Для аутентификации использую JDBCRealm.
По ночам, когда сервер никто 'не трогает'(т.е. нет обращений) выскакивают вот такие exception's
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16 . 08 . 2005 7 : 57 : 54 org.apache.catalina.realm.JDBCRealm getPassword
SEVERE: Exception performing authentication
java.sql.SQLException: Communications link failure during commit(). Transaction resolution unknown.
at com.mysql.jdbc.Connection.commit(Connection.java: 2155 )
at org.apache.catalina.realm.JDBCRealm.getPassword(JDBCRealm.java: 563 )
at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java: 399 )
at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java: 347 )
at org.apache.catalina.authenticator.BasicAuthenticator.authenticate(BasicAuthenticator.java: 181 )
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java: 446 )
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java: 126 )
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java: 105 )
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java: 107 )
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java: 148 )
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java: 856 )
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java: 744 )
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java: 527 )
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java: 80 )
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java: 684 )
at java.lang.Thread.run(Unknown Source)
Откуда? Может mysql отрубает tomcat по таймауту?
