509 lines
16 KiB
C
509 lines
16 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define _DEFAULT_SOURCE
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#include "mndSnode.h"
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#include "mndDnode.h"
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#include "mndPrivilege.h"
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#include "mndShow.h"
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#include "mndTrans.h"
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#include "mndUser.h"
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#define SNODE_VER_NUMBER 1
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#define SNODE_RESERVE_SIZE 64
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static SSdbRaw *mndSnodeActionEncode(SSnodeObj *pObj);
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static SSdbRow *mndSnodeActionDecode(SSdbRaw *pRaw);
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static int32_t mndSnodeActionInsert(SSdb *pSdb, SSnodeObj *pObj);
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static int32_t mndSnodeActionUpdate(SSdb *pSdb, SSnodeObj *pOld, SSnodeObj *pNew);
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static int32_t mndSnodeActionDelete(SSdb *pSdb, SSnodeObj *pObj);
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static int32_t mndProcessCreateSnodeReq(SRpcMsg *pReq);
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static int32_t mndProcessDropSnodeReq(SRpcMsg *pReq);
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static int32_t mndRetrieveSnodes(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows);
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static void mndCancelGetNextSnode(SMnode *pMnode, void *pIter);
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int32_t mndInitSnode(SMnode *pMnode) {
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SSdbTable table = {
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.sdbType = SDB_SNODE,
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.keyType = SDB_KEY_INT32,
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.encodeFp = (SdbEncodeFp)mndSnodeActionEncode,
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.decodeFp = (SdbDecodeFp)mndSnodeActionDecode,
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.insertFp = (SdbInsertFp)mndSnodeActionInsert,
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.updateFp = (SdbUpdateFp)mndSnodeActionUpdate,
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.deleteFp = (SdbDeleteFp)mndSnodeActionDelete,
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};
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mndSetMsgHandle(pMnode, TDMT_MND_CREATE_SNODE, mndProcessCreateSnodeReq);
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mndSetMsgHandle(pMnode, TDMT_MND_DROP_SNODE, mndProcessDropSnodeReq);
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mndSetMsgHandle(pMnode, TDMT_DND_CREATE_SNODE_RSP, mndTransProcessRsp);
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mndSetMsgHandle(pMnode, TDMT_DND_DROP_SNODE_RSP, mndTransProcessRsp);
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mndAddShowRetrieveHandle(pMnode, TSDB_MGMT_TABLE_SNODE, mndRetrieveSnodes);
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mndAddShowFreeIterHandle(pMnode, TSDB_MGMT_TABLE_SNODE, mndCancelGetNextSnode);
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return sdbSetTable(pMnode->pSdb, table);
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}
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void mndCleanupSnode(SMnode *pMnode) {}
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SEpSet mndAcquireEpFromSnode(SMnode *pMnode, const SSnodeObj *pSnode) {
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SEpSet epSet = {.numOfEps = 1, .inUse = 0};
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memcpy(epSet.eps[0].fqdn, pSnode->pDnode->fqdn, TSDB_FQDN_LEN);
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epSet.eps[0].port = pSnode->pDnode->port;
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return epSet;
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}
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SSnodeObj *mndAcquireSnode(SMnode *pMnode, int32_t snodeId) {
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SSnodeObj *pObj = sdbAcquire(pMnode->pSdb, SDB_SNODE, &snodeId);
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if (pObj == NULL && terrno == TSDB_CODE_SDB_OBJ_NOT_THERE) {
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terrno = TSDB_CODE_MND_SNODE_NOT_EXIST;
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}
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return pObj;
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}
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void mndReleaseSnode(SMnode *pMnode, SSnodeObj *pObj) {
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SSdb *pSdb = pMnode->pSdb;
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sdbRelease(pSdb, pObj);
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}
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static SSdbRaw *mndSnodeActionEncode(SSnodeObj *pObj) {
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int32_t code = 0;
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int32_t lino = 0;
