Question

我们在重新启动应用服务器时遇到错误。

通常当我们重新启动应用服务器时，它会自行创建连接。

但是它低于错误。

2013-11-05 04:06:00,029 WARN  [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (pool-11-thread-1) Throwable while attempting to get a new connection: null
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (java.sql.SQLException: null,  message from server: "Host 'jade2.ftdi.com' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'")

Observed below log also:
2013-11-05 04:07:18,074 INFO  [STDOUT] (pool-11-thread-1) DEBUG 2013-11-05 04:07:18,074 [pool-11-thread-1] com.ftd.core.datasource.model.DataSourceHealthMonitor: doDBServerMaintenance path to db server maintenance files jboss.server.data.dir
2013-11-05 04:07:18,074 ERROR [STDERR] (Thread-12) java.lang.OutOfMemoryError: Java heap space
2013-11-05 04:07:20,844 INFO  [STDOUT] (http-0.0.0.0-8713-2) ERROR 2013-11-05 04:07:16,673 [http-0.0.0.0-8713-2] com.ftd.core.datasource.exceptionhandlers.NormalExecutionHandler: Caught TransactionException.org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction; nested exception is com.ftd.core.datasource.exceptions.ConnectionException: nested exception is com.ftd.core.datasource.exceptions.DataSourceException: All Databases are down!!!

在此错误之后我们的DBA发布了刷新主机;在DB方面，但没有运气，我们仍然得到相同的错误。修复它

Answer 1

java.lang.OutOfMemoryError：Java堆空间

也许您应该尝试增加VM的堆大小

重新启动应用服务器获取错误？

1 个答案: