madeirak commented on issue #13091:
URL: https://github.com/apache/iceberg/issues/13091#issuecomment-3015270711
Thx for reply.
Where can I find references to concurrency issues that may occur under
snapshot isolation？
maybe official references
---- Replied Message ----
| From | Vincent ***@***.***> |
| Date | 06/28/2025 20:58 |
| To | apache/iceberg ***@***.***> |
| Cc | madeirak ***@***.***>,
Author ***@***.***> |
| Subject | Re: [apache/iceberg] Concurrent MERGE INTO on different
partitions still conflicts？？ (Issue #13091) |
Biman54 left a comment (apache/iceberg#13091)
Currently, Iceberg does not support limiting conflict detection to a
specific partition or row filter during serializable isolation. However If your
workload would benefit from more relaxed isolation for performance reasons, you
can opt into snapshot isolation, which does not perform strict conflict checks
for added files that don’t match the operation’s filter.
You can configure the isolation level per operation using these table
properties:
tbl_properties = {
'write.delete.isolation-level' = 'snapshot',
'write.update.isolation-level' = 'snapshot',
'write.merge.isolation-level' = 'snapshot'
}
Setting the isolation level to snapshot can reduce validation scope, but at
the cost of weaker conflict guarantees.
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