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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