citus

Author SHA1 Message Date

Author	SHA1	Message	Date
aykut-bozkurt	041f88d7bf	Revert "Revert "Creates new colocation for colocate_with:='none' too"" (#6227 ) This reverts commit `d171a736ab`.	2022-08-24 10:54:04 +03:00
Onder Kalaci	5bc8a81aa7	Add colocation checks for shard splits	2022-07-27 10:01:19 +02:00
Onder Kalaci	12fa3aaf6b	Concurrent shard move/copy and colocated table creation fix It turns out that create_distributed_table and citus_move/copy_shard_placement does not work well concurrently. To fix that, we need to acquire a lock, which sounds like a good use of colocation lock. However, the current usage of colocation lock is limited to higher level UDFs like rebalance_table_shards etc. Those usage of lock is still useful, but we cannot acquire the same lock on citus_move_shard_placement etc. because the coordinator connects to itself to acquire the lock. Hence, the high level UDF blocks itself. To fix that, we use one more colocation lock, with the placements are the main objects to consider.	2022-07-27 10:01:19 +02:00

aykut-bozkurt

Revert "Revert "Creates new colocation for colocate_with:='none' too"" (#6227 )

This reverts commit d171a736ab.

2022-08-24 10:54:04 +03:00

Onder Kalaci 5bc8a81aa7 Add colocation checks for shard splits 2022-07-27 10:01:19 +02:00

Onder Kalaci

12fa3aaf6b

Concurrent shard move/copy and colocated table creation fix

It turns out that create_distributed_table
and citus_move/copy_shard_placement does not
work well concurrently.

To fix that, we need to acquire a lock, which
sounds like a good use of colocation lock.

However, the current usage of colocation lock is
limited to higher level UDFs like rebalance_table_shards
etc. Those usage of lock is still useful, but
we cannot acquire the same lock on citus_move_shard_placement
etc. because the coordinator connects to itself to acquire
the lock. Hence, the high level UDF blocks itself.

To fix that, we use one more colocation lock, with the placements
are the main objects to consider.

2022-07-27 10:01:19 +02:00

3 Commits (812a2b759f3452e94b7d22c8ac52c82001b5888d)