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[td-225] fix deadlock for client during query.

This commit is contained in:
Haojun Liao 2020-07-29 13:56:54 +08:00
parent d61a05858a
commit c96bf8b37d
1 changed files with 18 additions and 21 deletions
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39
src/query/src/qExecutor.c
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@ -6293,6 +6293,19 @@ static void setQueryResultReady(SQInfo* pQInfo) {
pthread_mutex_unlock(&pQInfo->lock);
}
static bool doBuildResCheck(SQInfo* pQInfo) {
bool buildRes = false;
pthread_mutex_lock(&pQInfo->lock);
pQInfo->dataReady = QUERY_RESULT_READY;
buildRes = (pQInfo->rspContext != NULL);
pthread_mutex_unlock(&pQInfo->lock);
return buildRes;
}
bool qTableQuery(qinfo_t qinfo) {
SQInfo *pQInfo = (SQInfo *)qinfo;
@ -6303,16 +6316,13 @@ bool qTableQuery(qinfo_t qinfo) {
if (IS_QUERY_KILLED(pQInfo)) {
qDebug("QInfo:%p it is already killed, abort", pQInfo);
setQueryResultReady(pQInfo);
return false;
return doBuildResCheck(pQInfo);
}
if (pQInfo->tableqinfoGroupInfo.numOfTables == 0) {
setQueryStatus(pQInfo->runtimeEnv.pQuery, QUERY_COMPLETED);
setQueryResultReady(pQInfo);
qDebug("QInfo:%p no table exists for query, abort", pQInfo);
return false;
setQueryStatus(pQInfo->runtimeEnv.pQuery, QUERY_COMPLETED);
return doBuildResCheck(pQInfo);
}
// error occurs, record the error code and return to client
@ -6320,9 +6330,7 @@ bool qTableQuery(qinfo_t qinfo) {
if (ret != TSDB_CODE_SUCCESS) {
pQInfo->code = ret;
qDebug("QInfo:%p query abort due to error/cancel occurs, code:%s", pQInfo, tstrerror(pQInfo->code));
setQueryResultReady(pQInfo);
return false;
return doBuildResCheck(pQInfo);
}
qDebug("QInfo:%p query task is launched", pQInfo);
@ -6347,17 +6355,7 @@ bool qTableQuery(qinfo_t qinfo) {
pQInfo, pQuery->rec.rows, pQuery->rec.total + pQuery->rec.rows);
}
bool buildRes = false;
pthread_mutex_lock(&pQInfo->lock);
pQInfo->dataReady = QUERY_RESULT_READY;
if (pQInfo->rspContext != NULL) {
buildRes = true;
}
pthread_mutex_unlock(&pQInfo->lock);
return buildRes;
return doBuildResCheck(pQInfo);
}
int32_t qRetrieveQueryResultInfo(qinfo_t qinfo, bool* buildRes, void* pRspContext) {
@ -6484,7 +6482,6 @@ int32_t qKillQuery(qinfo_t qinfo) {
return TSDB_CODE_QRY_INVALID_QHANDLE;
}
// sem_post(&pQInfo->dataReady);
setQueryKilled(pQInfo);
return TSDB_CODE_SUCCESS;
}