tomcat connection pool monitoring

The Oracle driver package Tomcat 6.0 configures the Oracle database connection pool, and MySQL and MSSQL are pushed accordingly.Tomcat6.0 database connection pool configuration instance (Oracle 11g database)There are several methods to configure the tomcat6.0 database

value on the line. If your CPU has DRNG features, you can take advantage of the hardware to increase the speed of the entropy pool. by Cat/proc/cpuinfo | grep Rdrand can see if its CPU is supported, and generally Intel's CPU for the Ivy_bridge architecture is supported (i3, i5 need to be aware of that architecture, i7 and Xeon are basically supported), and AMD's CPUs are supported after 2015. (If you are a virtual machine you need to turn on addition

Tags: HIKARICP database connection Pool Performance Revolution JavaHIKARICP is a database connection pool of a rising star, known as the best performance, can be perfect to PK off the other connection pool. Original address: http

Linux monitoring (OS, MySQL, Tomcat, Apache), tomcatapache My Opinion on gradually moving away from the development position has been approved by the boss. My next major job is "O M + database management". I would like to thank Jie Minmin and Xiao Ma for accepting my harassment and then harassing them. I will also harass Ye Dong, Mr. Xiaogang, zhishen, and pig. Thank you. At the same time, I would like to

" errortracingenabled= "true" maxrequests= "32" defaultstatementtimeout= "2"/> The defaultstatementtimeout unit is seconds, depending on the business configuration. If you want to set the timeout for only one statement, consider: The front line reported the following error, because statement execution timed out. CAUSE:JAVA.SQL.SQLEXCEPTION:ORA-01013: User requests to cancel the current operation 3. Spring Transaction Manager Configuration Provides a global transaction-level timeout: Summ

In the%jboss_home%/bin/run.sh file java_opts= "$JAVA _opts-dprogram.name= $PROGNAME" Modified to: java_opts= "$JAVA _opts-dprogram.name= $PROGNAME-dcom.sun.management.jmxremote.port=9999- Dcom.sun.management.jmxremote.authenticate=false-dcom.sun.management.jmxremote.ssl=false " #-djava.rmi.server.hostname=192.168.2.2 #this must is added for TOMACAT6 For Tomcat ... find #Execut the requested Command in catalina.sh file. Remote

password that is set.Controlrole is the control user, has read and write permissions, XXXXXX is the password set.Finally, if the firewall is turned on, add the port to the Firewall trust listAdd the following line to the/etc/sysconfig/iptables-A rh-firewall-1-input-p tcp-m state--state new-m TCP--dport 12345-j ACCEPTYou can also add them directly with the iptables command.After you start Tomcat, the 12345 port you just set is on the listening state.T

Basic Principles of database connection pool technology: A data source object is provided by a Web Container (such as Tomcat ).ProgramUsing the JNDI technology to obtain this object. Generally, If you create a connection by yourself, use the followingCodeGet the data source object: Context context = new initialcont

. Third, test whether JMX successfully configured Start Tomcat, enter in Windows command window: Netstat-aon | Findstr "8999" If this port is already in use, it proves that the JMX configuration was successful Four, turn on JMX monitoring Run%java_home%\lib\jconsole.jar Enter Tomcat machine IP, port input 8999 If you are running on this computer, you can enter

1. Mongo object The Mongo object implements a connection pool. Mongo objects are thread-safe. Therefore, you can create only one Mongo object and use it safely in a multi-threaded environment. Therefore, we can use the Mongo variable as a member variable of the singleton class to ensure that only one connection pool

information into a separate table more convenient query.　　 Longitudinal cutting:is called a row cutting. When it comes to big data, the number of columns directly affects the access effect.Instance segmentation:is to abstract the common business parts and store them in separate databases. For example, account database (store user information), log database (storage monitoring data) ...　　 Instance Physical Storage Segmentation:When big data is placed

[Database Study Notes] (4) JDBC data source and connection pool, learning notes jdbc Different database connection pool and JDBC Simply put, a link pool creates many links and stores them in a pool. You can retri