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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SSdbRaw *pRaw = sdbAllocRaw(SDB_SNODE, SNODE_VER_NUMBER, sizeof(SSnodeObj) + SNODE_RESERVE_SIZE);
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if (pRaw == NULL) goto _OVER;
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int32_t dataPos = 0;
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SDB_SET_INT32(pRaw, dataPos, pObj->id, _OVER)
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SDB_SET_INT64(pRaw, dataPos, pObj->createdTime, _OVER)
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SDB_SET_INT64(pRaw, dataPos, pObj->updateTime, _OVER)
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SDB_SET_RESERVE(pRaw, dataPos, SNODE_RESERVE_SIZE, _OVER)
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terrno = 0;
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_OVER:
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if (terrno != 0) {
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mError("snode:%d, failed to encode to raw:%p since %s", pObj->id, pRaw, terrstr());
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sdbFreeRaw(pRaw);
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return NULL;
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}
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mTrace("snode:%d, encode to raw:%p, row:%p", pObj->id, pRaw, pObj);
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return pRaw;
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}
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static SSdbRow *mndSnodeActionDecode(SSdbRaw *pRaw) {
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int32_t code = 0;
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int32_t lino = 0;
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terrno = TSDB_CODE_OUT_OF_MEMORY;
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SSdbRow *pRow = NULL;
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SSnodeObj *pObj = NULL;
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int8_t sver = 0;
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if (sdbGetRawSoftVer(pRaw, &sver) != 0) goto _OVER;
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if (sver != SNODE_VER_NUMBER) {
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terrno = TSDB_CODE_SDB_INVALID_DATA_VER;
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goto _OVER;
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}
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pRow = sdbAllocRow(sizeof(SSnodeObj));
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if (pRow == NULL) goto _OVER;
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pObj = sdbGetRowObj(pRow);
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if (pObj == NULL) goto _OVER;
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int32_t dataPos = 0;
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SDB_GET_INT32(pRaw, dataPos, &pObj->id, _OVER)
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SDB_GET_INT64(pRaw, dataPos, &pObj->createdTime, _OVER)
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SDB_GET_INT64(pRaw, dataPos, &pObj->updateTime, _OVER)
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SDB_GET_RESERVE(pRaw, dataPos, SNODE_RESERVE_SIZE, _OVER)
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terrno = 0;
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_OVER:
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if (terrno != 0) {
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mError("snode:%d, failed to decode from raw:%p since %s", pObj == NULL ? 0 : pObj->id, pRaw, terrstr());
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taosMemoryFreeClear(pRow);
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return NULL;
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}
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mTrace("snode:%d, decode from raw:%p, row:%p", pObj->id, pRaw, pObj);
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return pRow;
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}
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static int32_t mndSnodeActionInsert(SSdb *pSdb, SSnodeObj *pObj) {
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mTrace("snode:%d, perform insert action, row:%p", pObj->id, pObj);
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pObj->pDnode = sdbAcquire(pSdb, SDB_DNODE, &pObj->id);
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if (pObj->pDnode == NULL) {
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terrno = TSDB_CODE_MND_DNODE_NOT_EXIST;
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mError("snode:%d, failed to perform insert action since %s", pObj->id, terrstr());
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return -1;
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}
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return 0;
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}
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static int32_t mndSnodeActionDelete(SSdb *pSdb, SSnodeObj *pObj) {
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mTrace("snode:%d, perform delete action, row:%p", pObj->id, pObj);
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if (pObj->pDnode != NULL) {
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sdbRelease(pSdb, pObj->pDnode);
