Tomcat Big concurrency error Maximum number of threads ($) created for connector with address null and port 8080

1, info:maximum number of threads ($) created for connector with address null and port 8091

Description: The maximum number of threads is wrong

Solution:

Using a thread pool to handle more access with fewer threads can improve the ability of Tomcat to process requests. How to use:

First of all. Open/conf/server.xml, add

1. <Executor name="Tomcatthreadpool" nameprefix="catalina-exec- "
2. maxthreads= "minsparethreads=" maxidletime= " 60000" />

<executor name= "Tomcatthreadpool" nameprefix= "catalina-exec-" maxthreads= "$            " minsparethreads= "20" Maxidletime= "60000"/>  

Maximum thread 500 (general server sufficient), minimum number of idle threads 20, maximum thread idle time 60 seconds.

Then, modify the <connector ...> node to add executor properties, such as:

2. <Connector executor="Tomcatthreadpool"
4. port= "protocol=" http/1.1 "
6. connectiontimeout="60000"
8. keepalivetimeout="15000"
10. maxkeepaliverequests="1"
12. redirectport="443"
14. ...... />

<connector executor= "Tomcatthreadpool"                   port= "                 " protocol= "http/1.1" connectiontimeout= "60000" keepalivetimeout= "15000"                 maxkeepaliverequests= "1"                 redirectport= "443"                 ....../>  

2. Java.net.SocketException:Too Many open files

When Tomcat has a large concurrent user volume, a single JVM process may indeed open too many file handles.

Use #lsof-P 10001|wc-l to view file operands

Do the following:

1. (1). Ps-ef |grep Tomcat View Tomcat's process ID, record ID number, assuming process ID is 10001
2. (2). lsof-p 10001|wc-l View the current number of file operands with process ID 10001
3. (3). Use the command: Ulimit-a to see the maximum number of files allowed to open per user
4. The default is 1024.
5. (4). Then execute: ulimit-n 65536 to adjust the maximum allowable number of files to 65536

Tomcat Big concurrency error Maximum number of threads ($) created for connector with address null and port 8080