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This section describes some recommended performance tuning configurations to optimize the WSO2 Message Broker. It assumes that you have set up the MB on a server running Unix/Linux, which is recommended for a production deployment. It is recommended to have at least one MB server node for failover. Therefore, a /wiki/spaces/CLUSTER430/pages/42696777is recommended for most production systems with at least two MB server nodes.

Important

  • Performance tuning requires you to modify important system files, which affect all programs running on the server. We recommend you to familiarize yourself with these files using Unix/Linux documentation before editing them.
  • The parameter values we discuss below are just examples. They might not be the optimal values for the specific hardware configurations in your environment. We recommend you to carry out load tests on your environment to tune the ESB accordingly.

OS-level settings

  1. To optimize network and OS performance, configure the following settings in /etc/sysctl.conf file of Linux. These settings specify a larger port range, a more effective TCP connection timeout value, and a number of other important parameters at the OS-level.

    It is not recommended to use net.ipv4.tcp_tw_recycle = 1 when working with network address translation (NAT), such as if you are deploying products in EC2 or any other environment configured with NAT.

    net.ipv4.tcp_fin_timeout = 30
fs.file-max = 2097152
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_tw_reuse = 1
net.core.rmem_default = 524288
net.core.wmem_default = 524288
net.core.rmem_max = 67108864
net.core.wmem_max = 67108864
net.ipv4.tcp_rmem = 4096 87380 16777216
net.ipv4.tcp_wmem = 4096 65536 16777216
net.ipv4.ip_local_port_range = 1024 65535

  2. To alter the number of allowed open files for system users, configure the following settings in /etc/security/limits.conf file of Linux (be sure to include the leading * character).

    * soft nofile 4096
* hard nofile 65535

    Optimal values for these parameters depend on the environment.

JVM-level settings

If one or more worker nodes in a clustered deployment require access to the management console, increase the entity expansion limit as follows in the <MB_HOME>/bin/wso2server.bat file (for Windows) or the <MB_HOME>/bin/wso2server.sh file (for Linux/Solaris). The default entity expansion limit is 64000.

-DentityExpansionLimit=10000

MB-level settings

The following sections describe how you can configure the MB-level settings to optimize performance.

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