当我使用Java时,我使用NGINX作为负载均衡器,但现在我们有Windows技术堆栈和Windows Server 2008R2作为服务器PS。现在我们需要选择负载均衡器。
我想在windows上使用nginx,但我的同事说nginx只在Linux系统上有效。nginx真的是真的吗?哪种平衡器适合在Windows服务器上使用?
我在我的应用程序中使用Hbase-Hadoop组合,并使用Data Nucleus作为ORM。
当我试图同时通过多个线程访问hbase时。它抛出异常的原因如下:
Exception in thread "Thread-26" javax.jdo.JDODataStoreException
org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is able to connect to ZooKeeper but the connection closes immediately. This could be a
com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure
The last packet successfully received from the server was 976,464 milliseconds ago. The last packet sent successfully to the server was 974,674 milliseconds ago.
当我运行以下将向AWS RDS发送15MB文件的测试计划时,JMeter中出现了此错误。
LoadTestPl
我的mysql数据库突然变得毫无响应:
OperationalError: (2003, "Can't connect to MySQL server on '<IP_address>' (110)")
在终止这些程序之后:
+-------+-------+----------+-----------+---------+------+-------+------------------+
| Id | User | Host | db | Command | Time | State | Info