007f956f1fe000]
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
- locked <0x00000000ebdf89e8> (a sun.nio.ch.Util$3)
- locked <0x00000000ebdf89d8> (a java.util.Collections$UnmodifiableSet)
- locked <0x00000000ebdf88c0> (a sun.nio.ch.EPollSelectorImpl)
at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
at
org.apache.mina.transport.socket.nio.NioSocketConnector.select(NioSocketConnector.java:292)
at
org.apache.mina.core.polling.AbstractPollingIoConnector$Connector.run(AbstractPollingIoConnector.java:433)
at
org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
We can see same issue with standalone java class and try to get the ldap
connection. Attaching couple of snapshot to understand the issue.
Please note this happens in Ubuntu and Centos. Also found same issue with
2.0.21, 2.0.18 mina core jar.
Can someone please help me on this.
Thanks,
Hrushi
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
