We ran into a very similar thing...
There was a triple bubble-sort (don't' ask :) on a large xml data set.
Something (some cold fusion compare or xml swap or another function)
inside one of those loops was just eating memory like nobody's business.
After we got rid of the sorts, things got better -- but it was just
eating memory slower.
When we got rid of the XML all together & just dealt with a query
recordset instead, the problem virtually disappeared.
I can send out a copy of the sort code that was causing the errors (it
was kind of inefficient, but not so badly written to explain server
crashes).
--B
-----Original Message-----
From: Edward Chanter [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 16, 2005 4:37 AM
To: CF-Linux
Subject: Memory Usage and JVM
Dear All,
One of our servers has recently started to exhibit what I can only
describe as memory leaks. Essentially what happens is that it will run
just fine for roungly 2 hours (depending on traffic) and then slowly JVM
seems to eat up memory. The machine is a little under-spec and a new one
is on order but I'm a little worried that it's not the server because
this app has been running well for a number of years on both windows and
more recently linux.
Trying to get to the bottom of it is proving very difficult and we've
streamlined the app and run all the benchmarking we can think of but the
problem keeps right on happening. I've followed various macromedia tech
notes that seem to deal with this problem but nothing I've done has had
any effect on the problem.
The main reason for this email is that I'm seeing something odd in the
cfserver.log that I thought I'd share with you in case someone has seen
something simillar:
<!--- Begin logfile output --->
Unexpected Signal : 11 occurred at PC=0x40385580
Function=(null)+0x40385580
Library=/opt/coldfusionmx/runtime/jre/lib/i386/server/libjvm.so
NOTE: We are unable to locate the function name symbol for the error
just occurred. Please refer to release documentation for possible
reason and solutions.
Current Java thread:
Dynamic libraries:
08048000-0804f000 r-xp 00000000 03:41 1393294
/opt/coldfusionmx/bin/cfusion 0804f000-08051000 rw-p 00006000 03:41
1393294 /opt/coldfusionmx/bin/cfusion
40000000-40016000 r-xp 00000000 03:41 2228234 /lib/ld-2.3.3.so
40016000-40017000 r--p 00015000 03:41 2228234 /lib/ld-2.3.3.so
40017000-40018000 rw-p 00016000 03:41 2228234 /lib/ld-2.3.3.so
40018000-40020000 r-xp 00000000 03:41 738476
/opt/coldfusionmx/runtime/jre/lib/i386/native_threads/libhpi.so
40020000-40021000 rw-p 00007000 03:41 738476
/opt/coldfusionmx/runtime/jre/lib/i386/native_threads/libhpi.so
40021000-40025000 rw-s 00000000 03:41 1525214
/tmp/hsperfdata_ewar/6403
40025000-40034000 r-xp 00000000 03:41 2228522 /lib/libpthread-0.10.so
40034000-40035000 r--p 0000e000 03:41 2228522 /lib/libpthread-0.10.so
40035000-40036000 rw-p 0000f000 03:41 2228522 /lib/libpthread-0.10.so
40078000-4007a000 r-xp 00000000 03:41 2228352 /lib/libdl-2.3.3.so
4007a000-4007b000 r--p 00001000 03:41 2228352 /lib/libdl-2.3.3.so
4007b000-4007c000 rw-p 00002000 03:41 2228352 /lib/libdl-2.3.3.so
4007d000-40197000 r-xp 00000000 03:41 2228273 /lib/libc-2.3.3.so
40197000-40198000 r--p 0011a000 03:41 2228273 /lib/libc-2.3.3.so
40198000-4019b000 rw-p 0011b000 03:41 2228273 /lib/libc-2.3.3.so
