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dhis2-devs team
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Mailing list archive
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Message #06399
Re: Troubles with database communication
Sorry for my laziness on this.
My hibernate.properties
hibernate.dialect = org.hibernate.dialect.MySQLDialect
hibernate.connection.driver_class = com.mysql.jdbc.Driver
##hibernate.connection.url =
jdbc:mysql://localhost/dhis2_pub?useUnicode=true&characterEncoding=UTF-8
hibernate.connection.url =
jdbc:mysql://localhost/dhis204?useUnicode=true&characterEncoding=UTF-8
hibernate.connection.username = dhis
hibernate.connection.password = dhis
hibernate.hbm2ddl.auto = update
By this you are right. I am using unix socket when setting with localhost on
URL. I must write 127.0.0.1.
I have changed and I am waiting to see it again.
This happened not only with importing and etc... it happened on the login
too.
Thank you
Caveman
On Wed, Jun 23, 2010 at 9:01 AM, Bob Jolliffe <bobjolliffe@xxxxxxxxx> wrote:
> I can see from the status message that unix domain sockets are being
> used by the mysql client. Your hibernate connection will use tcp/ip.
>
> The problem seems definitely to be with the transport layer -
> "Expected to read 4 bytes, read 0 bytes before connection was
> unexpectedly lost". So the socket channel definitely goes bad on you
> :-(
>
> Orvalho is this problem completely random or can you think is there
> any pattern to it? For example I have seen a problem with mysql if
> you are doing a very large import and the size of the mysql packet
> (with all the multiple inserts) exceeds a hard limit - there is a
> setting to increase this. But from what you are saying (from time to
> time) I don't think this is the case here.
>
> Is the mysql server on the same machine as the dhis web server?
>
> What is the server os and version?
>
> Regards
> Bob
>
> On 23 June 2010 07:09, Jason Pickering <jason.p.pickering@xxxxxxxxx>
> wrote:
> > Can you send your hibernate.properties file (otherwise privately)?
> >
> > Is you MySQL TCP/IP sockets available on 127.0.0.1 (not Unix pipes)?
> >
> > Regards,
> > Jason
> >
> >
> > On Wed, Jun 23, 2010 at 5:32 AM, Orvalho Augusto <orvaquim@xxxxxxxxx>
> wrote:
> >> >From time to time my DHIS stalls and report me this:
> >> =========================================================
> >> Jun 23, 2010 5:15:53 AM org.apache.catalina.core.StandardWrapperValve
> invoke
> >> SEVERE: Servlet.service() for servlet default threw exception
> >> org.springframework.transaction.CannotCreateTransactionException: Could
> not
> >> open Hibernate Session for transaction; nested exception is
> >> org.hibernate.TransactionException: JDBC beg
> >> in failed:
> >> at
> >>
> org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:599)
> >> at
> >>
> org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:374)
> >> at
> >>
> org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:263)
> >> at
> >>
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:101)
> >> at
> >>
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
> >> at
> >>
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> >> at $Proxy72.loadUserByUsername(Unknown Source)
> >> at
> >>
> org.springframework.security.providers.dao.DaoAuthenticationProvider.retrieveUser(DaoAuthenticationProvider.java:83)
> >> at
> >>
> org.springframework.security.providers.dao.AbstractUserDetailsAuthenticationProvider.authenticate(AbstractUserDetailsAuthenticationProvider.java:121)
> >> at
> >>
> org.springframework.security.providers.ProviderManager.doAuthentication(ProviderManager.java:188)
> >> at
> >>
> org.springframework.security.AbstractAuthenticationManager.authenticate(AbstractAuthenticationManager.java:46)
> >> at
> >>
> org.springframework.security.ui.webapp.AuthenticationProcessingFilter.attemptAuthentication(AuthenticationProcessingFilter.java:82)
> >> at
> >>
> org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.java:259)
> >> at
> >>
> org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
> >> at
> >>
> org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
> >> at
> >>
> org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.java:235)
> >> at
> >>
> org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.java:53)
> >> at
> >>
> org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:390)
> >> at
> >>
> org.springframework.security.util.FilterChainProxy.doFilter(FilterChainProxy.java:175)
> >> at
> >>
> org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
> >> at
> >>
> org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
> >> at
> >>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> >> at
> >>
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> >> at
> >>
> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
> >> at
> >>
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
> >> at
> >>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> >> at
> >>
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> >> at
> >>
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> >> at
> >>
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> >> at
> >>
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
> >> at
> >>
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
> >> at
> >>
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> >> at
> >>
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
> >> at
> >>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
> >> at
> >>
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
> >> at
> >> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
> >> at java.lang.Thread.run(Thread.java:636)
> >> Caused by: org.hibernate.TransactionException: JDBC begin failed:
> >> at
> >> org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:68)
> >> at
> >> org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1326)
> >> at
> >>
> org.springframework.orm.hibernate3.HibernateTransactionManager.doBegin(HibernateTransactionManager.java:558)
> >> ... 36 more
> >> Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
> >> Communications link failure
> >>
> >> Last packet sent to the server was 0 ms ago.
