jboss - Java process memory Keeps Rising -

-

my production env:

os: windows server 2008 r2 64bit jdk: 1.6u41 64bit jboss: 5.1.0 ram: 24gb

jvm parameters in jboss below:

set "java_opts=-xms3072m -xmx3072m -xx:maxpermsize=256m -xx:newsize=1024m -xx:maxnewsize=1024m -xx:survivorratio=32"

then found java.exe memory usage(private working set) in windows task manager keeping going up, after few hours reachs 6gb, after few days, reachs 20gb, jboss server stop working.

i wonder why memory usage can far beyond jvm xmx setting?

can kindly me this?

full gc infomation below: c:\users\administrator>jstat -gcoldcapacity 2456 ogcmn       ogcmx        ogc         oc       ygc   fgc    fgct     gct 2097152.0   2097152.0   2097152.0   2097152.0 20565  1959 3746.986 11586.727

i wonder why memory usage can far beyond jvm xmx setting?

the -xmx setting just gives maximum size of java heap. java uses other memory apart heap; e.g. code of jvm, , memory segments containing compiled code, thread stacks, , memory mapped files.

it seems application has serious memory leak, , leaking non-heap memory.


Comments

Post a Comment

Popular posts from this blog

java - JavaFX 2 slider labelFormatter not being used -

-
i have following code not label slider "foo50", etc... 1 expect setlabelformatter call, instead seems have no effect (the slider labelled 50, 100, etc , println's dont run). there missing? not implemented in default 2.2 skin? using oracle java 7 package javafxbugtest; import javafx.application.application; import javafx.scene.*; import javafx.scene.control.*; import javafx.stage.*; import javafx.util.stringconverter; public class javafxbugtest extends application { @override public void start(final stage primarystage) { slider cp = new slider(); cp.setlabelformatter(new stringconverter<double>() { @override public string tostring(double t) { system.out.println("nope?"); return "foo" + t.tostring(); } @override public double fromstring(string string) { system.out.println("he
Read more

Detect support for Shoutcast ICY MP3 without navigator.userAgent in Firefox? -

-
the current version of mozilla firefox 23.0.1, version not support play mp3 shoutcast streams tcp port different 80 (most common 8000 shoutcast 1.9.8). i use flash when mp3 support not available in html5 audio, way detect is: try{ var = document.createelement('audio'); r = !!(a.canplaytype && !!a.canplaytype("audio/mpeg; codecs=mp3").replace(/^no$/,'')) }catch(e){ r = false; } the support mp3 shoutcast streams in firefox added in version 24 . a.canplaytype("audio/mpeg; codecs=mp3") = in chrome , firefox, chrome support, firefox not support, due current code detect not work firefox. the current version of jquery support ie 6 1.10.2, version not has .browser i think "stylized" way testing features , not querying browsers / versions, notwithstanding here see hard not violate "principle". what "stylized" way of detect mp3 icy support without navigator.useragent in firefox? ther
Read more

web - SVG not rendering properly in Firefox -

-
i have problem svg renderring in firefox. whilst works in safari, chrome or in ie, doesn't work in firefox. inspecting element seems layers there, background visible if it's z-index higher z-index of others. rendered in firefox: svg logo in firefox link original source file: svg file thanks help. ps: used sketch 3 export svg. if helps somehow. you're experiencing bug 995813 . i fixed bug time ago change still making way through release process example display correctly firefox 31 onwards released on 22 july 2014. in meantime if move fill="white" <mask> element child <use> element work around firefox bug.
Read more