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Posted to issues@ignite.apache.org by "Denis Chudov (Jira)" <ji...@apache.org> on 2023/05/19 13:19:00 UTC

[jira] [Created] (IGNITE-19530) Reduce size of configuration keys

Denis Chudov created IGNITE-19530:
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             Summary: Reduce size of configuration keys
                 Key: IGNITE-19530
                 URL: https://issues.apache.org/jira/browse/IGNITE-19530
             Project: Ignite
          Issue Type: Improvement
            Reporter: Denis Chudov


The distributed configuration keys are byte arrays formed from strings that contain some constant prefixes, postfixes, delimiters and identificators, mostly UUIDs. Example of the configuration key for default value provider type of table column:

{{dst-cfg.table.tables.d7b99c6a-de10-454d-9370-38d18b65e9c0.columns.d8482dae-cfb8-42b8-a759-9727dd3763a6.defaultValueProvider.type}}

It contains 2 UUIDs in string representation. Unfortunately, there are several configuration entries for each table column (having similar keys) and besides that about a dozen of keys for table itself.

As a result, configuration keys take 68% of a meta storage message related to table creation (for one node cluster, for a table of 2 columns and 25 partitions) which creates excessive load on meta storage raft group in case of mass table creation (see IGNITE-19275 )



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