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pObj->pDnode = NULL;
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}
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return 0;
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}
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static int32_t mndSnodeActionUpdate(SSdb *pSdb, SSnodeObj *pOld, SSnodeObj *pNew) {
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mTrace("snode:%d, perform update action, old row:%p new row:%p", pOld->id, pOld, pNew);
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pOld->updateTime = pNew->updateTime;
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return 0;
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}
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static int32_t mndSetCreateSnodeRedoLogs(STrans *pTrans, SSnodeObj *pObj) {
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int32_t code = 0;
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SSdbRaw *pRedoRaw = mndSnodeActionEncode(pObj);
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if (pRedoRaw == NULL) {
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code = TSDB_CODE_MND_RETURN_VALUE_NULL;
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if (terrno != 0) code = terrno;
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TAOS_RETURN(code);
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}
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TAOS_CHECK_RETURN(mndTransAppendRedolog(pTrans, pRedoRaw));
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TAOS_CHECK_RETURN(sdbSetRawStatus(pRedoRaw, SDB_STATUS_CREATING));
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TAOS_RETURN(code);
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}
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static int32_t mndSetCreateSnodeUndoLogs(STrans *pTrans, SSnodeObj *pObj) {
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int32_t code = 0;
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SSdbRaw *pUndoRaw = mndSnodeActionEncode(pObj);
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if (pUndoRaw == NULL) {
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code = TSDB_CODE_MND_RETURN_VALUE_NULL;
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if (terrno != 0) code = terrno;
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TAOS_RETURN(code);
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}
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TAOS_CHECK_RETURN(mndTransAppendUndolog(pTrans, pUndoRaw));
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TAOS_CHECK_RETURN(sdbSetRawStatus(pUndoRaw, SDB_STATUS_DROPPED));
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TAOS_RETURN(code);
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}
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static int32_t mndSetCreateSnodeCommitLogs(STrans *pTrans, SSnodeObj *pObj) {
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int32_t code = 0;
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SSdbRaw *pCommitRaw = mndSnodeActionEncode(pObj);
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if (pCommitRaw == NULL) {
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code = TSDB_CODE_MND_RETURN_VALUE_NULL;
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if (terrno != 0) code = terrno;
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TAOS_RETURN(code);
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}
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TAOS_CHECK_RETURN(mndTransAppendCommitlog(pTrans, pCommitRaw));
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TAOS_CHECK_RETURN(sdbSetRawStatus(pCommitRaw, SDB_STATUS_READY));
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TAOS_RETURN(code);
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}
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static int32_t mndSetCreateSnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SSnodeObj *pObj) {
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int32_t code = 0;
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SDCreateSnodeReq createReq = {0};
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createReq.dnodeId = pDnode->id;
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int32_t contLen = tSerializeSCreateDropMQSNodeReq(NULL, 0, &createReq);
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void *pReq = taosMemoryMalloc(contLen);
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if (pReq == NULL) {
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code = TSDB_CODE_OUT_OF_MEMORY;
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TAOS_RETURN(code);
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}
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(void)tSerializeSCreateDropMQSNodeReq(pReq, contLen, &createReq);
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STransAction action = {0};
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action.epSet = mndGetDnodeEpset(pDnode);
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action.pCont = pReq;
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action.contLen = contLen;
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action.msgType = TDMT_DND_CREATE_SNODE;
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action.acceptableCode = TSDB_CODE_SNODE_ALREADY_DEPLOYED;
