Java OutOfMemory异常:加载zip文件时出现mmap错误
我在具有JVM参数的生产环境(rhel 5.2 x64,oracle jre 1.7_05,tomcat 7.0.28)上运行我的应用程序:
-Xms8192m -Xmx8192m -XX:MaxPermSize=1024m -Doracle.net.tns_admin=/var/ora_net -XX:ReservedCodeCacheSize=512m -XX:+AggressiveOpts -XX:+UseFastAccessorMethods
-XX:+UseStringCache -XX:+OptimizeStringConcat -XX:+UseCompressedOops -XX:+UseG1GC -Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=9026 -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.authenticate=false
几次之后,我得到了这样的堆栈跟踪:
Java HotSpot(TM) 64-Bit Server VM warning: Attempt to deallocate stack guard pages failed.Java HotSpot(TM) 64-Bit Server VM warning: Attempt to allocate stack guard pages failed.
mmap failed for CEN and END part of zip file
[...]
Caused by: java.lang.OutOfMemoryError: null
at java.util.zip.ZipFile.$$YJP$$open(Native Method) ~[na:1.7.0_05]
at java.util.zip.ZipFile.open(Unknown Source) ~[na:1.7.0_05]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[na:1.7.0_05]
at java.util.zip.ZipFile.<init>(Unknown Source) ~[na:1.7.0_05]
at java.util.jar.JarFile.<init>(Unknown Source) ~[na:1.7.0_05]
at java.util.jar.JarFile.<init>(Unknown Source) ~[na:1.7.0_05]
at sun.net.www.protocol.jar.URLJarFile.<init>(Unknown Source) ~[na:1.7.0_05]
at sun.net.www.protocol.jar.URLJarFile.getJarFile(Unknown Source) ~[na:1.7.0_05]
at sun.net.www.protocol.jar.JarFileFactory.get(Unknown Source) ~[na:1.7.0_05]
at sun.net.www.protocol.jar.JarURLConnection.connect(Unknown Source) ~[na:1.7.0_05]
at sun.net.www.protocol.jar.JarURLConnection.getInputStream(Unknown Source) ~[na:1.7.0_05]
at java.net.URL.openStream(Unknown Source) ~[na:1.7.0_05]
at org.apache.catalina.loader.WebappClassLoader.findLoadedResource(WebappClassLoader.java:3279) ~[na:na]
at org.apache.catalina.loader.WebappClassLoader.getResourceAsStream(WebappClassLoader.java:1478) ~[na:na]
at org.apache.http.util.VersionInfo.loadVersionInfo(VersionInfo.java:242) ~[httpcore-4.2.jar:4.2]
at org.apache.http.impl.client.DefaultHttpClient.setDefaultHttpParams(DefaultHttpClient.java:180) ~[httpclient-4.2.jar:4.2]
at org.apache.http.impl.client.DefaultHttpClient.createHttpParams(DefaultHttpClient.java:158) ~[httpclient-4.2.jar:4.2]
at org.apache.http.impl.client.AbstractHttpClient.getParams(AbstractHttpClient.java:448) ~[httpclient-4.2.jar:4.2]
期待我的探查器-一切正常(用于堆和非堆的内存占10%),我不知道问题出在哪里。
该问题每天在同一时间发生,并且与应用程序正常运行时间无关。是什么原因引起的?
日志文件中的新输出:
Java HotSpot(TM) 64-Bit Server VM warning: CodeCache is full. Compiler has been disabled.Java HotSpot(TM) 64-Bit Server VM warning: Try increasing the code cache size using -XX:ReservedCodeCacheSize=
Code Cache [0x00002aaaab790000, 0x00002aaaad240000, 0x00002aaacb790000)
total_blobs=4223 nmethods=3457 adapters=707 free_code_cache=497085Kb largest_free_block=508887936
但是我有足够的内存:http :
//i.stack.imgur.com/K8VMx.jpg
Java版本中的问题。它在这里描述:https
:
//forums.oracle.com/forums/thread.jspa?messageID=10369413
回答:
在耗尽资源(例如,交换空间不足或允许的内存映射)之前,我已经看到这些错误。看看sudo cat /proc/$PID/maps | wc
-l比较cat /proc/sys/vm/max_map_count
请参阅下面的评论。
我也建议....
您似乎在使用YourKit时遇到了错误。您使用什么版本?
我会减少您的大多数选项,因为它们要么是默认选项,什么都不做,否则可能会使事情复杂化。
-mx8g -XX:MaxPermSize=1g -Doracle.net.tns_admin=/var/ora_net -XX:ReservedCodeCacheSize=512m -XX:+UseG1GC -Dcom.sun.management.jmxremote.port=9026
我会尝试删除-XX:+UseG1GC
,因为这是一个相对较新的收集器,因此不应更改您的结果。
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