Merge branch 'develop' into mergetodevelop
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bd908f4ab0
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@ -82,7 +82,7 @@ TDengine 分布式架构的逻辑结构图如下:
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### 节点之间的通讯
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**通讯方式:**TDengine系统的各个节点之间的通讯是通过TCP/UDP进行的。因为考虑到物联网场景,数据写入的包一般不大,因此TDengine 除采用TCP做传输之外,还采用UDP方式,因为UDP 更加高效,而且不受连接数的限制。TDengine实现了自己的超时、重传、确认等机制,以确保UDP的可靠传输。对于数据量不到15K的数据包,采取UDP的方式进行传输,超过15K的,或者是查询类的操作,自动采取TCP的方式进行传输。同时,TDengine根据配置和数据包,会自动对数据进行压缩/解压缩,数字签名/认证等处理。对于数据节点之间的数据复制,只采用TCP方式进行数据传输。
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**FQDN配置**:一个数据节点有一个或多个FQDN,可以在系统配置文件taos.cfg通过选项“fqdn"进行指定,如果没有指定,系统将自动获取FQDN。如果节点没有配置FQDN,可以直接使用IP地址作为FQDN,但不建议使用,因为IP地址可变,一旦变化,将让集群无法正常工作。一个数据节点的EP(End Point)由FQDN + Port组成。
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**FQDN配置**:一个数据节点有一个或多个FQDN,可以在系统配置文件taos.cfg通过参数“fqdn"进行指定,如果没有指定,系统将自动获取FQDN。如果节点没有配置FQDN,可以直接将该节点的配置参数fqdn设置为它的IP地址。但不建议使用IP,因为IP地址可变,一旦变化,将让集群无法正常工作。一个数据节点的EP(End Point)由FQDN + Port组成。采用FQDN,需要保证DNS服务正常工作,或者在节点以及应用所在的节点配置好hosts文件。
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**端口配置:**一个数据节点对外的端口由TDengine的系统配置参数serverPort决定,对集群内部通讯的端口是serverPort+5。集群内数据节点之间的数据复制操作还占有一个TCP端口,是serverPort+10. 为支持多线程高效的处理UDP数据,每个对内和对外的UDP链接,都需要占用5个连续的端口。因此一个数据节点总的端口范围为serverPort到serverPort + 10,总共11个TCP/UDP端口。使用时,需要确保防火墙将这些端口打开。每个数据节点可以配置不同的serverPort。
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@ -705,6 +705,7 @@ function install_TDengine() {
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echo
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echo -e "\033[44;32;1mTDengine client is installed successfully!${NC}"
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fi
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touch ~/.taos_history
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rm -rf $(tar -tf taos.tar.gz)
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}
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@ -285,9 +285,9 @@ void tscKillConnection(STscObj *pObj) {
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SSqlObj *pSql = pObj->sqlList;
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while (pSql) {
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//taosStopRpcConn(pSql->thandle);
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pSql = pSql->next;
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}
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SSqlStream *pStream = pObj->streamList;
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while (pStream) {
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@ -226,13 +226,17 @@ int tscSendMsgToServer(SSqlObj *pSql) {
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.handle = &pSql->pRpcCtx,
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.code = 0
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};
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// NOTE: the rpc context should be acquired before sending data to server.
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// Otherwise, the pSql object may have been released already during the response function, which is
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// processMsgFromServer function. In the meanwhile, the assignment of the rpc context to sql object will absolutely
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// cause crash.
