shm
This commit is contained in:
Shengliang Guan
parent
a4c761259b
commit
da145d67cf
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@ -14,157 +14,13 @@
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*/
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#define _DEFAULT_SOURCE
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// #include "dndSnode.h"
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// #include "dm.h"
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// #include "dndTransport.h"
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// #include "dndWorker.h"
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#include "smInt.h"
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#if 0
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typedef struct {
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int32_t vgId;
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int32_t refCount;
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int32_t snVersion;
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int8_t dropped;
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char *path;
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SSnode *pImpl;
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STaosQueue *pSharedQ;
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STaosQueue *pUniqueQ;
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} SSnodeObj;
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static void dndProcessSnodeSharedQueue(SDnode *pDnode, SRpcMsg *pMsg);
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static void dndProcessSnodeUniqueQueue(SDnode *pDnode, STaosQall *qall, int32_t numOfMsgs);
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static SSnode *dndAcquireSnode(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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SSnode *pSnode = NULL;
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int32_t refCount = 0;
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taosRLockLatch(&pMgmt->latch);
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if (pMgmt->deployed && !pMgmt->dropped && pMgmt->pSnode != NULL) {
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refCount = atomic_add_fetch_32(&pMgmt->refCount, 1);
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pSnode = pMgmt->pSnode;
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} else {
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terrno = TSDB_CODE_NODE_NOT_DEPLOYED;
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}
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taosRUnLockLatch(&pMgmt->latch);
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if (pSnode != NULL) {
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dTrace("acquire snode, refCount:%d", refCount);
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}
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return pSnode;
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}
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static void dndReleaseSnode(SDnode *pDnode, SSnode *pSnode) {
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if (pSnode == NULL) return;
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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taosRLockLatch(&pMgmt->latch);
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int32_t refCount = atomic_sub_fetch_32(&pMgmt->refCount, 1);
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taosRUnLockLatch(&pMgmt->latch);
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dTrace("release snode, refCount:%d", refCount);
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}
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static int32_t dndReadSnodeFile(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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int32_t code = TSDB_CODE_NODE_PARSE_FILE_ERROR;
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int32_t len = 0;
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int32_t maxLen = 1024;
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char *content = calloc(1, maxLen + 1);
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cJSON *root = NULL;
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char file[PATH_MAX + 20];
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snprintf(file, PATH_MAX + 20, "%s/snode.json", pDnode->dir.dnode);
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// FILE *fp = fopen(file, "r");
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TdFilePtr pFile = taosOpenFile(file, TD_FILE_READ);
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if (pFile == NULL) {
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dDebug("file %s not exist", file);
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code = 0;
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goto PRASE_SNODE_OVER;
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}
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len = (int32_t)taosReadFile(pFile, content, maxLen);
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if (len <= 0) {
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dError("failed to read %s since content is null", file);
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goto PRASE_SNODE_OVER;
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}
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content[len] = 0;
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root = cJSON_Parse(content);
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if (root == NULL) {
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dError("failed to read %s since invalid json format", file);
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goto PRASE_SNODE_OVER;
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}
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cJSON *deployed = cJSON_GetObjectItem(root, "deployed");
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if (!deployed || deployed->type != cJSON_Number) {
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dError("failed to read %s since deployed not found", file);
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goto PRASE_SNODE_OVER;
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}
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pMgmt->deployed = deployed->valueint;
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cJSON *dropped = cJSON_GetObjectItem(root, "dropped");
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if (!dropped || dropped->type != cJSON_Number) {
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dError("failed to read %s since dropped not found", file);
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goto PRASE_SNODE_OVER;
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}
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pMgmt->dropped = dropped->valueint;
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code = 0;
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dDebug("succcessed to read file %s, deployed:%d dropped:%d", file, pMgmt->deployed, pMgmt->dropped);
