Alexey Serbin created KUDU-3388:
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Summary: Automatically update information on partition schema
Key: KUDU-3388
URL: https://issues.apache.org/jira/browse/KUDU-3388
Project: Kudu
Issue Type: Improvement
Components: client
Affects Versions: 1.17.0
Reporter: Alexey Serbin
After introducing ranges with custom hash schemas with
[KUDU-2671|https://issues.apache.org/jira/browse/KUDU-2671], after
adding/dropping a range with custom hash schema it's necessary to refresh
{{KuduTable}} handle that is used in the code to write/read data from the
table. Otherwise, the information on ranges in custom hash schemas in
{{PartitionSchema}} (as a part of metadata stored in the {{KuduTable}} handle)
isn't updated (and operations to insert rows into the newly added range
partition would fail, for example).
It would be great to free application developers from the necessity doing such
refresh. One alternative would be storing {{PartitionSchema}} of all tables
currently open in some sort of catalog in {{KuduClient}}, referring to a proper
entry from {{KuduTable}} handle. Updates of {{PartitionSchema}} in the catalog
could be done automatically as callbacks for successful completion of
AlterTable requests. With that, all {{KuduTable}} handles would refer to the
very recent info on table's metadata.
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