4019d000-40749000 r-xp 00000000 03:41 738478
/opt/coldfusionmx/runtime/jre/lib/i386/server/libjvm.so
40749000-407a3000 rw-p 005ab000 03:41 738478
/opt/coldfusionmx/runtime/jre/lib/i386/server/libjvm.so
407b6000-407c8000 r-xp 00000000 03:41 2228356 /lib/libnsl-2.3.3.so
407c8000-407c9000 r--p 00011000 03:41 2228356 /lib/libnsl-2.3.3.so
407c9000-407ca000 rw-p 00012000 03:41 2228356 /lib/libnsl-2.3.3.so
407cc000-407ed000 r-xp 00000000 03:41 2228354 /lib/libm-2.3.3.so
407ed000-407ee000 r--p 00020000 03:41 2228354 /lib/libm-2.3.3.so
407ee000-407ef000 rw-p 00021000 03:41 2228354 /lib/libm-2.3.3.so
407ef000-407f0000 r--s 00000000 03:41 722168
/opt/coldfusionmx/lib/webchartsJava2D.jar
407f0000-407f3000 r--s 00000000 03:41 1852639
/opt/coldfusionmx/runtime/jre/lib/ext/dnsns.jar
407f3000-407f7000 r--s 00000000 03:41 722150
/opt/coldfusionmx/lib/cf4was_ae.jar
407f7000-407f9000 r--s 00000000 03:41 2033196
/opt/coldfusionmx/lib/cfx.jar 407f9000-407fc000 r--s 00000000 03:41
2033195 /opt/coldfusionmx/lib/cfmx_bootstrap.jar
407fc000-40806000 r-xp 00000000 03:41 2228263
/lib/libnss_files-2.3.3.so
40806000-40807000 r--p 00009000 03:41 2228263
/lib/libnss_files-2.3.3.so
40807000-40808000 rw-p 0000a000 03:41 2228263
/lib/libnss_files-2.3.3.so
40808000-40818000 r-xp 00000000 03:41 738483
/opt/coldfusionmx/runtime/jre/lib/i386/libverify.so
40818000-4081a000 rw-p 0000f000 03:41 738483
/opt/coldfusionmx/runtime/jre/lib/i386/libverify.so
4081a000-4083a000 r-xp 00000000 03:41 738484
/opt/coldfusionmx/runtime/jre/lib/i386/libjava.so
4083a000-4083c000 rw-p 0001f000 03:41 738484
/opt/coldfusionmx/runtime/jre/lib/i386/libjava.so
4083c000-40850000 r-xp 00000000 03:41 738486
/opt/coldfusionmx/runtime/jre/lib/i386/libzip.so
40850000-40853000 rw-p 00013000 03:41 738486
/opt/coldfusionmx/runtime/jre/lib/i386/libzip.so
40853000-421de000 r--s 00000000 03:41 738535
/opt/coldfusionmx/runtime/jre/lib/rt.jar
42228000-4223e000 r--s 00000000 03:41 738508
/opt/coldfusionmx/runtime/jre/lib/sunrsasign.jar
4223e000-42319000 r--s 00000000 03:41 738510
/opt/coldfusionmx/runtime/jre/lib/jsse.jar
42319000-4232a000 r--s 00000000 03:41 738509
/opt/coldfusionmx/runtime/jre/lib/jce.jar
4232a000-42883000 r--s 00000000 03:41 738534
/opt/coldfusionmx/runtime/jre/lib/charsets.jar
4492b000-44930000 r--s 00000000 03:41 722149
/opt/coldfusionmx/lib/cf4was.jar 65b2d000-65d2d000 r--p 00000000 03:41
475880 /usr/lib/locale/locale-archive 65d2d000-66025000 r--s 00000000
03:41 722151 /opt/coldfusionmx/lib/cfusion.jar 66025000-66041000 r--s
00000000 03:41 1852638
/opt/coldfusionmx/runtime/jre/lib/ext/sunjce_provider.jar
66041000-660fd000 r--s 00000000 03:41 1852640
/opt/coldfusionmx/runtime/jre/lib/ext/localedata.jar
660fd000-6610a000 r--s 00000000 03:41 1852641
/opt/coldfusionmx/runtime/jre/lib/ext/ldapsec.jar
6610a000-66183000 r--s 00000000 03:41 722148
/opt/coldfusionmx/lib/bcel.jar 66183000-66211000 r--s 00000000 03:41
722172 /opt/coldfusionmx/lib/cfmx-ssl.jar
66211000-6623f000 r--s 00000000 03:41 722154
/opt/coldfusionmx/lib/flashgateway.jar
6623f000-662a8000 r--s 00000000 03:41 722155
/opt/coldfusionmx/lib/httpclient.jar
662a8000-662d2000 r--s 00000000 03:41 722152
/opt/coldfusionmx/lib/collections.jar
662d2000-662e2000 r--s 00000000 03:41 722173