> >> at
> sun.reflect.GeneratedConstructorAccessor151.newInstance(Unknown
> >> Source)
> >> at
> >>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> >> at
> java.lang.reflect.Constructor.newInstance(Constructor.java:532)
> >> at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
> >> at
> >>
> com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1074)
> >> at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2985)
> >> at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2871)
> >> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3414)
> >> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1936)
> >> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2060)
> >> at
> com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2536)
> >> at
> >> com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4874)
> >> at
> >>
> com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:881)
> >> at
> >> org.hibernate.transaction.JDBCTransaction.begin(JDBCTransaction.java:63)
> >> ... 38 more
> >> Caused by: java.io.EOFException: Can not read response from server.
> Expected
> >> to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
> >> at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2431)
> >> at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2882)
> >> ... 46 more
> >>
> >> =========================================================
> >>
> >> And without any action it starts to work by itself.
> >>
> >> MySQL is fine. I have checked it with dhis user and in fact there is a
> dhis
> >> user connected:
> >>
> >> =========================================================
> >> [root@DhisServer tomcat6]# mysql -u dhis -p
> >>
> >> Welcome to the MySQL monitor. Commands end with ; or \g.
> >> Your MySQL connection id is 1346
> >> Server version: 5.1.30-log MySQL Community Server (GPL)
> >>
> >> Type 'help;' or '\h' for help. Type '\c' to clear the buffer.
> >>
> >> mysql> status
> >> --------------
> >> mysql Ver 14.14 Distrib 5.1.30, for unknown-linux-gnu (x86_64) using
> >> readline 5.1
> >>
> >> Connection id: 1346
> >> Current database:
> >> Current user: dhis@localhost
> >> SSL: Not in use
> >> Current pager: stdout
> >> Using outfile: ''
> >> Using delimiter: ;
> >> Server version: 5.1.30-log MySQL Community Server (GPL)
> >> Protocol version: 10
> >> Connection: Localhost via UNIX socket
> >> Server characterset: utf8
> >> Db characterset: utf8
> >> Client characterset: latin1
> >> Conn. characterset: latin1
> >> UNIX socket: /var/lib/mysql/mysql.sock
> >> Uptime: 10 days 18 hours 4 min 44 sec
> >>
> >> Threads: 3 Questions: 141592 Slow queries: 0 Opens: 1220 Flush
> tables:
> >> 1 Open tables: 511 Queries per second avg: 0.152
> >> --------------
> >>
> >> mysql> show processlist;
> >>
> +------+------+-----------------+---------+---------+------+-------+------------------+
> >> | Id | User | Host | db | Command | Time | State |
> >> Info |
> >>
> +------+------+-----------------+---------+---------+------+-------+------------------+
> >> | 1341 | dhis | localhost:58090 | dhis204 | Sleep | 540 | |
> >> NULL |
> >> | 1342 | dhis | localhost:41792 | dhis204 | Sleep | 540 | |
> >> NULL |
> >> | 1346 | dhis | localhost | NULL | Query | 0 | NULL |
> show
> >> processlist |
> >>
> +------+------+-----------------+---------+---------+------+-------+------------------+
> >> 3 rows in set (0.00 sec)
> >>
> >> ===================================================
> >>
> >>
> >> I am using the last stable DHIS war file (2.0.4).
> >> My JAVA_OPTS="-Xms128m -Xmx700m -XX:MaxPermSize=256m"
> >>
> >> I am on Fedora Linux: Fedora release 10 (Cambridge)
> >> And Tomcat 6.0.18.
> >>
> >> Can you help me guys?
> >>
> >> Caveman
> >>
> >>
> >> _______________________________________________
> >> Mailing list: https://launchpad.net/~dhis2-devs<https://launchpad.net/%7Edhis2-devs>
> >> Post to : dhis2-devs@xxxxxxxxxxxxxxxxxxx
> >> Unsubscribe : https://launchpad.net/~dhis2-devs<https://launchpad.net/%7Edhis2-devs>
> >> More help : https://help.launchpad.net/ListHelp
> >>
> >>
> >
> >
> >
> > --
> > --
> > Jason P. Pickering
> > email: jason.p.pickering@xxxxxxxxx
> > tel:+260968395190
> >
> > _______________________________________________
> > Mailing list: https://launchpad.net/~dhis2-devs<https://launchpad.net/%7Edhis2-devs>
> > Post to : dhis2-devs@xxxxxxxxxxxxxxxxxxx
> > Unsubscribe : https://launchpad.net/~dhis2-devs<https://launchpad.net/%7Edhis2-devs>
> > More help : https://help.launchpad.net/ListHelp
> >
>
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