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Merge pull request #6512 from taosdata/fix/TD-4671 

[TD-4671]<fix>: mark dropped dnode in dnodeCfg.json & exit early when…
This commit is contained in:
Shengliang Guan 2021-06-16 18:55:26 +08:00 committed by GitHub
parent 940b565396 d1d2ad540b
commit 3a740a58bb
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 24 additions and 0 deletions
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1
src/dnode/inc/dnodeCfg.h
View File

@ -27,6 +27,7 @@ void dnodeUpdateCfg(SDnodeCfg *cfg);
int32_t dnodeGetDnodeId();
void dnodeGetClusterId(char *clusterId);
void dnodeGetCfg(int32_t *dnodeId, char *clusterId);
void dnodeSetDropped();
#ifdef __cplusplus
}

22
src/dnode/src/dnodeCfg.c
View File

@ -21,6 +21,7 @@
static SDnodeCfg tsCfg = {0};
static pthread_mutex_t tsCfgMutex;
static int32_t tsDnodeDropped;
static int32_t dnodeReadCfg();
static int32_t dnodeWriteCfg();
@ -34,6 +35,10 @@ int32_t dnodeInitCfg() {
if (ret == 0) {
dInfo("dnode cfg is initialized");
}
if (tsDnodeDropped) {
dInfo("dnode is dropped, exiting");
return -1;
}
return ret;
}
@ -44,6 +49,14 @@ void dnodeUpdateCfg(SDnodeCfg *cfg) {
dnodeResetCfg(cfg);
}
void dnodeSetDropped() {
pthread_mutex_lock(&tsCfgMutex);
tsDnodeDropped = 1;
dnodeWriteCfg();
pthread_mutex_unlock(&tsCfgMutex);
}
int32_t dnodeGetDnodeId() {
int32_t dnodeId = 0;
pthread_mutex_lock(&tsCfgMutex);
@ -119,6 +132,14 @@ static int32_t dnodeReadCfg() {
}
cfg.dnodeId = (int32_t)dnodeId->valueint;
cJSON *dnodeDropped = cJSON_GetObjectItem(root, "dnodeDropped");
if (!dnodeDropped || dnodeDropped->type != cJSON_Number) {
dError("failed to read %s, dnodeDropped not found", file);
//goto PARSE_CFG_OVER;
} else {
tsDnodeDropped = (int32_t)dnodeDropped->valueint;
}
cJSON *clusterId = cJSON_GetObjectItem(root, "clusterId");
if (!clusterId || clusterId->type != cJSON_String) {
dError("failed to read %s, clusterId not found", file);
@ -154,6 +175,7 @@ static int32_t dnodeWriteCfg() {
len += snprintf(content + len, maxLen - len, "{\n");
len += snprintf(content + len, maxLen - len, " \"dnodeId\": %d,\n", tsCfg.dnodeId);
len += snprintf(content + len, maxLen - len, " \"dnodeDropped\": %d,\n", tsDnodeDropped);
len += snprintf(content + len, maxLen - len, " \"clusterId\": \"%s\"\n", tsCfg.clusterId);
len += snprintf(content + len, maxLen - len, "}\n");

1
src/dnode/src/dnodeVnodes.c
View File

@ -202,6 +202,7 @@ static void dnodeProcessStatusRsp(SRpcMsg *pMsg) {
char clusterId[TSDB_CLUSTER_ID_LEN];
dnodeGetClusterId(clusterId);
if (clusterId[0] != '\0') {
dnodeSetDropped();
dError("exit zombie dropped dnode");
exit(EXIT_FAILURE);
}