fix: if wal mode is disabled, wal buffer memory is no longer need to supplied.

zerolbsony · zerolbsony · commit ba2e170c5999 · 2025-05-07T21:09:53.000+08:00
diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/DataRegion.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/storageengine/dataregion/DataRegion.java
@@ -3884,14 +3884,14 @@ private static long getAcquireDirectBufferMemCost() {
     long acquireDirectBufferMemCost = 0;
     if (config.getDataRegionConsensusProtocolClass().equals(ConsensusFactory.IOT_CONSENSUS)
         || config.getDataRegionConsensusProtocolClass().equals(ConsensusFactory.IOT_CONSENSUS_V2)) {
-      acquireDirectBufferMemCost = config.getWalBufferSize();
+      acquireDirectBufferMemCost = config.getWalMode().equals(WALMode.DISABLE) ? 0 : config.getWalBufferSize();
     } else if (config
         .getDataRegionConsensusProtocolClass()
         .equals(ConsensusFactory.RATIS_CONSENSUS)) {
       acquireDirectBufferMemCost = config.getDataRatisConsensusLogAppenderBufferSizeMax();
     }
     if (config.getDataRegionConsensusProtocolClass().equals(ConsensusFactory.IOT_CONSENSUS_V2)) {
-      acquireDirectBufferMemCost += PageCacheDeletionBuffer.DAL_BUFFER_SIZE;
+      acquireDirectBufferMemCost += config.getWalMode().equals(WALMode.DISABLE) ? 0 : PageCacheDeletionBuffer.DAL_BUFFER_SIZE;
     }
     return acquireDirectBufferMemCost;
   }

Original file line number	Diff line number	Diff line change
`@@ -3884,14 +3884,14 @@ private static long getAcquireDirectBufferMemCost() {`
`3884`	`3884`	`long acquireDirectBufferMemCost = 0;`
`3885`	`3885`	`if (config.getDataRegionConsensusProtocolClass().equals(ConsensusFactory.IOT_CONSENSUS)`
`3886`	`3886`	`\|\| config.getDataRegionConsensusProtocolClass().equals(ConsensusFactory.IOT_CONSENSUS_V2)) {`
`3887`		`- acquireDirectBufferMemCost = config.getWalBufferSize();`
	`3887`	`+ acquireDirectBufferMemCost = config.getWalMode().equals(WALMode.DISABLE) ? 0 : config.getWalBufferSize();`
`3888`	`3888`	`} else if (config`
`3889`	`3889`	`.getDataRegionConsensusProtocolClass()`
`3890`	`3890`	`.equals(ConsensusFactory.RATIS_CONSENSUS)) {`
`3891`	`3891`	`acquireDirectBufferMemCost = config.getDataRatisConsensusLogAppenderBufferSizeMax();`
`3892`	`3892`	`}`
`3893`	`3893`	`if (config.getDataRegionConsensusProtocolClass().equals(ConsensusFactory.IOT_CONSENSUS_V2)) {`
`3894`		`- acquireDirectBufferMemCost += PageCacheDeletionBuffer.DAL_BUFFER_SIZE;`
	`3894`	`+ acquireDirectBufferMemCost += config.getWalMode().equals(WALMode.DISABLE) ? 0 : PageCacheDeletionBuffer.DAL_BUFFER_SIZE;`
`3895`	`3895`	`}`
`3896`	`3896`	`return acquireDirectBufferMemCost;`
`3897`	`3897`	`}`