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rpcSendRequest(pObj->pDnodeConn, &pSql->epSet, &rpcMsg);
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return TSDB_CODE_SUCCESS;
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if (pObj != NULL && pObj->signature == pObj) {
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rpcSendRequest(pObj->pDnodeConn, &pSql->epSet, &rpcMsg);
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return TSDB_CODE_SUCCESS;
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} else {
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//pObj->signature has been reset by other thread, ignore concurrency problem
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return TSDB_CODE_TSC_CONN_KILLED;
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}
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}
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void tscProcessMsgFromServer(SRpcMsg *rpcMsg, SRpcEpSet *pEpSet) {
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@ -119,11 +119,8 @@ int32_t main(int32_t argc, char *argv[]) {
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syslog(LOG_INFO, "Started TDengine service successfully.");
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for (int res = tsem_wait(&exitSem); res != 0; res = tsem_wait(&exitSem)) {
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if (res != EINTR) {
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syslog(LOG_ERR, "failed to wait exit semphore: %d", res);
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break;
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}
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if (tsem_wait(&exitSem) != 0) {
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syslog(LOG_ERR, "failed to wait exit semphore: %s", strerror(errno));
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}
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dnodeCleanUpSystem();
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@ -97,6 +97,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_TSC_APP_ERROR, 0, 0x0211, "Applicatio
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TAOS_DEFINE_ERROR(TSDB_CODE_TSC_ACTION_IN_PROGRESS, 0, 0x0212, "Action in progress")
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TAOS_DEFINE_ERROR(TSDB_CODE_TSC_DISCONNECTED, 0, 0x0213, "Disconnected from service")
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TAOS_DEFINE_ERROR(TSDB_CODE_TSC_NO_WRITE_AUTH, 0, 0x0214, "No write permission")
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TAOS_DEFINE_ERROR(TSDB_CODE_TSC_CONN_KILLED, 0, 0x0215, "Connection killed")
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// mnode
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TAOS_DEFINE_ERROR(TSDB_CODE_MND_MSG_NOT_PROCESSED, 0, 0x0300, "Message not processed")
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@ -100,7 +100,7 @@ SConnObj *mnodeCreateConn(char *user, uint32_t ip, uint16_t port) {
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};
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tstrncpy(connObj.user, user, sizeof(connObj.user));
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SConnObj *pConn = taosCachePut(tsMnodeConnCache, &connId, sizeof(int32_t), &connObj, sizeof(connObj), CONN_KEEP_TIME*1000);
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SConnObj *pConn = taosCachePut(tsMnodeConnCache, &connId, sizeof(int32_t), &connObj, sizeof(connObj), CONN_KEEP_TIME * 1000);
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mDebug("connId:%d, is created, user:%s ip:%s:%u", connId, user, taosIpStr(ip), port);
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return pConn;
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@ -23,7 +23,7 @@ extern "C" {
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#ifndef TAOS_OS_FUNC_SEMPHONE
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#define tsem_t sem_t
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#define tsem_init sem_init
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#define tsem_wait sem_wait
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int tsem_wait(tsem_t* sem);
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#define tsem_post sem_post
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#define tsem_destroy sem_destroy
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#endif
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@ -16,6 +16,18 @@
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#define _DEFAULT_SOURCE
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#include "os.h"
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#ifndef TAOS_OS_FUNC_SEMPHONE
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int tsem_wait(tsem_t* sem) {
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int ret = 0;
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do {
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ret = sem_wait(sem);
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} while (ret != 0 && errno == EINTR);
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return ret;
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}
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#endif
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#ifndef TAOS_OS_FUNC_SEMPHONE_PTHREAD
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bool taosCheckPthreadValid(pthread_t thread) { return thread != 0; }
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@ -99,9 +99,7 @@ int main(int argc, char *argv[]) {
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sInfo("TAOS arbitrator: %s:%d is running", tsNodeFqdn, tsArbitratorPort);
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for (int res = tsem_wait(&tsArbSem); res != 0; res = tsem_wait(&tsArbSem)) {
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if (res != EINTR) break;
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}
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tsem_wait(&tsArbSem);
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taosCloseTcpThreadPool(tsArbTcpPool);
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sInfo("TAOS arbitrator is shut down\n");
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@ -123,11 +123,6 @@ void *taosProcessSchedQueue(void *param) {
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while (1) {
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if (tsem_wait(&pSched->fullSem) != 0) {
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if (errno == EINTR) {
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/* sem_wait is interrupted by interrupt, ignore and continue */
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uDebug("wait %s fullSem was interrupted", pSched->label);
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continue;
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}
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uError("wait %s fullSem failed(%s)", pSched->label, strerror(errno));
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}
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if (pSched->stop) {
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@ -163,12 +158,8 @@ int taosScheduleTask(void *qhandle, SSchedMsg *pMsg) {
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return 0;
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}
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while (tsem_wait(&pSched->emptySem) != 0) {
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if (errno != EINTR) {
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uError("wait %s emptySem failed(%s)", pSched->label, strerror(errno));
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break;
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}
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uDebug("wait %s emptySem was interrupted", pSched->label);
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if (tsem_wait(&pSched->emptySem) != 0) {
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uError("wait %s emptySem failed(%s)", pSched->label, strerror(errno));
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}
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if (pthread_mutex_lock(&pSched->queueMutex) != 0)
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