Collect details of java threads in a REDHAT Linux server

Asked Jul 03 '20 at 14:13

Active Jul 03 '20 at 14:13

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I need to collect details of java threads in a REDHAT Linux server but i cannot use JDK or update the java because the applications requisites a specific version. Java running on linux server is 1.6.0_45.

They are consuming a lot of memory and CPU

Some advises to get these Thread details using only Linux commands? Thank you.

asked Jul 03 '20 at 14:13

Codeman

Check if there is a signal you Can send the process to create a thread dump – Thorbjørn Ravn Andersen Jul 03 '20 at 14:26
Hi ThorBjorn, thank you for your reply, =) Can you tell more more about "signals"? How can I use this for get the thread dump? – Codeman Jul 03 '20 at 14:50
Are you talking about kill -3 ? I tried but i didn't find this thread dump in no one folder. – Codeman Jul 03 '20 at 15:03
The thread dump goes to the standard output of the JVM process. – Stephen C Jul 03 '20 at 16:06
1

Java 1.6.0_45 is horribly out of date. Java 6 was EOL on 2013-04-16. That is 7 years of security patches, performance updates, etc that you are running. – Stephen C Jul 03 '20 at 16:10
@StephenC isn’t it quite clear this is a very legacy system. – Thorbjørn Ravn Andersen Jul 04 '20 at 09:03
Yes. It is clear to you and me. But it is not necessarily clear to the OP just how close to a black hole this system is. – Stephen C Jul 04 '20 at 13:53

Collect details of java threads in a REDHAT Linux server

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