xxq250
/
homework-jianmu
1
0
Fork 0
Code Issues Pull Requests 1 Actions Packages Projects Releases Wiki Activity

drop super table

This commit is contained in:
Hongze Cheng 2022-05-04 07:07:34 +00:00
parent 50f0f992f6
commit 9d2df35316
2 changed files with 50 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

75
source/dnode/vnode/src/meta/metaTable.c
View File

@ -72,44 +72,61 @@ _err:
}
int metaDropSTable(SMeta *pMeta, int64_t verison, SVDropStbReq *pReq) {
SMetaReader mr = {0};
TDBC *pNameIdxc = NULL;
TDBC *pUidIdxc = NULL;
TDBC *pCtbIdxc = NULL;
SCtbIdxKey *pCtbIdxKey;
const void *pKey = NULL;
int nKey;
const void *pData = NULL;
int nData;
int c, ret;
// validate req
metaReaderInit(&mr, pMeta, 0);
if (metaGetTableEntryByUid(&mr, pReq->suid) < 0) {
terrno = TSDB_CODE_VND_TABLE_NOT_EXIST;
// prepare uid idx cursor
tdbDbcOpen(pMeta->pUidIdx, &pUidIdxc, &pMeta->txn);
ret = tdbDbcMoveTo(pUidIdxc, &pReq->suid, sizeof(tb_uid_t), &c);
if (ret < 0 || c != 0) {
terrno = TSDB_CODE_VND_TB_NOT_EXIST;
tdbDbcClose(pUidIdxc);
goto _err;
}
// do drop
// drop from pTbDb
// drop from pSkmDb
// drop from pUidIdx
// drop from pNameIdx
// {
// TDBC *pDbc1 = NULL;
// void *pKey = NULL;
// void *pVal = NULL;
// int kLen = 0;
// int vLen = 0;
// int ret = 0;
// prepare name idx cursor
tdbDbcOpen(pMeta->pNameIdx, &pNameIdxc, &pMeta->txn);
ret = tdbDbcMoveTo(pNameIdxc, pReq->name, strlen(pReq->name) + 1, &c);
if (ret < 0 || c != 0) {
ASSERT(0);
}
// // drop from pCtbIdx
// ret = tdbDbcOpen(pMeta->pCtbIdx, &pDbc1);
// tdbDbcMoveTo(pDbc1, &pReq->suid, sizeof(pReq->suid), NULL /*cmpr*/, 0 /*TDB_FORWARD_SEARCH*/);
// tdbDbcGet(pDbc1, &pKey, &kLen, &pVal, vLen);
// tdbDbcDelete(pDbc1);
// // drop from pTagIdx
// // drop from pTtlIdx
// }
tdbDbcDelete(pUidIdxc);
tdbDbcDelete(pNameIdxc);
tdbDbcClose(pUidIdxc);
tdbDbcClose(pNameIdxc);
// clear and return
metaReaderClear(&mr);
metaError("vgId:%d super table %s uid:%" PRId64 " is dropped", TD_VID(pMeta->pVnode), pReq->name, pReq->suid);
// loop to drop each child table
tdbDbcOpen(pMeta->pCtbIdx, &pCtbIdxc, &pMeta->txn);
ret = tdbDbcMoveTo(pCtbIdxc, &(SCtbIdxKey){.suid = pReq->suid, .uid = INT64_MIN}, sizeof(SCtbIdxKey), &c);
if (ret < 0 || (c < 0 && tdbDbcMoveToNext(pCtbIdxc) < 0)) {
tdbDbcClose(pCtbIdxc);
goto _exit;
}
for (;;) {
tdbDbcGet(pCtbIdxc, &pKey, &nKey, NULL, NULL);
pCtbIdxKey = (SCtbIdxKey *)pKey;
if (pCtbIdxKey->suid > pReq->suid) break;
// drop the child table (TODO)
if (tdbDbcMoveToNext(pCtbIdxc) < 0) break;
}
_exit:
metaDebug("vgId:%d super table %s uid:%" PRId64 " is dropped", TD_VID(pMeta->pVnode), pReq->name, pReq->suid);
return 0;
_err:
metaReaderClear(&mr);
metaError("vgId:%d failed to drop super table %s uid:%" PRId64 " since %s", TD_VID(pMeta->pVnode), pReq->name,
pReq->suid, tstrerror(terrno));
return -1;

8
source/dnode/vnode/src/vnd/vnodeSvr.c
View File

@ -426,10 +426,10 @@ static int vnodeProcessDropStbReq(SVnode *pVnode, int64_t version, void *pReq, i
}
// process request
// if (metaDropSTable(pVnode->pMeta, version, &req) < 0) {
// rcode = terrno;
// goto _exit;
// }
if (metaDropSTable(pVnode->pMeta, version, &req) < 0) {
rcode = terrno;
goto _exit;
}
// return rsp
_exit: