Reply To: HA scripts and how long they take

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#59326
Jonathan Hamilton
Participant

    To help eliminate some of our HA timing issues we have begun using the new Quovadx HA 2.1 scripts.  Currently, we run an Active-Passive setup with 7 pairs of servers across our enterprise.

    When we first received the scripts and I reviewed their functionality, I was very concerned with the approach used, but after extensive testing in QA the scripts proved themself.  As Todd mentioned, the new scripts process in parallel to remove the process’ control files (pid & cmd_port), then kills all HCI processes on the box.

    With the old HA scripts our servers took anywhere from 10 to 30 minutes to shutdown depending on the complexity of the environment.  Now the shutdown is complete in less than 3 minutes.  Startup typically took 10 – 30 minutes due to starting sites in a serial order and our servers are severely overloaded.  Now the startup script is complete in less than a minute.

    In our production environment we have performed at least one HA fail-over per pair with no issues related to the HA scripts.

    Environment:

     7 Production HA Pairs

     320 Sites

     ~10K Threads

     3.4-3.7 Million Messages Day