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

enh: persist wal at the beginning of vnodeCommit

This commit is contained in:
benguang.zhao 2022-11-01 00:00:18 +08:00
parent cccfa17027
commit 07db554fab
3 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/libs/wal/wal.h
View File

@ -43,7 +43,7 @@ extern "C" {
#define WAL_FILE_LEN (WAL_PATH_LEN + 32)
#define WAL_MAGIC 0xFAFBFCFDF4F3F2F1ULL
#define WAL_SCAN_BUF_SIZE (1024 * 1024 * 3)
#define WAL_RECOV_SIZE_LIMIT (100 * WAL_SCAN_BUF_SIZE)
#define WAL_RECOV_SIZE_LIMIT (200 * WAL_SCAN_BUF_SIZE)
typedef enum {
TAOS_WAL_WRITE = 1,
@ -159,6 +159,7 @@ void walCleanUp();
// handle open and ctl
SWal *walOpen(const char *path, SWalCfg *pCfg);
int32_t walAlter(SWal *, SWalCfg *pCfg);
int32_t walPersist(SWal *);
void walClose(SWal *);
// write interfaces

6
source/dnode/vnode/src/vnd/vnodeCommit.c
View File

@ -212,6 +212,12 @@ int vnodeCommit(SVnode *pVnode) {
vInfo("vgId:%d, start to commit, commit ID:%" PRId64 " version:%" PRId64, TD_VID(pVnode), pVnode->state.commitID,
pVnode->state.applied);
// persist wal before starting
if (walPersist(pVnode->pWal) < 0) {
vError("vgId:%d, failed to persist wal since %s", TD_VID(pVnode), terrstr());
return -1;
}
pVnode->state.commitTerm = pVnode->state.applyTerm;
// save info

7
source/libs/wal/src/walMgmt.c
View File

@ -187,6 +187,13 @@ int32_t walAlter(SWal *pWal, SWalCfg *pCfg) {
return 0;
}
int32_t walPersist(SWal *pWal) {
taosThreadMutexLock(&pWal->mutex);
int32_t ret = walSaveMeta(pWal);
taosThreadMutexUnlock(&pWal->mutex);
return ret;
}
void walClose(SWal *pWal) {
taosThreadMutexLock(&pWal->mutex);
(void)walSaveMeta(pWal);