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Especially after a large software update on multiple machines, there may be many thousands of reports from clients. The purpose of this section is to explain potential pitfalls related to such heavy load, and how to avoid them.
When displaying many thousands of reports in the message panel, the browser may need excessive memory, start swapping, and consequentially become more or less completely unresponsive.
To avoid this problem, you should configure a reasonable limit for 'n_messages' (the maximum number of messages shown in the message panel). The default value of '0' will show all messages. If you have only 128 MB RAM, a limit of a few 1000 is recommended.
Updating many thousands of items in the baseline database(s) takes time. However, PHP imposes resource limits ("max_execution_time", "memory_limit") on scripts. Default limits are pretty low, and if the PHP script runs into these resource limits, it will be terminated prematurely, and the update will fail. To avoid this problem, it is recommended that you configure generous limits in your system's the PHP configuration file (php.ini).
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