diff --git a/src/query/inc/tdigest.h b/src/query/inc/tdigest.h
index 625311eaabebec1f3d3b8303f34a361ba0129094..f9b615318f5c33f0cf386653367ddfe36ae759f8 100644
--- a/src/query/inc/tdigest.h
+++ b/src/query/inc/tdigest.h
@@ -29,7 +29,7 @@
 #define DOUBLE_MAX 1.79e+308
 
 #define ADDITION_CENTROID_NUM 2
-#define COMPRESSION 400
+#define COMPRESSION 300
 #define GET_CENTROID(compression)  (ceil(compression * M_PI / 2) + 1 + ADDITION_CENTROID_NUM)
 #define GET_THRESHOLD(compression) (7.5 + 0.37 * compression - 2e-4 * pow(compression, 2))
 #define TDIGEST_SIZE(compression)  (sizeof(TDigest) + sizeof(SCentroid)*GET_CENTROID(compression) + sizeof(SPt)*GET_THRESHOLD(compression))
diff --git a/src/query/src/queryMain.c b/src/query/src/queryMain.c
index 2a2ccf9cae0f9e2aab60bddca7c27a8ceb719239..9bdb0efc4d3ed7769aa99ded02e460fe0624ae27 100644
--- a/src/query/src/queryMain.c
+++ b/src/query/src/queryMain.c
@@ -279,6 +279,7 @@ bool qTableQuery(qinfo_t qinfo, uint64_t *qId) {
 
   if (isQueryKilled(pQInfo)) {
     qDebug("QInfo:0x%"PRIx64" it is already killed, abort", pQInfo->qId);
+    setQueryKilled(pQInfo);
     pQInfo->runtimeEnv.outputBuf = NULL;
     return doBuildResCheck(pQInfo);
   }