homework-jianmu/source/dnode/vnode/src/tsdb/tsdbRetention.c

112 lines
2.9 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tsdb.h"
static bool tsdbShouldDoRetention(STsdb *pTsdb, int64_t now) {
for (int32_t iSet = 0; iSet < taosArrayGetSize(pTsdb->fs.aDFileSet); iSet++) {
SDFileSet *pSet = (SDFileSet *)taosArrayGet(pTsdb->fs.aDFileSet, iSet);
int32_t expLevel = tsdbFidLevel(pSet->fid, &pTsdb->keepCfg, now);
SDiskID did;
if (expLevel == pSet->diskId.level) continue;
if (expLevel < 0) {
return true;
} else {
if (tfsAllocDisk(pTsdb->pVnode->pTfs, expLevel, &did) < 0) {
return false;
}
if (did.level == pSet->diskId.level) continue;
return true;
}
}
return false;
}
int32_t tsdbDoRetention(STsdb *pTsdb, int64_t now) {
int32_t code = 0;
if (!tsdbShouldDoRetention(pTsdb, now)) {
return code;
}
// do retention
STsdbFS fs = {0};
code = tsdbFSCopy(pTsdb, &fs);
if (code) goto _err;
for (int32_t iSet = 0; iSet < taosArrayGetSize(fs.aDFileSet); iSet++) {
SDFileSet *pSet = (SDFileSet *)taosArrayGet(fs.aDFileSet, iSet);
int32_t expLevel = tsdbFidLevel(pSet->fid, &pTsdb->keepCfg, now);
SDiskID did;
if (expLevel < 0) {
taosMemoryFree(pSet->pHeadF);
taosMemoryFree(pSet->pDataF);
taosMemoryFree(pSet->aSttF[0]);
taosMemoryFree(pSet->pSmaF);
taosArrayRemove(fs.aDFileSet, iSet);
iSet--;
} else {
if (expLevel == 0) continue;
if (tfsAllocDisk(pTsdb->pVnode->pTfs, expLevel, &did) < 0) {
code = terrno;
goto _exit;
}
if (did.level == pSet->diskId.level) continue;
// copy file to new disk (todo)
SDFileSet fSet = *pSet;
fSet.diskId = did;
code = tsdbDFileSetCopy(pTsdb, pSet, &fSet);
if (code) goto _err;
code = tsdbFSUpsertFSet(&fs, &fSet);
if (code) goto _err;
}
}
// do change fs
code = tsdbFSPrepareCommit(pTsdb, &fs);
if (code) goto _err;
taosThreadRwlockWrlock(&pTsdb->rwLock);
code = tsdbFSCommit(pTsdb);
if (code) {
taosThreadRwlockUnlock(&pTsdb->rwLock);
goto _err;
}
taosThreadRwlockUnlock(&pTsdb->rwLock);
tsdbFSDestroy(&fs);
_exit:
return code;
_err:
tsdbError("vgId:%d, tsdb do retention failed since %s", TD_VID(pTsdb->pVnode), tstrerror(code));
ASSERT(0);
// tsdbFSRollback(pTsdb->pFS);
return code;
}