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[td-225] do not execute query if the link is already broken.

This commit is contained in:
Haojun Liao 2020-06-13 11:58:58 +08:00
parent 6dec0284bc
commit 315fa74042
2 changed files with 15 additions and 4 deletions
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3
src/inc/query.h
View File

@ -70,7 +70,8 @@ int32_t qRetrieveQueryResultInfo(qinfo_t qinfo);
int32_t qDumpRetrieveResult(qinfo_t qinfo, SRetrieveTableRsp** pRsp, int32_t* contLen); int32_t qDumpRetrieveResult(qinfo_t qinfo, SRetrieveTableRsp** pRsp, int32_t* contLen);
/** /**
* Decide if more results will be produced or not * Decide if more results will be produced or not, NOTE: this function will increase the ref count of QInfo,
* so it can be only called once for each retrieve
* *
* @param qinfo * @param qinfo
* @return * @return

16
src/vnode/src/vnodeRead.c
View File

@ -61,7 +61,7 @@ int32_t vnodeProcessRead(void *param, SReadMsg *pReadMsg) {
// notify connection(handle) that current qhandle is created, if current connection from // notify connection(handle) that current qhandle is created, if current connection from
// client is broken, the query needs to be killed immediately. // client is broken, the query needs to be killed immediately.
static void vnodeNotifyCurrentQhandle(void* handle, void* qhandle, int32_t vgId) { static int32_t vnodeNotifyCurrentQhandle(void* handle, void* qhandle, int32_t vgId) {
SRetrieveTableMsg* killQueryMsg = rpcMallocCont(sizeof(SRetrieveTableMsg)); SRetrieveTableMsg* killQueryMsg = rpcMallocCont(sizeof(SRetrieveTableMsg));
killQueryMsg->qhandle = htobe64((uint64_t) qhandle); killQueryMsg->qhandle = htobe64((uint64_t) qhandle);
killQueryMsg->free = htons(1); killQueryMsg->free = htons(1);
@ -69,7 +69,7 @@ static void vnodeNotifyCurrentQhandle(void* handle, void* qhandle, int32_t vgId)
killQueryMsg->header.contLen = htonl(sizeof(SRetrieveTableMsg)); killQueryMsg->header.contLen = htonl(sizeof(SRetrieveTableMsg));
vTrace("QInfo:%p register qhandle to connect:%p", qhandle, handle); vTrace("QInfo:%p register qhandle to connect:%p", qhandle, handle);
rpcReportProgress(handle, (char*) killQueryMsg, sizeof(SRetrieveTableMsg)); return rpcReportProgress(handle, (char*) killQueryMsg, sizeof(SRetrieveTableMsg));
} }
static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) { static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
@ -106,7 +106,17 @@ static int32_t vnodeProcessQueryMsg(SVnodeObj *pVnode, SReadMsg *pReadMsg) {
pRet->len = sizeof(SQueryTableRsp); pRet->len = sizeof(SQueryTableRsp);
pRet->rsp = pRsp; pRet->rsp = pRsp;
vnodeNotifyCurrentQhandle(pReadMsg->rpcMsg.handle, pQInfo, pVnode->vgId); // current connect is broken
if (vnodeNotifyCurrentQhandle(pReadMsg->rpcMsg.handle, pQInfo, pVnode->vgId) != TSDB_CODE_SUCCESS) {
vError("vgId:%d, QInfo:%p, dnode query discarded since link is broken, %p", pVnode->vgId, pQInfo, pReadMsg->rpcMsg.handle);
pRsp->code = TSDB_CODE_RPC_NETWORK_UNAVAIL;
//NOTE: there two refcount, needs to kill twice, todo refactor
qKillQuery(pQInfo);
qKillQuery(pQInfo);
return pRsp->code;
}
vTrace("vgId:%d, QInfo:%p, dnode query msg disposed", pVnode->vgId, pQInfo); vTrace("vgId:%d, QInfo:%p, dnode query msg disposed", pVnode->vgId, pQInfo);
} else { } else {