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if ((code = mndTransAppendRedoAction(pTrans, &action)) != 0) {
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taosMemoryFree(pReq);
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TAOS_RETURN(code);
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}
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TAOS_RETURN(code);
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}
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static int32_t mndSetCreateSnodeUndoActions(STrans *pTrans, SDnodeObj *pDnode, SSnodeObj *pObj) {
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int32_t code = 0;
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SDDropSnodeReq dropReq = {0};
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dropReq.dnodeId = pDnode->id;
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int32_t contLen = tSerializeSCreateDropMQSNodeReq(NULL, 0, &dropReq);
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void *pReq = taosMemoryMalloc(contLen);
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if (pReq == NULL) {
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code = TSDB_CODE_OUT_OF_MEMORY;
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TAOS_RETURN(code);
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}
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(void)tSerializeSCreateDropMQSNodeReq(pReq, contLen, &dropReq);
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STransAction action = {0};
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action.epSet = mndGetDnodeEpset(pDnode);
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action.pCont = pReq;
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action.contLen = contLen;
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action.msgType = TDMT_DND_DROP_SNODE;
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action.acceptableCode = TSDB_CODE_SNODE_NOT_DEPLOYED;
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if ((code = mndTransAppendUndoAction(pTrans, &action)) != 0) {
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taosMemoryFree(pReq);
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TAOS_RETURN(code);
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}
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TAOS_RETURN(code);
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}
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static int32_t mndCreateSnode(SMnode *pMnode, SRpcMsg *pReq, SDnodeObj *pDnode, SMCreateSnodeReq *pCreate) {
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int32_t code = -1;
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SSnodeObj snodeObj = {0};
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snodeObj.id = pDnode->id;
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snodeObj.createdTime = taosGetTimestampMs();
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snodeObj.updateTime = snodeObj.createdTime;
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STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_ROLLBACK, TRN_CONFLICT_NOTHING, pReq, "create-snode");
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if (pTrans == NULL) {
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code = TSDB_CODE_MND_RETURN_VALUE_NULL;
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if (terrno != 0) code = terrno;
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goto _OVER;
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}
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mndTransSetSerial(pTrans);
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mInfo("trans:%d, used to create snode:%d", pTrans->id, pCreate->dnodeId);
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TAOS_CHECK_GOTO(mndSetCreateSnodeRedoLogs(pTrans, &snodeObj), NULL, _OVER);
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TAOS_CHECK_GOTO(mndSetCreateSnodeUndoLogs(pTrans, &snodeObj), NULL, _OVER);
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TAOS_CHECK_GOTO(mndSetCreateSnodeCommitLogs(pTrans, &snodeObj), NULL, _OVER);
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TAOS_CHECK_GOTO(mndSetCreateSnodeRedoActions(pTrans, pDnode, &snodeObj), NULL, _OVER);
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TAOS_CHECK_GOTO(mndSetCreateSnodeUndoActions(pTrans, pDnode, &snodeObj), NULL, _OVER);
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TAOS_CHECK_GOTO(mndTransPrepare(pMnode, pTrans), NULL, _OVER);
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code = 0;
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_OVER:
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mndTransDrop(pTrans);
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TAOS_RETURN(code);
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}
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static int32_t mndProcessCreateSnodeReq(SRpcMsg *pReq) {
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SMnode *pMnode = pReq->info.node;
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int32_t code = -1;
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SSnodeObj *pObj = NULL;
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SDnodeObj *pDnode = NULL;
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SMCreateSnodeReq createReq = {0};
