我运行我的应用程序生产env(rhel 5.2 x64,oracle jre 1.7_05,tomcat 7.0.28)与JVM参数：
-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,我有堆栈跟踪：
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]
看着我的分析器 – 一切都很好(堆和非堆内存用于10％),我不知道问题在哪里.
这个问题每天都在同一时间发生,它没有连接到应用程序正常运行时间.原因是什么问题？
编辑：
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
但我有足够的记忆：http://i.stack.imgur.com/K8VMx.jpg
回答：
java版本中的问题这里描述：https://forums.oracle.com/forums/thread.jspa?messageID=10369413
解决方法
之前我已经看到这些错误,当运行的资源,如运行的交换空间或运行的允许的内存映射之前.看看sudo cat / proc / $PID / maps | wc -l与cat / proc / sys / vm / max_map_count进行比较
见下面的评论.
我也建议….
你似乎遇到了一个与你的Kit的bug.你使用什么版本？
我会削减大部分的选择,因为他们是默认的,不做任何事情或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
我会尝试放弃-XX：UseG1GC以及这是一个相对较新的收藏家,不应该改变你的结果.