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PRASE_SNODE_OVER:
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if (content != NULL) free(content);
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if (root != NULL) cJSON_Delete(root);
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if (pFile != NULL) taosCloseFile(&pFile);
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terrno = code;
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return code;
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}
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static int32_t dndWriteSnodeFile(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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char file[PATH_MAX + 20];
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snprintf(file, PATH_MAX + 20, "%s/snode.json", pDnode->dir.dnode);
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// FILE *fp = fopen(file, "w");
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TdFilePtr pFile = taosOpenFile(file, TD_FILE_CTEATE | TD_FILE_WRITE | TD_FILE_TRUNC);
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if (pFile == NULL) {
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terrno = TSDB_CODE_NODE_WRITE_FILE_ERROR;
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dError("failed to write %s since %s", file, terrstr());
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return -1;
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}
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int32_t len = 0;
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int32_t maxLen = 1024;
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char *content = calloc(1, maxLen + 1);
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len += snprintf(content + len, maxLen - len, "{\n");
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len += snprintf(content + len, maxLen - len, " \"deployed\": %d,\n", pMgmt->deployed);
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len += snprintf(content + len, maxLen - len, " \"dropped\": %d\n", pMgmt->dropped);
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len += snprintf(content + len, maxLen - len, "}\n");
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taosWriteFile(pFile, content, len);
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taosFsyncFile(pFile);
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taosCloseFile(&pFile);
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free(content);
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char realfile[PATH_MAX + 20];
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snprintf(realfile, PATH_MAX + 20, "%s/snode.json", pDnode->dir.dnode);
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if (taosRenameFile(file, realfile) != 0) {
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terrno = TSDB_CODE_NODE_WRITE_FILE_ERROR;
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dError("failed to rename %s since %s", file, terrstr());
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return -1;
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}
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dInfo("successed to write %s, deployed:%d dropped:%d", realfile, pMgmt->deployed, pMgmt->dropped);
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return 0;
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}
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static int32_t dndStartSnodeWorker(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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pMgmt->uniqueWorkers = taosArrayInit(0, sizeof(void *));
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@ -206,124 +62,6 @@ static void dndStopSnodeWorker(SDnode *pDnode) {
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taosArrayDestroy(pMgmt->uniqueWorkers);
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}
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static void dndBuildSnodeOption(SDnode *pDnode, SSnodeOpt *pOption) {
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pOption->pDnode = pDnode;
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pOption->sendReqFp = dndSendReqToDnode;
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pOption->sendMnodeReqFp = dndSendReqToMnode;
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pOption->sendRedirectRspFp = dndSendRedirectRsp;
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pOption->dnodeId = pDnode->dnodeId;
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pOption->clusterId = pDnode->clusterId;
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pOption->sver = tsVersion;
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}
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static int32_t dndOpenSnode(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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SSnode *pSnode = dndAcquireSnode(pDnode);
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if (pSnode != NULL) {
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dndReleaseSnode(pDnode, pSnode);
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terrno = TSDB_CODE_NODE_ALREADY_DEPLOYED;
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dError("failed to create snode since %s", terrstr());
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return -1;
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}
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SSnodeOpt option = {0};
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dndBuildSnodeOption(pDnode, &option);
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pSnode = sndOpen(pDnode->dir.snode, &option);
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if (pSnode == NULL) {
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dError("failed to open snode since %s", terrstr());
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return -1;
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}
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if (dndStartSnodeWorker(pDnode) != 0) {
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dError("failed to start snode worker since %s", terrstr());
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sndClose(pSnode);
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return -1;
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}
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pMgmt->deployed = 1;
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if (dndWriteSnodeFile(pDnode) != 0) {
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pMgmt->deployed = 0;
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dError("failed to write snode file since %s", terrstr());
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dndStopSnodeWorker(pDnode);
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sndClose(pSnode);
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return -1;
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}
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taosWLockLatch(&pMgmt->latch);
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pMgmt->pSnode = pSnode;