/opt/coldfusionmx/lib/jakarta-oro-2.0.6.jar
662e2000-662f0000 r--s 00000000 03:41 722159
/opt/coldfusionmx/lib/ldapbp.jar 662f0000-662f7000 r--s 00000000 03:41
722157 /opt/coldfusionmx/lib/jaxp-api.jar
662f7000-662f8000 r--s 00000000 03:41 722202
/opt/coldfusionmx/lib/java2wsdl.jar
662f8000-662f9000 r--s 00000000 03:41 722204
/opt/coldfusionmx/lib/wsdl2java.jar
662f9000-662fa000 r--s 00000000 03:41 1393254
/opt/coldfusionmx/runtime/lib/java2wsdl.jar
662fa000-662fd000 r--s 00000000 03:41 1393260
/opt/coldfusionmx/runtime/lib/jrun-ant-tasks.jar
662fd000-662fe000 r--s 00000000 03:41 1393255
/opt/coldfusionmx/runtime/lib/jspc.jar
662fe000-662ff000 r--s 00000000 03:41 1393279
/opt/coldfusionmx/runtime/lib/migrate.jar
662ff000-66300000 r--s 00000000 03:41 1393256
/opt/coldfusionmx/runtime/lib/sniffer.jar
66400000-66420000 r--s 00000000 03:41 722174
/opt/coldfusionmx/lib/jdom.jar 66420000-6643f000 r--s 00000000 03:41
722158 /opt/coldfusionmx/lib/ldap.jar 6643f000-66466000 r--s 00000000
03:41 722160 /opt/coldfusionmx/lib/log4j.jar 66466000-665ec000 r--s
00000000 03:41 722161 /opt/coldfusionmx/lib/macromedia_drivers.jar
665ec000-66631000 r--s 00000000 03:41 722175
/opt/coldfusionmx/lib/mail.jar 66631000-66651000 r--s 00000000 03:41
722162 /opt/coldfusionmx/lib/NetComponents.jar
66651000-66b04000 r--s 00000000 03:41 722170
/opt/coldfusionmx/lib/tools.jar 66b04000-66bf6000 r--s 00000000 03:41
722167 /opt/coldfusionmx/lib/webcharts.jar
66bf6000-66d6f000 r--s 00000000 03:41 722203
/opt/coldfusionmx/lib/webservices.jar
66d6f000-66e95000 r--s 00000000 03:41 722169
/opt/coldfusionmx/lib/xalan.jar 66e95000-66ec8000 r--s 00000000 03:41
722153 /opt/coldfusionmx/lib/crimson.jar 66ec8000-66f04000 r--s 00000000
03:41 722163 /opt/coldfusionmx/lib/pbclient42RE.jar
66f04000-6701f000 r--s 00000000 03:41 722164
/opt/coldfusionmx/lib/pbembedded42RE.jar
6701f000-67143000 r--s 00000000 03:41 722165
/opt/coldfusionmx/lib/pbserver42RE.jar
67143000-67184000 r--s 00000000 03:41 722166
/opt/coldfusionmx/lib/pbtools42RE.jar
67184000-671a6000 r--s 00000000 03:41 722176
/opt/coldfusionmx/lib/tt-bytecode.jar
671d4000-671e4000 r-xp 00000000 03:41 738489
/opt/coldfusionmx/runtime/jre/lib/i386/libnet.so
671e4000-671e5000 rw-p 0000f000 03:41 738489
/opt/coldfusionmx/runtime/jre/lib/i386/libnet.so
671e5000-671f3000 r--s 00000000 03:41 1393264
/opt/coldfusionmx/runtime/lib/instutil.jar
671f3000-671f4000 r--s 00000000 03:41 1393261
/opt/coldfusionmx/runtime/lib/wsdl2java.jar
671f4000-671f5000 r--s 00000000 03:41 1393278
/opt/coldfusionmx/runtime/lib/xmlscript.jar
671f5000-671f6000 r-xp 00000000 03:41 738501
/opt/coldfusionmx/runtime/jre/lib/i386/librmi.so
671f6000-671f7000 rw-p 00000000 03:41 738501
/opt/coldfusionmx/runtime/jre/lib/i386/librmi.so
671f7000-671fb000 r-xp 00000000 03:41 738500
/opt/coldfusionmx/runtime/jre/lib/i386/libioser12.so
671fb000-671fc000 rw-p 00003000 03:41 738500
/opt/coldfusionmx/runtime/jre/lib/i386/libioser12.so
67300000-6736a000 r--s 00000000 03:41 722156
/opt/coldfusionmx/lib/izmado.jar 6736a000-67b49000 r--s 00000000 03:41
1393280 /opt/coldfusionmx/runtime/lib/jrun.jar
67b49000-67b5d000 r-xp 00000000 03:41 722209
/opt/coldfusionmx/lib/libcfindex.so
67b5d000-67b61000 rw-p 00013000 03:41 722209
/opt/coldfusionmx/lib/libcfindex.so
