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https://issues.apache.org/jira/browse/CASSANDRA-14168?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paulo Motta reassigned CASSANDRA-14168:
---------------------------------------
Assignee: (was: Paulo Motta)
> Throw error when attempting to mutate non-existant table
> --------------------------------------------------------
>
> Key: CASSANDRA-14168
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14168
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Legacy/Core, Legacy/Distributed Metadata
> Reporter: Paulo Motta
> Priority: Normal
>
> When a node receives a write request for a table that was just created but
> it's TableMetadata is not yet registered, it will [throw a
> UnknownTableException|https://github.com/apache/cassandra/blob/7a40abb6a5108688fb1b10c375bb751cbb782ea4/src/java/org/apache/cassandra/schema/Schema.java#L474].
> There is a small racy period though between when the {{TableMetadata}} [is
> registered|https://github.com/apache/cassandra/blob/88c0e29caaffab41422adc673182bb9549e735ab/src/java/org/apache/cassandra/schema/Schema.java#L642]
> and it's {{ColumnFamilyStore}} is
> [created|https://github.com/apache/cassandra/blob/88c0e29caaffab41422adc673182bb9549e735ab/src/java/org/apache/cassandra/schema/Schema.java#L643],
> that a write request can be [silently dropped due to ColumnFamilyStore not
> being
> instantiated|https://github.com/apache/cassandra/blob/8b3a60b9a7dbefeecc06bace617279612ec7092d/src/java/org/apache/cassandra/db/Keyspace.java#L603]
> - even though an error is logged, the request will be completed and an ack
> wrongly sent to the coordinator.
> This was detected during investigation of a flakiness on
> {{materialized_views_test.py:TestMaterializedViews.populate_mv_after_insert_wide_rows_test}}.
> ps: this is not an issue before 4.0, because a new table's {{TableMetadata}}
> was only registered after its
> {{ColumnFamilyStore}} object [was
> loaded|https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/config/Schema.java#L671]
> (which appears to be changed by CASSANDRA-9425).
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