#2499 buf fix (#2518)

* dispatch task fail will set task status failed

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，no worker condition , master will while ture wait for worker startup
2，worker response task status sync wait for result

* 1，task status statistics and process status statistics bug fix (#2357)
2，worker group bug fix

* 1，task status statistics and process status statistics bug fix (#2357)
2，worker group bug fix

* 1，task status statistics and process status statistics bug fix (#2357)
2，worker group bug fix

* 1，task status statistics and process status statistics bug fix (#2357)
2，worker group bug fix

* send mail error, #2466 bug fix

* send mail error, #2466 bug fix

* send mail error, #2466 bug fix

* send mail error, #2466 bug fix

* #2486 bug fix

* host and workergroup compatible

* EnterpriseWeChatUtils modify

* EnterpriseWeChatUtils modify

* EnterpriseWeChatUtils modify

* #2499 bug fix

* add comment

* revert comment

* revert comment

* #2499 buf fix

Co-authored-by: qiaozhanwei <qiaozhanwei@analysys.com.cn>

dolphinscheduler-server/src/main/java/org/apache/dolphinscheduler/server/zk/ZKMasterClient.java

@@ -155,7 +155,7 @@ public class ZKMasterClient extends AbstractZKClient {
 	 * @throws Exception	exception
 	 */
 	private void failoverServerWhenDown(String serverHost, ZKNodeType zkNodeType) throws Exception {
-		if(StringUtils.isEmpty(serverHost)){
+		if(StringUtils.isEmpty(serverHost) || serverHost.startsWith(OSUtils.getHost())){
 			return ;
 		}
 		switch (zkNodeType){