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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-26837

TimescaleDB page doesn't contain space requirements + compressions job's are not using maxchunks_to_compress to control space usage

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    • Icon: Problem report Problem report
    • Resolution: Unresolved
    • Icon: Major Major
    • None
    • 7.0.17, 8.0.0alpha1 (master)
    • None
    • PgSQL 16.9/TSDB 2.20
    • Support backlog

      Steps to reproduce:

      1. Decide to migrate from 1.3TB size installation to TSDB one
      2. follow official guide

      Result:

      1. up to 2x of space can be required

      Expected:

      • Documentation states that up to 2x space required during migration (documentation)
      • Server uses optimised approach with job 'config.maxchunks_to_compress' for initial compression, since default limit is 0 which means (unlimited) https://docs.tigerdata.com/api/latest/jobs-automation/alter_job/#optional-arguments (Server part). For example:
        • if db is small - don't use adjustment (<100G)
        • if db is bigger - adjust how many jobs can be needed initially to keep space usage below 30% level of a already used size. 

            zabbix.dev Zabbix Development Team
            edgar.akhmetshin Edgar Akhmetshin
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              Created:
              Updated: