我在jboss7.0.2上运行我的应用程序。一段时间后，VM开始抛出错误“FileNotFoundException：Too many open files”。紧接着，异常变为“SocketException：Too many open files”，所有套接字连接开始被拒绝。
当我使用
列出文件时lsof -p (PID of java)
java 2981 jboss cwd DIR 202,1 4096 286892 /opt/jboss7/bin
java 2981 jboss mem REG 202,1 3101294 303234 /opt/jboss7/modules/com/sun/xml/bind/main/jaxb-xjc-2.2.jar
java 2981 jboss mem REG 202,1 872839 303232 /opt/jboss7/modules/com/sun/xml/bind/main/jaxb-impl-2.2.jar
java 2981 jboss mem REG 202,1 543044 303191 /opt/jboss7/modules/org/joda/time/main/joda-time-1.6.2.jar
java 2981 jboss mem REG 202,1 7662 337202 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/slf4j-simple-1.6.4.jar-5e712b1d3aa271f5/slf4j-simple-1.6.4.jar
java 2981 jboss mem REG 202,1 20639 337199 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/log4j-over-slf4j-1.6.4.jar-da4eaca58ac78436/log4j-over-slf4j-1.6.4.jar
java 2981 jboss mem REG 202,1 31284 337194 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/jcommander-1.12.jar-c61b19af70c8bf25/jcommander-1.12.jar
java 2981 jboss mem REG 202,1 666665 337191 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/guice-2.0.jar-29aff9bdf30d9ec6/guice-2.0.jar
java 2981 jboss mem REG 202,1 121070 337188 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/junit-3.8.1.jar-e882fc70a94f89bb/junit-3.8.1.jar
java 2981 jboss mem REG 202,1 659413 337185 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/trove-1.1-beta-5.jar-71bab73f2a1e98c9/trove-1.1-beta-5.jar
java 2981 jboss mem REG 202,1 608376 337182 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/c3p0-0.9.1.jar-7d5529e5d213dc5/c3p0-0.9.1.jar
java 2981 jboss mem REG 202,1 539705 337179 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/postgresql-9.0-801.jdbc4.jar-984beb99091b7785/postgresql-9.0-801.jdbc4.jar
java 2981 jboss mem REG 202,1 26361 337176 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/asm-1.5.3.jar-54fb77fde523b0a9/asm-1.5.3.jar
java 2981 jboss mem REG 202,1 2309955 337173 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/hibernate-core-3.3.2.GA.jar-b8a8129c26f4cd51/hibernate-core-3.3.2.GA.jar
java 2981 jboss mem REG 202,1 15347 337170 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/opencsv-2.0.jar-888b8a58480bd822/opencsv-2.0.jar
java 2981 jboss mem REG 202,1 109318 337167 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/xml-apis-1.0.b2.jar-630532004dbb4129/xml-apis-1.0.b2.jar
java 2981 jboss mem REG 202,1 57779 337164 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/commons-fileupload-1.2.1.jar-5294101c9a62497a/commons-fileupload-1.2.1.jar
java 2981 jboss mem REG 202,1 282244 337161 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/cglib-2.1_2.jar-4ec9fd3801bb1495/cglib-2.1_2.jar
java 2981 jboss mem REG 202,1 644148 337158 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/javassist-3.12.1.GA.jar-5495cc51e7d87d08/javassist-3.12.1.GA.jar
java 2981 jboss mem REG 202,1 232121 337155 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/snakeyaml-1.6.jar-71fb94779beb43bc/snakeyaml-1.6.jar
java 2981 jboss mem REG 202,1 25962 337152 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/slf4j-api-1.6.4.jar-87ef6bbe594711ec/slf4j-api-1.6.4.jar
java 2981 jboss mem REG 202,1 4467 337149 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/aopalliance-1.0.jar-9912ab03a6271bc3/aopalliance-1.0.jar
java 2981 jboss mem REG 202,1 568435 337146 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/testng-5.14.9.jar-a15bf7544fe18e09/testng-5.14.9.jar
java 2981 jboss mem REG 202,1 443432 337143 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/antlr-2.7.6.jar-61bc20b99e33636b/antlr-2.7.6.jar
java 2981 jboss mem REG 202,1 87776 337140 /opt/jboss7/standalone/tmp/vfs/deployment89b34d33a7ecad72/commons-io-1.3.2.jar-512e37e2249c5643/commons-io-1.3.2.jar
java 2981 jboss 783u IPv6 54509212 0t0 TCP Cloud.ecommunicate.celebritytalktone.mobi:webcache->Cloud.ecommunicate.celebritytalktone.mobi:36810 (CLOSE_WAIT)
java 2981 jboss 784u IPv6 54509228 0t0 TCP Cloud.ecommunicate.celebritytalktone.mobi:webcache->Cloud.ecommunicate.celebritytalktone.mobi:36812 (CLOSE_WAIT)
java 2981 jboss 785u IPv6 54509501 0t0 TCP Cloud.ecommunicate.celebritytalktone.mobi:webcache->Cloud.ecommunicate.celebritytalktone.mobi:36818 (CLOSE_WAIT)
java 2981 jboss 786u IPv6 54509555 0t0 TCP Cloud.ecommunicate.celebritytalktone.mobi:webcache->Cloud.ecommunicate.celebritytalktone.mobi:36821 (CLOSE_WAIT)
java 2981 jboss 787u IPv6 54509689 0t0 TCP Cloud.ecommunicate.celebritytalktone.mobi:webcache->Cloud.ecommunicate.celebritytalktone.mobi:36825 (CLOSE_WAIT)
答案 0 :(得分：0)
您可以使用linux命令ulimit将打开的文件句柄的最大数量设置为更大的值。例如：
ulimit -n 60000
答案 1 :(得分：0)
ulimit答案是正确的。
但是，您可能首先需要修改/etc/security/limits.conf文件，以允许用户增加这些限制：
# to give all users a hard limit of 60000 open files
* hard nofile 60000
# to give user "jbossuser" a default limit of 60000 open files
jbossuser - nofile 60000
答案 2 :(得分：0)
它超过了打开文件描述限制的数量。 解决方案：增加打开文件数量的硬限制和软限制。