Managing Cassandra repairs

Last Updated : Jun 10, 2026 |

About this task

The repair process synchronizes the data between nodes to provide consistency. Use this procedure to set up the date and time for the Cassandra repair process. You can run the repair on a weekly or monthly basis. You can also disable the repair.

The Avaya Aura® Web Gateway performs the repair on one node at a time. By default, the Avaya Aura® Web Gateway performs the repair once a week on Sunday at 01:20 a.m.

Tip:

Set the time when the system usage is low to minimize impact on system performance.

Cassandra repair results are stored in the CAS.log file.

Procedure

  1. Log in to the seed node CLI as the root user using an SSH connection.
  2. Run the following commands to open the catalina.properties file in the vi editor: 
    cdto active
vi mss/<tomcat_version>/conf/catalina.properties
  3. To run the repair on a weekly basis, do the following:
    1. Edit the com.avaya.cas.cassandra.repair.time.hour=<hour> string to set the hour when the procedure starts.

      This parameter uses a 24-hour notation. For example, if you want to start the procedure at 4 p.m., enter 16.

    2. Edit the com.avaya.cas.cassandra.repair.time.minute=<minute> string to set the minute when the procedure starts.
    3. Edit the com.avaya.cas.cassandra.repair.time.weekday=<day_of_week> string to set the required day of the week.

      The week starts from Sunday. For example, for Sunday, enter 1, for Monday, enter 2, and so on.

    4. In the com.avaya.cas.cassandra.repair.time.monthday=<day_of_month> string, set <day_of_month> to 0.

    For example, to run the repair procedure on Wednesdays at 8:30 p.m., edit the entries as follows:

    com.avaya.cas.cassandra.repair.time.hour=8
com.avaya.cas.cassandra.repair.time.minute=30
com.avaya.cas.cassandra.repair.time.weekday=4
com.avaya.cas.cassandra.repair.time.monthday=0
  4. To run the repair on a monthly basis, do the following:
    1. Edit the com.avaya.cas.cassandra.repair.time.hour=<hour> string to set the hour when the procedure starts.

      This parameter uses a 24-hour notation. For example, if you want to start the procedure at 4 p.m., enter 16.

    2. Edit the com.avaya.cas.cassandra.repair.time.minute=<minute> string to set the minute when the procedure starts.
    3. In the com.avaya.cas.cassandra.repair.time.weekday=<day_of_week> string, set <day_of_week> to 0.
    4. Edit the com.avaya.cas.cassandra.repair.time.monthday=<day_of_month> string to set the required day of the month.

    For example, to run the repair procedure on the second day of each month at 2:40 p.m., edit the entries as follows:

    com.avaya.cas.cassandra.repair.time.hour=14
com.avaya.cas.cassandra.repair.time.minute=40
com.avaya.cas.cassandra.repair.time.weekday=0
com.avaya.cas.cassandra.repair.time.monthday=2
  5. To disable the repair, set both com.avaya.cas.cassandra.repair.time.weekday and com.avaya.cas.cassandra.repair.time.weekday to 0 or to any other valid non-zero value.

    For example:

    com.avaya.cas.cassandra.repair.time.weekday=0
com.avaya.cas.cassandra.repair.time.monthday=0
  6. Save the file.
  7. Run the svc telportal restart command to restart services.
  8. In a cluster environment, repeat the previous steps on all non-seed nodes in the cluster.