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Setting retention time in Unravel server

To adjust the retention time (time horizon), you need to set the following properties

  • com.unraveldata.retention.max.days: number of days to keep the heaviest data (such as error logs and drill-down details) in the SQL Database.

  • com.unraveldata.history.maxSize.weeks: number of weeks retained for search results in Elastic Search.

When changing these settings, be aware that long retention requires significant disk space. As a rule of thumb, each map-reduce or Spark job requires about 1 MB of disk space; you can store approximately 1000 jobs per 1 GB of disk.

  1. Stop Unravel

    <Unravel installation directory>/unravel/manager stop

  2. Set the following properties:

    For example:
<Unravel installation directory>/unravel/manager config properties set com.unraveldata.retention.max.days 30 com.unraveldata.history.maxSize.weeks 5

    com.unraveldata.retention.max.days is the most significant factor in controlling disk space usage in the database used by Unravel.

  3. Apply the changes.

    <Unravel installation directory>/unravel/manager config apply

  4. Start Unravel

    <Unravel installation directory>/unravel/manager start
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