From 83950025e51612093c3398d1150b57d07e8600a6 Mon Sep 17 00:00:00 2001
From: Haojun Liao <hjliao@taosdata.com>
Date: Wed, 31 Jan 2024 08:58:17 +0800
Subject: [PATCH] fix(stream): limit the available threads for stream
 processing.

---
 source/common/src/tglobal.c | 2 +-
 source/util/src/tworker.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/source/common/src/tglobal.c b/source/common/src/tglobal.c
index a7d80fe5db..3b965553af 100644
--- a/source/common/src/tglobal.c
+++ b/source/common/src/tglobal.c
@@ -58,7 +58,7 @@ int32_t tsNumOfMnodeQueryThreads = 4;
 int32_t tsNumOfMnodeFetchThreads = 1;
 int32_t tsNumOfMnodeReadThreads = 1;
 int32_t tsNumOfVnodeQueryThreads = 4;
-float   tsRatioOfVnodeStreamThreads = 1.0;
+float   tsRatioOfVnodeStreamThreads = 0.5;
 int32_t tsNumOfVnodeFetchThreads = 4;
 int32_t tsNumOfVnodeRsmaThreads = 2;
 int32_t tsNumOfQnodeQueryThreads = 4;
diff --git a/source/util/src/tworker.c b/source/util/src/tworker.c
index 57dc60e539..28f7fd4783 100644
--- a/source/util/src/tworker.c
+++ b/source/util/src/tworker.c
@@ -221,7 +221,7 @@ STaosQueue *tAutoQWorkerAllocQueue(SAutoQWorkerPool *pool, void *ahandle, FItem
   int32_t queueNum = taosGetQueueNumber(pool->qset);
   int32_t curWorkerNum = taosArrayGetSize(pool->workers);
   int32_t dstWorkerNum = ceilf(queueNum * pool->ratio);
-  if (dstWorkerNum < 1) dstWorkerNum = 1;
+  if (dstWorkerNum < 2) dstWorkerNum = 2;
 
   // spawn a thread to process queue
   while (curWorkerNum < dstWorkerNum) {