To associate different virtual hosts with different tiers, add the AppDynamicsApplicationContext directive to the virtual host configuration, supplying the application, tier and node name as arguments, as follows:ĪppDynamicsApplicationContext MyApp :80 node01ĪppDynamicsApplicationContext MyApp :80 node01 This tends to better represent the logical model of the environment and reduces the likelihood of quickly exhausting tier business transaction limits for an Apache Web Server that proxies a large application environment. In the AppDynamics application model, it will usually make sense to represent each virtual host configured in an Apache Web Server as its own tier. Map Virtual Hosts to AppDynamics Tiersīy configuring virtual hosts, Apache Web Server administrators can have a single Apache Web Server instance act as the entry point for what appears to be different websites from the end user's perspective. It detects loaded modules as backends. Log in to the AppDynamics Controller to begin monitoring. The AppDynamics Apache Agent automatically detects the incoming HTTP calls as business transactions.
Apply load to your web server to activate instrumentation. Therefore for a request proxying to, the backend isnamed as. If you set a value of 2, then the first two segments along-with the IP address are displayed. The default value is 0 and only the IP address of the request URL is displayed. Specify the rule configuration for backend naming in the appdynamics_nf file. This is only applicable for requests routing through the mod_proxy, when Apache is acting as a reverse proxy server, also-known-as a gateway server. You may need to set the following optional directives unless instructed by AppDynamics support:ĪppDynamicsBackendNameSegments- The number of URL segments that are displayed in the backend naming. If you have both 64-bit and 32-bit versions of that library, make sure you are pointing to the correct version using the command export LD_PRELOAD= before starting runSDKProxy. If you are installing the Apache Agent on a 64-bit OS that supports running a 32-bit Apache HTTP Server, make sure that the downloaded Apache Agent matches (i.e., is 32-bit), and that the libstdc+6 library is 32-bit as well. The Proxy expects the appropriate (64- vs. Ensure that the machine on which the agent runs has a locale environment set properly. As some functions in the Apache Agent have a dependency on the locale it could lead to a crash otherwise.īased on the agent's requirement, you can select one of the following and set the environment variable as:. Check for modules with dependencies on libstdc++.so.5. See Special Considerations for Apache Web Servers with libstdc++.so.5 Modules. This is most common with IHS and OHS. The open file descriptor setting can be found in /etc/security/nf, but the setting requires a host reboot to become effective, or set through the "ulimit -n" command for the current userid's session only. Check the open file descriptor limit of the userid that the proxy and/or Apache worker process must have:įor the MPM_Worker mode, the number of file descriptors must be set using the following calculation: 1024 + ServerLimit + (2 * ServerLimit * ThreadsPerChild).įor all other modes, you must set the number of file descriptors using the calculation: (Total number of concurrently active Apache workers * 2) + 1024. Ensure that the ulimit setting for open file descriptors is set such that neither the Apache worker process or the Proxy task does not exceed it to avoid resource contention. **. This is because certain functions in the Apache Agent are dependent on random number generation.Įlse, it can lead to abrupt behavior such as log files or directories may not be created, nothing is reported from the agent to the Controller, and so on. Ensure that the machine on which the agent runs has random or urandom set appropriately. Perform the installation under the same user and group that Apache is using when spawning worker processes and threads. See Supported Apache Web Servers.Īlso verify the following requirements on the machine on which you are installing the agent: Before StartingĮnsure that the web server version and operating system are supported. You may need to restart the Machine Agent after installing the Apache Agent. If you are using the Apache Monitoring Extension with the Machine Agent, you can continue to use it. 
The agent instruments the Apache server and sends performance data to a Java proxy, which in turn sends data to the AppDynamics Controller.
#Download apache web server installer install#
To monitor the performance of your Apache HTTP Server, IBM HTTP Server (IHS) or Oracle HTTP Server, install the AppDynamics Apache Agent on the servers where you run Apache, IHS or OHS.
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