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https://issues.apache.org/jira/browse/PHOENIX-2885?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Taylor updated PHOENIX-2885:
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Description: Instead of by default doing an extra RPC per query, we should
have a default value for UPDATE_CACHE_FREQUENCY. Instead of throwing when an
entity (table/column/column family, etc) is not found, we can force an update
of the client-side cache and retry the statement once. This works well for
references to entities that don't yet exist. However, we won't detect when some
entities are referred to which no longer exists until the cache expires. An
exception is if a physical table is dropped which would be detected
immediately. In addition, we won't start using indexes on tables until the
cache expires. (was: Instead of by default doing an extra RPC per query, we
should have a default value for With the increased usage of the
UPDATE_CACHE_FREQUENCY property to reduce RPCs, we increase the chance that a
separate client attempts to access a column that doesn't exist on the cached
entity. Instead of throwing in this case, we can update the client-side cache.
This works well for references to entities (columns, tables) that don't yet
exist. For entities that *do* exist, we won't detect that they've been deleted.)
> Set default value for UPDATE_CACHE_FREQUENCY
> --------------------------------------------
>
> Key: PHOENIX-2885
> URL: https://issues.apache.org/jira/browse/PHOENIX-2885
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Fix For: 4.9.0
>
>
> Instead of by default doing an extra RPC per query, we should have a default
> value for UPDATE_CACHE_FREQUENCY. Instead of throwing when an entity
> (table/column/column family, etc) is not found, we can force an update of the
> client-side cache and retry the statement once. This works well for
> references to entities that don't yet exist. However, we won't detect when
> some entities are referred to which no longer exists until the cache expires.
> An exception is if a physical table is dropped which would be detected
> immediately. In addition, we won't start using indexes on tables until the
> cache expires.
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