67b62000-67b77000 r-xp 00000000 03:41 722211
/opt/coldfusionmx/lib/libCFXNeo.so
67b77000-67b7c000 rw-p 00014000 03:41 722211
/opt/coldfusionmx/lib/libCFXNeo.so
67b7c000-67bb0000 r-xp 00000000 03:41 360796
/usr/lib/libstdc++-2-libc6.1-1-2.9.0.so
67bb0000-67bbc000 rw-p 00033000 03:41 360796
/usr/lib/libstdc++-2-libc6.1-1-2.9.0.so
67bcb000-67bce000 r-xp 00000000 03:41 2228514
/lib/libnss_dns-2.3.3.so
67bce000-67bcf000 r--p 00002000 03:41 2228514
/lib/libnss_dns-2.3.3.so
67bcf000-67bd0000 rw-p 00003000 03:41 2228514
/lib/libnss_dns-2.3.3.so
67bd0000-67bdf000 r-xp 00000000 03:41 2228523 /lib/libresolv-2.3.3.so
67bdf000-67be1000 rw-p 0000e000 03:41 2228523 /lib/libresolv-2.3.3.so
67f00000-68079000 r--s 00000000 03:41 1393262
/opt/coldfusionmx/runtime/lib/webservices.jar
68079000-6816f000 r--s 00000000 03:41 1393263
/opt/coldfusionmx/runtime/lib/jrun-xdoclet.jar
6816f000-6829f000 r--s 00000000 03:41 1393258
/opt/coldfusionmx/runtime/lib/oem-xdoclet.jar
6829f000-68459000 r--s 00000000 03:41 1393250
/opt/coldfusionmx/runtime/lib/wsconfig.jar
68459000-684ce000 r--s 00000000 03:41 2033191
/opt/coldfusionmx/wwwroot/WEB-INF/lib/js.jar
68a00000-68a94000 r-xp 00000000 03:41 722212
/opt/coldfusionmx/lib/libporting.so
68a94000-68ab6000 rw-p 00093000 03:41 722212
/opt/coldfusionmx/lib/libporting.so
68ab7000-68d08000 r-xp 00000000 03:41 722207
/opt/coldfusionmx/lib/liballrsei.so
68d08000-68d34000 rw-p 00250000 03:41 722207
/opt/coldfusionmx/lib/liballrsei.so
Heap at VM Abort:
Heap
PSYoungGen total 19008K, used 6463K [0x44930000, 0x46660000,
0x475a0000)
eden space 4928K, 21% used [0x44930000,0x44a33c60,0x44e00000)
from space 14080K, 38% used [0x44e00000,0x4534c2d0,0x45bc0000)
to space 10880K, 0% used [0x45bc0000,0x45bc0000,0x46660000)
PSOldGen total 178304K, used 145390K [0x475a0000, 0x523c0000,
0x5d930000)
object space 178304K, 81% used [0x475a0000,0x5039b830,0x523c0000)
PSPermGen total 17152K, used 17080K [0x5d930000, 0x5e9f0000,
0x65930000)
object space 17152K, 99% used [0x5d930000,0x5e9de130,0x5e9f0000)
Local Time = Thu Jun 16 12:26:14 2005
Elapsed Time = 3129
#
# HotSpot Virtual Machine Error : 11
# Error ID : 4F530E43505002EF
# Please report this error at
# http://java.sun.com/cgi-bin/bugreport.cgi
#
# Java VM: Java HotSpot(TM) Server VM (1.4.2-b28 mixed mode) # space
4928K, 53% used space 14080K, 38% used space 10880K, 0% used space
178304K, 81% used space 17152K, 99% used# An error report file has been
saved as hs_err_pid6403.log.
# Please refer to the file for further information.
#
<!--- End logfile output --->
If anyone has seen this error or has any thoughts on it I would be
eternally gratefull because this one is tying me knots....
Thanks in advance.
best wishes,
-= Ed
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Edward Chanter
Technical Innovations Manager
Collaborative Connections Ltd.
http://www.cc.uk.com/
Phone: +44 (0) 1273 832221
Mobile: +44 (0) 7866 365282
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
best wishes,
-= Ed
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Edward Chanter
Technical Innovations Manager
Collaborative Connections Ltd.
http://www.cc.uk.com/
Phone: +44 (0) 1273 832221
Mobile: +44 (0) 7866 365282
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
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