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| Re: SEVERE: Unable to open connection. [message #521146 is a reply to message #521084] |
Tue, 16 March 2010 15:01   |
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I assume you have the same version of the jdbc driver in the production
systems
WEB-INF\platform\plugins\org.eclipse.birt.report.data.oda.jd bc_2.5.1.v20090821\drivers
directory?
Why do you have to setup the ssh tunnel? Why not just change the url
from
jdbc:mysql://localhost/DB_PROBE
to
jdbc:mysql://mysqlserverip:3306/DB_PROBE
Jason
Strahd_za wrote:
> I'm rather new to BIRT and was getting along just fine, but now I'm
> stuck with a database connection problem.
>
> (Using Birt 2.5.1)
> I created my report on my desktop with a JDBC Connection to my MYSQL
> database on another machine, by hardcoding the IP of the MYSQL server.
> This worked fine until of course when I try to deploy the report to
> production and the IP is different.
>
> So, I set up a SSH tunnel to forward localhost:3306 to mysqlserver:3306.
> Mysqlserver is the same machine the reprots will be deployed to,
> assuming then that the deployed report would happily connect to
> localhost on the production server.
>
> The report (and I've recreated the simplest of reports to test with)
> works on my desktop, but when I deploy the report to the remote machine
> I keep getting:
>
> 16 Mar 2010 2:14:15 PM
> org.eclipse.birt.data.engine.odaconsumer.ConnectionManager openConnection
> SEVERE: Unable to open connection.
> org.eclipse.birt.report.data.oda.jdbc.JDBCException: There is an error
> in get connection, Communications link failure
>
> The last packet sent successfully to the server was 0 milliseconds ago.
> The driver has not received any packets from the server..
> at
> org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.doCo nnect(JDBCDriverManager.java:262)
>
> at
> org.eclipse.birt.report.data.oda.jdbc.JDBCDriverManager.getC onnection(JDBCDriverManager.java:212)
>
> at
> org.eclipse.birt.report.data.oda.jdbc.Connection.connectByUr l(Connection.java:234)
>
> at
> org.eclipse.birt.report.data.oda.jdbc.Connection.open(Connec tion.java:160)
> at
> org.eclipse.datatools.connectivity.oda.consumer.helper.OdaCo nnection.open(OdaConnection.java:238)
>
> at
> org.eclipse.birt.data.engine.odaconsumer.ConnectionManager.o penConnection(ConnectionManager.java:180)
>
> at
> org.eclipse.birt.data.engine.executor.DataSource.newConnecti on(DataSource.java:193)
>
> at
> org.eclipse.birt.data.engine.executor.DataSource.open(DataSo urce.java:181)
>
> The connection in the rptdesign file is as follows
>
> <data-sources>
> <oda-data-source
> extensionID="org.eclipse.birt.report.data.oda.jdbc" name="Data Source"
> id="7">
> <text-property name="displayName"></text-property>
> <list-property name="privateDriverProperties">
> <ex-property>
> <name>contentBidiFormatStr</name>
> <value>ILYNN</value>
> </ex-property>
> <ex-property>
> <name>metadataBidiFormatStr</name>
> <value>ILYNN</value>
> </ex-property>
> </list-property>
> <property name="odaDriverClass">com.mysql.jdbc.Driver</property>
> <property
> name="odaURL">jdbc:mysql://localhost/DB_PROBE</property>
> <property name="odaUser">probe</property>
> <encrypted-property name="odaPassword"
> encryptionID="base64">Y2xpZW50X3Bhc3M=</encrypted-property >
> </oda-data-source>
> </data-sources>
>
> And I can happily connect to mysql from localhost with username probe
> and supplied password. But for some reason BIRT does not want to connect
> via jdbc driver ??
> Help please.
> Thanx
>
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| Re: SEVERE: Unable to open connection. [message #824705 is a reply to message #521146] |
Tue, 20 March 2012 00:39 |
 Meghan Missing name
Messages: 16
Registered: November 2010 |
Junior Member |
|
|
Jason,
I'm wondering if you might have some insight. I have been working in the BIRT tool for some time and have established a connection to MySQL using the jdbc driver (v5.1). It has worked consistently up until about a week ago when all of a sudden it stopped working. I get the following error message:
'There is an error in get connection. Communication link failure. The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server'
Nothing, to my knowledge has changed. Do you know where I can look next to troubleshoot? At this point all of my report editing/creation has come to a stand still so I'm really stuck. Any help is appreciated.
Cheers.
Meghan
[Updated on: Tue, 20 March 2012 00:40] Report message to a moderator |
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| Re: SEVERE: Unable to open connection. [message #825257 is a reply to message #824705] |
Tue, 20 March 2012 17:04 |
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Meghan,
I get a similar error to this when MySQL is down. Can you connect to it
with the MySQL tools on the same machine?
Jason
On 3/19/2012 8:39 PM, Meghan Mising name wrote:
> Jason,
>
> I'm wondering if you might have some insight. I have been working in the
> BIRT tool for some time and have established a connection to MySQL using
> the jdbc driver (v5.1). It has worked consistently up until about a week
> ago when all of a sudden it stopped working. I get the following error
> message:
>
> 'There is an error in get connection. Communication link failure. The
> last packet sent successfully to the server was 0 milliseconds ago. The
> driver has not received any packets from the server'
> Nothing, to my knowledge has changed. Do you know where I can look next
> to troubleshoot? At this point all of my report editing/creation has
> come to a stand still so I'm really stuck. Any help is appreciated.
>
> Cheers.
> Meghan
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