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Fix WCAR documentation #88

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Fix WCAR documentation #88

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6 changes: 3 additions & 3 deletions maxscale/reference/maxscale-filters/maxscale-workload-capture-and-replay.md
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# MaxScale Workload Capture and Replay

_The WCAR (Write Consistent Archive and Replay) module is a sophisticated feature designed to capture and archive client traffic passing through a MaxScale instance. This allows system administrators and developers to process and store vast volumes of data related to client-server interactions in a reliable manner. By harnessing this captured data, users gain the flexibility to replay and simulate the varied client activity typically seen in a production environment._
_The WCAR (Workload Capture and Replay) module is a sophisticated feature designed to capture and archive client traffic passing through a MaxScale instance. This allows system administrators and developers to process and store vast volumes of data related to client-server interactions in a reliable manner. By harnessing this captured data, users gain the flexibility to replay and simulate the varied client activity typically seen in a production environment._

_One of the module's primary advantages is that it removes the necessity of creating explicit traffic generators, which can be resource-intensive and complex to maintain. Instead, the WCAR module provides a seamless method for mirroring realistic client interactions and behavior patterns, which can be critical for testing, debugging, and optimizing system performance._

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#### Installation

Install the required packages on the MaxScale server where the replay is to be done. An additional dependency that must be manually installed is Python, version 3.9 or newer. On most linux distributions a new enough version is available as the default Python interpreter. You may also need to install the development packages for Python, `python3-devel` on RHEL based systems or `python3-dev` on Debian based systems.
Install the required packages on the MaxScale server where the replay is to be done. An additional dependency that must be manually installed is Python, version 3.9 or newer. On most linux distributions a new enough version is available as the default Python interpreter. You may also need to install the development packages for Python, `python3-devel` on RHEL based systems or `python3-dev` on Debian based systems, as well as a C++ compiler.

For RHEL 8, Rocky Linux 8 and Alma Linux 8, a newer version of Python must be installed with `dnf install python39 python39-devel` and it must be set as the default python implementation with `alternatives --set python3 /usr/bin/python3.9`.
For RHEL 8, Rocky Linux 8 and Alma Linux 8, a newer version of Python must be installed along with the development headers with `dnf install python39 python39-devel gcc-c++` and it must be set as the default python implementation with `alternatives --set python3 /usr/bin/python3.9`.

The replay consists of restoring the database to the point in time where the capture was started. Start by restoring the replay database to this state. Once the database has been restored from the backup, copy the capture files over to the replay MaxScale server.

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