Summary
When using clustering in v7.4.1 and above, it is possible to see the data channel of FTP traffic will not accelerate
Overview
Starrting in v7.4.1, FTP traffic cannot be accelerated in a clustered system. When FTP traffic is put through a policy that involves acceleration, only the FTP control traffic will be accelerated. The data channel of FTP will end up not being accelerated.
Cause
The Exinda engineers are looking into a root cause.
Workaround
There are two possible workarounds for this situation:
- Break the cluster configuration. Doing so will allow FTP to properly accelerate as expected. However, the benefits of the cluster configuration will not be had during this time
- Disable the round robin acceleration load balancing feature on the Exindas in the cluster. To do so will involve modifying an internal file. For assistance in doing this, please contact Exinda TAC.
Resolution
The Exinda engineers are still investigating a permanent resolution.
Defect ID
D-06026/04189
Internal Notes
To disable acceleration round robin - do the following:
1. Install restricted license
2. Go into the shell
3. Mount the root file system writeable Ð remountrw
4. Add the file Ð vi /etc/tcpahad.conf
5. Add the following line to the file
redirection_algorithm = 01
6. Restart tcpahad from the CLI Ð pm process tcpahad restart
This will restart the process and cluster load balancing will now be disabled. |
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