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[fix](export) The export task thread pool uses a blocking queue strategy #51609

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Merged
morningman merged 1 commit into from
Jun 18, 2025
Merged

[fix](export) The export task thread pool uses a blocking queue strategy #51609

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12 changes: 8 additions & 4 deletions fe/fe-core/src/main/java/org/apache/doris/task/ExportExportingTask.java
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Original file line number Diff line number Diff line change
Expand Up @@ -56,9 +56,6 @@ public class ExportExportingTask extends MasterTask {

protected final ExportJob job;

ThreadPoolExecutor exportExecPool = ThreadPoolManager.newDaemonCacheThreadPool(
Config.maximum_parallelism_of_export_job, "exporting-pool-", false);

public ExportExportingTask(ExportJob job) {
this.job = job;
this.signature = job.getId();
Expand Down Expand Up @@ -115,6 +112,11 @@ protected void exec() {
List<ExportJob.OutfileInfo> outfileInfoList = Lists.newArrayList();

int parallelNum = selectStmtList.size();
// Create thread pool with queue size based on actual parallelism
// Queue size = max(parallelNum, maximum_parallelism_of_export_job) to ensure all tasks can be queued
int queueSize = Math.max(parallelNum, Config.maximum_parallelism_of_export_job);
ThreadPoolExecutor exportExecPool = ThreadPoolManager.newDaemonFixedThreadPool(
Config.maximum_parallelism_of_export_job, queueSize, "exporting-pool-", false);
CompletionService<ExportResult> completionService = new ExecutorCompletionService<>(exportExecPool);

// begin exporting
Expand Down Expand Up @@ -213,8 +215,10 @@ protected void exec() {
job.getStmtExecutor(idx).cancel();
}
}
exportExecPool.shutdownNow();
} else {
exportExecPool.shutdown();
}
exportExecPool.shutdownNow();
}

if (isFailed) {
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