full GC running for longer time

[Former Member]

hi Team,

We are running SLD on separate hardware with Windows 2003. But since couple of months we been observing that 'full GC taking longer time' then it used to be. So wondering what are the possible parameters, configuration items that i need to look back to find tune this issue.

any good reference docs related to find tuning the GC is much appriciated.

Thanks

Sekhar

[Former Member]

resolved

[Former Member]

I have three basic suggestions.

1. Decrease your heap size. This will make the GC shorter but more frequent.

2. Increase the heap size to some huge number. This will make it take longer but run infrequently.

3. Use the java option to never do GC on the java startup and then force GC on a daily basis when the system is relatively unused. This also requires increasing the heap size. You may need to have a developer write something to force GC. In smaller companies, you can just restart J2ee each night but that seems like cheating.

hth

[Former Member]

Hello Sekhar,

Refer to notes 1005457 and 990115

1005457 talks about the parameter settings for GC

Hope it helps

Rohit