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op_log

Purpose:

The operations log management interface. Provides access to the Agent history database.

Agent has a history database which is used for storing information about its operations on the Hardware Node or Virtuozzo Containers. To start the logging of an operation, you must specify the log="on" argument in the request message header. Once you initiate the logging, it will continue even if your client program disconnects from Agent. This, for example, allows you to start an operation, disconnect from the system, and review the results of the operation (including the intermediate results) later.

The logging is not available for all operations. In general, the operations that make any kind of modifications or additions (as opposed to the ones that simply retrieve the data) can be logged. The operations that normally take a long time to complete (such as backup for instance) can usually also be logged. The API calls that initiate an operation that support logging are marked in this guide using the Logged Operation annotation in the beginning of the section describing the call.

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