[Wrapper-user] -verbose:gc and wrapper log extra new lines

[Jakob E. <jak...@gm...>]

Hi,

We are using the tanuki wrapper together with TCserver/tomcat and want
to have -verbose:gc to the wrapper log. We used to log to specific
file but this was overwritten during every jvm restart. Somewhat
explained in this post,
http://stackoverflow.com/questions/3822097/rolling-garbage-collector-logs-in-java.

But now we are facing another problem. The wrapper-log is sometimes
adding new lines in the middle of a gc log statement. Is this a flush
issue?
How can I prevent this in the wrapper log?

INFO   | jvm 1    | 2011/05/26 04:49:22 | [GC
1868705K->610204K(6134208K), 0.0062318 secs]
INFO   | jvm 1    | 2011/05/26 04:51:04 | [GC
1868572K->610487K(6134208K), 0.0055004 secs]
INFO   | jvm 1    | 2011/05/26 04:53:03 | [GC
1868855K->610658K(6134208K), 0.0042818 secs]
INFO   | jvm 1    | 2011/05/26 04:54:21 | [GC
1869026K->610890K(6134208K), 0.0049682 secs]
INFO   | jvm 1    | 2011/05/26 04:55:36 | [GC
1869258K->611066K(6134208K), 0.0054197 secs]
INFO   | jvm 1    | 2011/05/26 04:56:45 | [GC
1869434K->611094K(6134208K), 0.0041137 secs]
INFO   | jvm 1    | 2011/05/26 04:57:48 | [GC
INFO   | jvm 1    | 2011/05/26 04:57:48 |
1869462K->611304K(6134208K), 0.0060016 secs]
INFO   | jvm 1    | 2011/05/26 04:58:46 | [GC
INFO   | jvm 1    | 2011/05/26 04:58:46 |
1869672K->610972K(6134208K), 0.0053010 secs]
INFO   | jvm 1    | 2011/05/26 04:59:59 | [GC
1869340K->611257K(6134208K), 0.0040952 secs]
INFO   | jvm 1    | 2011/05/26 05:01:28 | [GC
1869625K->612006K(6134208K), 0.0079602 secs]
INFO   | jvm 1    | 2011/05/26 05:03:00 | [GC
1870374K->612103K(6134208K), 0.0053934 secs]


If logging to a specific file, result looks like this. No new lines!

0.853: [GC 2405K(6134208K), 0.0003878 secs]
16.915: [GC 1260773K->62176K(6134208K), 0.0711920 secs]
21.357: [GC 637590K(6134208K), 0.4003372 secs]
26.548: [GC 1320507K->110141K(6134208K), 0.0879849 secs]
30.754: [GC 722976K(6134208K), 0.5191931 secs]
33.719: [GC 1368509K->137204K(6134208K), 0.2726067 secs]


We are running Windows 2008 server R2.

Regards,
Jakob