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TAOS_CHECK_GOTO(tDeserializeSCreateDropMQSNodeReq(pReq->pCont, pReq->contLen, &createReq), NULL, _OVER);
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mInfo("snode:%d, start to create", createReq.dnodeId);
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TAOS_CHECK_GOTO(mndCheckOperPrivilege(pMnode, pReq->info.conn.user, MND_OPER_CREATE_SNODE), NULL, _OVER);
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// pObj = mndAcquireSnode(pMnode, createReq.dnodeId);
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// if (pObj != NULL) {
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// terrno = TSDB_CODE_MND_SNODE_ALREADY_EXIST;
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// goto _OVER;
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// } else if (terrno != TSDB_CODE_MND_SNODE_NOT_EXIST) {
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// goto _OVER;
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// }
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if (sdbGetSize(pMnode->pSdb, SDB_SNODE) >= 1){
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code = TSDB_CODE_MND_SNODE_ALREADY_EXIST;
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goto _OVER;
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}
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pDnode = mndAcquireDnode(pMnode, createReq.dnodeId);
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if (pDnode == NULL) {
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code = TSDB_CODE_MND_DNODE_NOT_EXIST;
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goto _OVER;
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}
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code = mndCreateSnode(pMnode, pReq, pDnode, &createReq);
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if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
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_OVER:
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if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
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mError("snode:%d, failed to create since %s", createReq.dnodeId, tstrerror(code));
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TAOS_RETURN(code);
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}
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// mndReleaseSnode(pMnode, pObj);
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mndReleaseDnode(pMnode, pDnode);
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tFreeSMCreateQnodeReq(&createReq);
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TAOS_RETURN(code);
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}
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static int32_t mndSetDropSnodeRedoLogs(STrans *pTrans, SSnodeObj *pObj) {
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int32_t code = 0;
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SSdbRaw *pRedoRaw = mndSnodeActionEncode(pObj);
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if (pRedoRaw == NULL) {
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code = TSDB_CODE_MND_RETURN_VALUE_NULL;
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if (terrno != 0) code = terrno;
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TAOS_RETURN(code);
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}
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TAOS_CHECK_RETURN(mndTransAppendRedolog(pTrans, pRedoRaw));
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TAOS_CHECK_RETURN(sdbSetRawStatus(pRedoRaw, SDB_STATUS_DROPPING));
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TAOS_RETURN(code);
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}
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static int32_t mndSetDropSnodeCommitLogs(STrans *pTrans, SSnodeObj *pObj) {
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int32_t code = 0;
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SSdbRaw *pCommitRaw = mndSnodeActionEncode(pObj);
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if (pCommitRaw == NULL) {
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code = TSDB_CODE_MND_RETURN_VALUE_NULL;
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if (terrno != 0) code = terrno;
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TAOS_RETURN(code);
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}
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TAOS_CHECK_RETURN(mndTransAppendCommitlog(pTrans, pCommitRaw));
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TAOS_CHECK_RETURN(sdbSetRawStatus(pCommitRaw, SDB_STATUS_DROPPED));
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TAOS_RETURN(code);
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}
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static int32_t mndSetDropSnodeRedoActions(STrans *pTrans, SDnodeObj *pDnode, SSnodeObj *pObj) {
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int32_t code = 0;
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SDDropSnodeReq dropReq = {0};
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dropReq.dnodeId = pDnode->id;
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int32_t contLen = tSerializeSCreateDropMQSNodeReq(NULL, 0, &dropReq);
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void *pReq = taosMemoryMalloc(contLen);
