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

fix: handle error while write vnodes.json

This commit is contained in:
Shengliang Guan 2023-01-06 14:43:32 +08:00
parent 81dcb23cae
commit 03db839d4a
1 changed files with 33 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
source/dnode/mgmt/mgmt_vnode/src/vmFile.c
View File

@ -15,6 +15,7 @@
#define _DEFAULT_SOURCE
#include "vmInt.h"
#include "tjson.h"
#define MAX_CONTENT_LEN 2 * 1024 * 1024
@ -144,9 +145,30 @@ _OVER:
return code;
}
static int32_t vmEncodeVnodeList(SJson *pJson, SVnodeObj **ppVnodes, int32_t numOfVnodes) {
SJson *vnodes = tjsonCreateArray();
if (vnodes == NULL) return -1;
if (tjsonAddItemToObject(pJson, "vnodes", vnodes) < 0) return -1;
for (int32_t i = 0; i < numOfVnodes; ++i) {
SVnodeObj *pVnode = ppVnodes[i];
if (pVnode == NULL) continue;
SJson *vnode = tjsonCreateObject();
if (vnode == NULL) return -1;
if (tjsonAddDoubleToObject(vnode, "vgId", pVnode->vgId) < 0) return -1;
if (tjsonAddDoubleToObject(vnode, "dropped", pVnode->dropped) < 0) return -1;
if (tjsonAddDoubleToObject(vnode, "vgVersion", pVnode->vgVersion) < 0) return -1;
if (tjsonAddItemToArray(vnodes, vnode) < 0) return -1;
}
return 0;
}
int32_t vmWriteVnodeListToFile(SVnodeMgmt *pMgmt) {
int32_t code = -1;
char *content = NULL;
char *buffer = NULL;
SJson *pJson = NULL;
TdFilePtr pFile = NULL;
SVnodeObj **ppVnodes = NULL;
char file[PATH_MAX] = {0};
@ -161,31 +183,16 @@ int32_t vmWriteVnodeListToFile(SVnodeMgmt *pMgmt) {
ppVnodes = vmGetVnodeListFromHash(pMgmt, &numOfVnodes);
if (ppVnodes == NULL) goto _OVER;
int32_t len = 0;
int32_t maxLen = MAX_CONTENT_LEN;
content = taosMemoryCalloc(1, maxLen + 1);
if (content == NULL) goto _OVER;
terrno = TSDB_CODE_OUT_OF_MEMORY;
pJson = tjsonCreateObject();
if (pJson == NULL) goto _OVER;
if (vmEncodeVnodeList(pJson, ppVnodes, numOfVnodes) != 0) goto _OVER;
len += snprintf(content + len, maxLen - len, "{\n");
len += snprintf(content + len, maxLen - len, " \"vnodes\": [\n");
for (int32_t i = 0; i < numOfVnodes; ++i) {
SVnodeObj *pVnode = ppVnodes[i];
if (pVnode == NULL) continue;
buffer = tjsonToString(pJson);
if (buffer == NULL) goto _OVER;
len += snprintf(content + len, maxLen - len, " {\n");
len += snprintf(content + len, maxLen - len, " \"vgId\": %d,\n", pVnode->vgId);
len += snprintf(content + len, maxLen - len, " \"dropped\": %d,\n", pVnode->dropped);
len += snprintf(content + len, maxLen - len, " \"vgVersion\": %d\n", pVnode->vgVersion);
if (i < numOfVnodes - 1) {
len += snprintf(content + len, maxLen - len, " },\n");
} else {
len += snprintf(content + len, maxLen - len, " }\n");
}
}
len += snprintf(content + len, maxLen - len, " ]\n");
len += snprintf(content + len, maxLen - len, "}\n");
if (taosWriteFile(pFile, content, len) <= 0) goto _OVER;
int32_t len = strlen(buffer);
if (taosWriteFile(pFile, buffer, len) <= 0) goto _OVER;
if (taosFsyncFile(pFile) < 0) goto _OVER;
taosCloseFile(&pFile);
@ -195,7 +202,8 @@ int32_t vmWriteVnodeListToFile(SVnodeMgmt *pMgmt) {
dInfo("succeed to write vnodes file:%s, vnodes:%d", realfile, numOfVnodes);
_OVER:
if (content != NULL) taosMemoryFree(content);
if (pJson != NULL) tjsonDelete(pJson);
if (buffer != NULL) taosMemoryFree(buffer);
if (pFile != NULL) taosCloseFile(&pFile);
if (ppVnodes != NULL) {
for (int32_t i = 0; i < numOfVnodes; ++i) {