OOM errors from a previously working Samurai instance - Win XP

[Gokhan]

Hi Yusuke,

I wonder if you have faced OOM errors before, when running Samurai.
Previously I was not using any arguments, but for sometime Samurai
does not start, now I use even -Xms1280m -Xmx1280m but still getting

Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
Saving configuration.[C:\Documents and Settings\gokhan.celik
\.samurai.properties]

When I look at this properties file, it is about 20mb btw, the line is
like going forever:

RecentlyUsedFiles=D\:\\cases\\Stuck threads16122009\\hogging threads\
\problem yasaniyorken\\combinedTD.txt\:D\:\\win-utilities\\samurai\\C
\:D\:\\Do.....
\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D
\:\\win-utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\
\win-utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai\\D\:D\:\\win-
utilities\\samurai\\D\:D\:\\win-utilities\\samurai.........

It seems some recursive function is triggered, is there a bug here?
And also there is a high cpu observed when running, avg %80-90

Thanks,

Gokhan Celik

[Yusuke Yamamoto]

Hi,

That's a known issue I need to work on.
Currently Samurai hold every single line on memory and that causes OOM when you pass large files.
Here's an another version of samurai with a quick and dirty solution.
http://yusuke.homeip.net/samurai/samurai-oomfree.jar
This one holds only latest 100 lines of reference on memory and you won't hit OOM.
If you're using Samurai as a thread dump analyzer, this version may work for you.

Cheers,
--
Yusuke Yamamoto
yus...@mac.com

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