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if (pReq == NULL) {
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code = TSDB_CODE_OUT_OF_MEMORY;
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TAOS_RETURN(code);
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}
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(void)tSerializeSCreateDropMQSNodeReq(pReq, contLen, &dropReq);
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STransAction action = {0};
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action.epSet = mndGetDnodeEpset(pDnode);
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action.pCont = pReq;
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action.contLen = contLen;
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action.msgType = TDMT_DND_DROP_SNODE;
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action.acceptableCode = TSDB_CODE_SNODE_NOT_DEPLOYED;
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if ((code = mndTransAppendRedoAction(pTrans, &action)) != 0) {
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taosMemoryFree(pReq);
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TAOS_RETURN(code);
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}
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TAOS_RETURN(code);
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}
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int32_t mndSetDropSnodeInfoToTrans(SMnode *pMnode, STrans *pTrans, SSnodeObj *pObj, bool force) {
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if (pObj == NULL) return 0;
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TAOS_CHECK_RETURN(mndSetDropSnodeRedoLogs(pTrans, pObj));
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TAOS_CHECK_RETURN(mndSetDropSnodeCommitLogs(pTrans, pObj));
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if (!force) {
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TAOS_CHECK_RETURN(mndSetDropSnodeRedoActions(pTrans, pObj->pDnode, pObj));
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}
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return 0;
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}
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static int32_t mndDropSnode(SMnode *pMnode, SRpcMsg *pReq, SSnodeObj *pObj) {
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int32_t code = -1;
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STrans *pTrans = mndTransCreate(pMnode, TRN_POLICY_RETRY, TRN_CONFLICT_NOTHING, pReq, "drop-snode");
|
|
if (pTrans == NULL) {
|
|
code = TSDB_CODE_MND_RETURN_VALUE_NULL;
|
|
if (terrno != 0) code = terrno;
|
|
goto _OVER;
|
|
}
|
|
mndTransSetSerial(pTrans);
|
|
|
|
mInfo("trans:%d, used to drop snode:%d", pTrans->id, pObj->id);
|
|
TAOS_CHECK_GOTO(mndSetDropSnodeInfoToTrans(pMnode, pTrans, pObj, false), NULL, _OVER);
|
|
TAOS_CHECK_GOTO(mndTransPrepare(pMnode, pTrans), NULL, _OVER);
|
|
|
|
code = 0;
|
|
|
|
_OVER:
|
|
mndTransDrop(pTrans);
|
|
TAOS_RETURN(code);
|
|
}
|
|
|
|
static int32_t mndProcessDropSnodeReq(SRpcMsg *pReq) {
|
|
SMnode *pMnode = pReq->info.node;
|
|
int32_t code = -1;
|
|
SSnodeObj *pObj = NULL;
|
|
SMDropSnodeReq dropReq = {0};
|
|
|
|
TAOS_CHECK_GOTO(tDeserializeSCreateDropMQSNodeReq(pReq->pCont, pReq->contLen, &dropReq), NULL, _OVER);
|
|
|
|
mInfo("snode:%d, start to drop", dropReq.dnodeId);
|
|
TAOS_CHECK_GOTO(mndCheckOperPrivilege(pMnode, pReq->info.conn.user, MND_OPER_DROP_SNODE), NULL, _OVER);
|
|
|
|
if (dropReq.dnodeId <= 0) {
|
|
code = TSDB_CODE_INVALID_MSG;
|
|
goto _OVER;
|
|
}
|
|
|
|
pObj = mndAcquireSnode(pMnode, dropReq.dnodeId);
|
|
if (pObj == NULL) {
|
|
code = TSDB_CODE_MND_RETURN_VALUE_NULL;
|
|
if (terrno != 0) code = terrno;
|
|
goto _OVER;
|
|
}
|
|
|
|
// check deletable
|
|
code = mndDropSnode(pMnode, pReq, pObj);
|
|
if (code == 0) code = TSDB_CODE_ACTION_IN_PROGRESS;
|
|
|
|
_OVER:
|
|
if (code != 0 && code != TSDB_CODE_ACTION_IN_PROGRESS) {
|
|
mError("snode:%d, failed to drop since %s", dropReq.dnodeId, tstrerror(code));
|
|
}
|
|
|
|
mndReleaseSnode(pMnode, pObj);
|
|
tFreeSMCreateQnodeReq(&dropReq);
|
|
TAOS_RETURN(code);
|
|
}
|
|
|
|
static int32_t mndRetrieveSnodes(SRpcMsg *pReq, SShowObj *pShow, SSDataBlock *pBlock, int32_t rows) {
|
|
SMnode *pMnode = pReq->info.node;
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
int32_t numOfRows = 0;
|
|
int32_t cols = 0;
|
|
SSnodeObj *pObj = NULL;
|
|
|
|
while (numOfRows < rows) {
|
|
pShow->pIter = sdbFetch(pSdb, SDB_SNODE, pShow->pIter, (void **)&pObj);
|
|
if (pShow->pIter == NULL) break;
|
|
|
|
cols = 0;
|
|
SColumnInfoData *pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
(void)colDataSetVal(pColInfo, numOfRows, (const char *)&pObj->id, false);
|
|
|
|
char ep[TSDB_EP_LEN + VARSTR_HEADER_SIZE] = {0};
|
|
STR_WITH_MAXSIZE_TO_VARSTR(ep, pObj->pDnode->ep, pShow->pMeta->pSchemas[cols].bytes);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
(void)colDataSetVal(pColInfo, numOfRows, (const char *)ep, false);
|
|
|
|
pColInfo = taosArrayGet(pBlock->pDataBlock, cols++);
|
|
(void)colDataSetVal(pColInfo, numOfRows, (const char *)&pObj->createdTime, false);
|
|
|
|
numOfRows++;
|
|
sdbRelease(pSdb, pObj);
|
|
}
|
|
|
|
pShow->numOfRows += numOfRows;
|
|
|
|
return numOfRows;
|
|
}
|
|
|
|
static void mndCancelGetNextSnode(SMnode *pMnode, void *pIter) {
|
|
SSdb *pSdb = pMnode->pSdb;
|
|
sdbCancelFetch(pSdb, pIter);
|
|
}
|