CODEWITHSUNDEEP
javamysql
user2796468
user2796468

Reputation: 25

Restarting the app server getting error?

we are getting error when restarting the app server.

generally when we restart the app server it will create connections itself.

but it was throwing below error.

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!!!

After this error Our DBA'S issued flush hosts; in DB side but no luck still we are getting same error.how fix it

Upvotes: 0

Views: 202

Answers (1)

Xiaoxi Zhang
Xiaoxi Zhang

Reputation: 681

java.lang.OutOfMemoryError: Java heap space

Maybe you should try to increase the heap size of VM

Upvotes: 1

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