IGNITE-28305 Add backpressure for partition operations#7950
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EgorKuts wants to merge 7 commits intoapache:mainfrom
Open
IGNITE-28305 Add backpressure for partition operations#7950EgorKuts wants to merge 7 commits intoapache:mainfrom
EgorKuts wants to merge 7 commits intoapache:mainfrom
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added 2 commits
April 17, 2026 18:47
ascherbakoff
approved these changes
Apr 20, 2026
added 2 commits
April 21, 2026 09:01
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Before this change, a node could accept an unbounded number of partition operations, which could lead to the following problems:
To prevent such scenarios, this change introduces a node-level limiter shared across the replica manager and thin-client connector that limits the total in-flight memory of partition operations to a configurable percentage of the JVM heap
(maxInFlightPartitionOperationHeapPercent).
The limit is computed as:
maxInFlightPartitionOperationHeapPercent / 100 * Runtime.getRuntime().maxMemory()
Each incoming message reserves bytes equal to its wire size. When the limit is reached, new requests are rejected immediately with ReplicaOverloadedException so clients can back off, while already accepted operations complete uninterrupted.
https://issues.apache.org/jira/browse/IGNITE-28305