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taosWUnLockLatch(&pMgmt->latch);
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dInfo("snode open successfully");
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return 0;
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}
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static int32_t dndDropSnode(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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SSnode *pSnode = dndAcquireSnode(pDnode);
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if (pSnode == NULL) {
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dError("failed to drop snode since %s", terrstr());
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return -1;
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}
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taosRLockLatch(&pMgmt->latch);
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pMgmt->dropped = 1;
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taosRUnLockLatch(&pMgmt->latch);
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if (dndWriteSnodeFile(pDnode) != 0) {
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taosRLockLatch(&pMgmt->latch);
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pMgmt->dropped = 0;
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taosRUnLockLatch(&pMgmt->latch);
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dndReleaseSnode(pDnode, pSnode);
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dError("failed to drop snode since %s", terrstr());
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return -1;
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}
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dndReleaseSnode(pDnode, pSnode);
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dndStopSnodeWorker(pDnode);
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pMgmt->deployed = 0;
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dndWriteSnodeFile(pDnode);
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sndClose(pSnode);
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pMgmt->pSnode = NULL;
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sndDestroy(pDnode->dir.snode);
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return 0;
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}
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int32_t smProcessCreateReq(SDnode *pDnode, SRpcMsg *pReq) {
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SDCreateSnodeReq createReq = {0};
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if (tDeserializeSMCreateDropQSBNodeReq(pReq->pCont, pReq->contLen, &createReq) != 0) {
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terrno = TSDB_CODE_INVALID_MSG;
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return -1;
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}
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if (createReq.dnodeId != pDnode->dnodeId) {
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terrno = TSDB_CODE_NODE_INVALID_OPTION;
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dError("failed to create snode since %s", terrstr());
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return -1;
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} else {
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return dndOpenSnode(pDnode);
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}
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}
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int32_t smProcessDropReq(SDnode *pDnode, SRpcMsg *pReq) {
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SDDropSnodeReq dropReq = {0};
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if (tDeserializeSMCreateDropQSBNodeReq(pReq->pCont, pReq->contLen, &dropReq) != 0) {
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terrno = TSDB_CODE_INVALID_MSG;
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return -1;
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}
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if (dropReq.dnodeId != pDnode->dnodeId) {
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terrno = TSDB_CODE_NODE_INVALID_OPTION;
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dError("failed to drop snode since %s", terrstr());
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return -1;
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} else {
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return dndDropSnode(pDnode);
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}
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}
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static void dndProcessSnodeUniqueQueue(SDnode *pDnode, STaosQall *qall, int32_t numOfMsgs) {
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/*SSnodeMgmt *pMgmt = &pDnode->smgmt;*/
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int32_t code = TSDB_CODE_NODE_NOT_DEPLOYED;
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@ -459,33 +197,3 @@ void dndProcessSnodeUniqueMsg(SDnode *pDnode, SRpcMsg *pMsg, SEpSet *pEpSet) {
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void dndProcessSnodeSharedMsg(SDnode *pDnode, SRpcMsg *pMsg, SEpSet *pEpSet) {
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dndWriteSnodeMsgToWorker(pDnode, &pDnode->smgmt.sharedWorker, pMsg);
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}
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int32_t dndInitSnode(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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taosInitRWLatch(&pMgmt->latch);
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if (dndReadSnodeFile(pDnode) != 0) {
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return -1;
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}
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if (pMgmt->dropped) {
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dInfo("snode has been deployed and needs to be deleted");
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sndDestroy(pDnode->dir.snode);
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return 0;
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}
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if (!pMgmt->deployed) return 0;
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return dndOpenSnode(pDnode);
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}
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void dndCleanupSnode(SDnode *pDnode) {
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SSnodeMgmt *pMgmt = &pDnode->smgmt;
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if (pMgmt->pSnode) {
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dndStopSnodeWorker(pDnode);
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sndClose(pMgmt->pSnode);
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pMgmt->pSnode = NULL;
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}
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}
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#endif
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