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taosdata / TDengine / #4103

17 May 2025 02:18AM UTC coverage: 63.264% (+0.4%) from 62.905%
#4103

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Merge pull request #31110 from taosdata/3.0

merge 3.0

158149 of 318142 branches covered (49.71%)

Branch coverage included in aggregate %.

3 of 5 new or added lines in 1 file covered. (60.0%)

1725 existing lines in 138 files now uncovered.

243642 of 316962 relevant lines covered (76.87%)

16346281.8 hits per line

Source File
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73.26
/source/dnode/vnode/src/meta/metaCommit.c
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/*
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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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#include "meta.h"
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#include "vnd.h"
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static FORCE_INLINE void *metaMalloc(void *pPool, size_t size) {
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  SVBufPool *pool = (SVBufPool *)pPool;
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  SVnode    *pVnode = pool->pVnode;
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  if (pVnode->inUse && pVnode->inUse->size > pVnode->inUse->node.size) {
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    return NULL;
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  }
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  return vnodeBufPoolMallocAligned((SVBufPool *)pPool, size);
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}
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static FORCE_INLINE void metaFree(void *pPool, void *p) { vnodeBufPoolFree((SVBufPool *)pPool, p); }
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// begin a meta txn
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int32_t metaBegin(SMeta *pMeta, int8_t heap) {
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  int32_t code = 0;
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  int32_t lino;
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  void *(*xMalloc)(void *, size_t) = NULL;
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  void (*xFree)(void *, void *) = NULL;
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  void *xArg = NULL;
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  // default heap to META_BEGIN_HEAP_NIL
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  if (heap == META_BEGIN_HEAP_OS) {
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    xMalloc = tdbDefaultMalloc;
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    xFree = tdbDefaultFree;
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  } else if (heap == META_BEGIN_HEAP_BUFFERPOOL) {
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    xMalloc = metaMalloc;
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    xFree = metaFree;
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    xArg = pMeta->pVnode->inUse;
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  }
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  code = tdbBegin(pMeta->pEnv, &pMeta->txn, xMalloc, xFree, xArg, TDB_TXN_WRITE | TDB_TXN_READ_UNCOMMITTED);
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  TSDB_CHECK_CODE(code, lino, _exit);
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  code = tdbCommit(pMeta->pEnv, pMeta->txn);
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  TSDB_CHECK_CODE(code, lino, _exit);
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_exit:
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  if (code) {
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    metaError("vgId:%d %s failed at %s:%d since %s", TD_VID(pMeta->pVnode), __func__, __FILE__, __LINE__,
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              tstrerror(terrno));
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  } else {
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    metaDebug("vgId:%d %s success", TD_VID(pMeta->pVnode), __func__);
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  }
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  TAOS_RETURN(code);
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}
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// commit the meta txn
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TXN *metaGetTxn(SMeta *pMeta) { return pMeta->txn; }
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int  metaCommit(SMeta *pMeta, TXN *txn) { return tdbCommit(pMeta->pEnv, txn); }
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int  metaFinishCommit(SMeta *pMeta, TXN *txn) { return tdbPostCommit(pMeta->pEnv, txn); }
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int metaPrepareAsyncCommit(SMeta *pMeta) {
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  // return tdbPrepareAsyncCommit(pMeta->pEnv, pMeta->txn);
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  int     code = 0;
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  int32_t lino;
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  metaWLock(pMeta);
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  int32_t ret = ttlMgrFlush(pMeta->pTtlMgr, pMeta->txn);
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  if (ret < 0) {
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    metaError("vgId:%d, failed to flush ttl since %s", TD_VID(pMeta->pVnode), tstrerror(ret));
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  }
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  metaULock(pMeta);
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  code = tdbCommit(pMeta->pEnv, pMeta->txn);
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  TSDB_CHECK_CODE(code, lino, _exit);
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  pMeta->changed = false;
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  pMeta->txn = NULL;
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_exit:
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  if (code) {
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    metaError("vgId:%d %s failed at %s:%d since %s", TD_VID(pMeta->pVnode), __func__, __FILE__, __LINE__,
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              tstrerror(terrno));
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  } else {
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    metaDebug("vgId:%d %s success", TD_VID(pMeta->pVnode), __func__);
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  }
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  TAOS_RETURN(code);
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}
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// abort the meta txn
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int metaAbort(SMeta *pMeta) {
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  if (!pMeta->txn) {
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    return 0;
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  }
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  metaCacheClear(pMeta);
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  tdbAbort(pMeta->pEnv, pMeta->txn);
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  pMeta->txn = NULL;
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  return 0;
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}
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