‘Too many open files’ but what are they?
java.io.FileNotFoundException: /opt/tb55/s3/conf/web.xml (Too many open files) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:106)
this shows the open file limit has been reached.. you can check this by JMX
java.lang:type=OperatingSystem > OpenFileDescriptorCount
but what are these files ? you can see this by linux shell script
lsof -u tomcat
solution: increase systems open file limit !!!
vi /etc/security/limits.conf
and edit the line to increase open file limit
* soft nofile 3072
* hard nofile 4048
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NB: The OpenFileDescriptorCount is not available in Windows, and it is not included in the OperatingSystemMXBean interface.
thanks for notice,
I didn’t used coding and interface for this , I see this from monitoring tools like jmanage and jconsole