Alexei Scherbakov created IGNITE-8846:
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Summary: Optimize entry transform operations.
Key: IGNITE-8846
URL: https://issues.apache.org/jira/browse/IGNITE-8846
Project: Ignite
Issue Type: Improvement
Reporter: Alexei Scherbakov
Assignee: Alexei Scherbakov
1. For pessimistic transactions entryProcessor is invoked twice if tx entry is
already exists in [1]
and after lock acquistion in [2]
Actually this is enough to do it only once in postLockWrite.
2. Cache entry value is not needed on near node if EntryProcessor declares Void
return type.
We should try to detect this in runtime or provide some kind of annotation to
mark EntryProcessor not caring about return value. This will bring huge
performance benefit for transactions updating large values using
transformations.
[1]
org.apache.ignite.internal.processors.cache.distributed.near.GridNearTxLocal#enlistWriteEntry
[2]
org.apache.ignite.internal.processors.cache.transactions.IgniteTxLocalAdapter#postLockWrite
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