Re: Help using JDBC realm with MySQL
I had the same problem in Windows 2000 and InnoDB tables, the relaxautocommit worked but the parameter has a leading UNDERSCORE: jdbc:mysql://localhost/peopleshare?_relaxAutocommit=trueetc... I found it by code inspection. I don't know if it works under Linux, I'm still fighting with access control problems, but it should work. Shawn A. Wilson wrote: Well, I tried adding the relaxAutocommit=true parameter but I still get the same message. Arg... this is not making any sense. Do my tables need to be of a specific type? I created them without any options so they should be MyISAM. -shawn http://www.shawn-wilson.com On Thu, 11 Apr 2002, Dennis Doubleday wrote: Add the following parameter to your connection URL: relaxAutocommit=true So it should look like: jdbc:mysql://localhost/peopleshare?relaxAutocommit=trueuser=hiddenpass word=hidden -Original Message- From: Shawn A. Wilson [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 2:33 PM To: Tomcat Users List Subject: Re: Help using JDBC realm with MySQL Does nobody know a solution to get around this problem? I have received no replies and I desparately need to know how to get around the Cannot disable AUTO_COMMIT error with JDBC realms and MySQL. -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED] -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED] -- Fabrizio Giudici, Ph.D. - Senior Consultant Java(TM) Architect, Mentor, Senior Writer email [EMAIL PROTECTED] mobile +39 3481506941 - fax +39 (0)2700510536 Member of ADI (Italian Ph.D. Association)
RE: Tyrex Tomcat
I posted a response about this topic a couple of weeks ago. You must go to tyrex, download the sources, get the ots.jar package and put it into %TOMCAT_HOME%/common/lib. There's a small dependence in tyrex upon CORBA classes, ant ots.jar contains the required files. Hi. -- Fabrizio Giudici, Ph.D. - Senior Consultant Java(TM) Architect, Mentor, Senior Writer email [EMAIL PROTECTED] mobile +39 348 1506941 - fax +39 02 700510536 Member of ADI (Italian Ph.D. Association) -Original Message- From: Mark Muffett [mailto:[EMAIL PROTECTED]] Sent: martedì 12 febbraio 2002 14.12 To: [EMAIL PROTECTED] Subject: Tyrex Tomcat I want to use the JNDI facilties for DataSources. I have Tomcat 4.0.1 and I'm using tyrex-0.9.7.jar (which comes with Tomcat). I can't get it to work. It compiles, but when I run the page and try to get a database connection, it gives the error: java.lang.NoClassDefFoundError: org/omg/CosTransactions/Inactive at tyrex.server.TransactionServer.createTransactionDomain(Transaction Server.jav a:200) at tyrex.server.TransactionServer.getTransactionDomain(TransactionSer ver.java:1 83) at tyrex.tm.Tyrex.(Tyrex.java:77) at tyrex.tm.ResourceManager.run(ResourceManager.java:118) at java.security.AccessController.doPrivileged(Native Method) at tyrex.tm.ResourceManager.enlistResource(ResourceManager.java:91) at tyrex.jdbc.EnlistedConnection.enlist(EnlistedConnection.java:241) at tyrex.jdbc.EnlistedConnection.(EnlistedConnection.java:129) at tyrex.jdbc.ServerDataSource.getConnection(ServerDataSource.java:258) at tyrex.jdbc.ServerDataSource.getConnection(ServerDataSource.java:223) at AccessLog.doGet(AccessLog.java:190) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) Have I made a stupid error? or should I use a different version of Tyrex, or Tomcat, or should I try to find omg.jar (which I have searched for, but can find only on the Orbix site). Thanks for any help Mark -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED] -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Tyrex transactions: a workaround
Hi.
After some investigations about tyrex problems with
transactions and messing up with tyrex and catalina
sources I was able to analyze the problem (actually
two different bugs) and to find a quick and dirty workaround.
THE PROBLEM 1
=
Tyrex defines, among others, two kinds of DataSources:
- tyrex.jdbc.xa.EnabledDataSource
is not aware of pooling and it does not register
its connections with the transaction manager
- tyrex.jdbc.ServerDataSource
is aware of pooling and registers its connections
with the transaction manager
Guess what, it happens that tomcat 4 is giving us
the FORMER DataSource, so transactions are not working
(and pooling neither).
The factory for Tyrex datasources is
org.apache.naming.factory.TyrexDataSourceFactory
which lives in %CATALINA_HOME%/lib/naming-factory.jar.
The logics inside the factory create a
tyrex.jdbc.ServerDataSource only if the resource class
type is explicitly set to tyrex.jdbc.ServerDataSource.
It appears that the problem should be solved by properly
setting the 'type' attribute of Resource in server.xml:
Resource name=jdbc/adi auth=Container
type=tyrex.jdbc.ServerDataSource/
Unfortunately this does not work, and I believe this is a
tomcat bug (in facts, try to set 'type' to I.DO.NOT.EXIST
and you'll discover that catalina doesn't notice it).
The Resource gets always bound in JNDI with type
javax.sql.DataSource.
I haven't checked the bug archive yet to find if this is
a known bug; in the meantime I found a workaround that
works. I consider it a quick-and-dirty fix to help us
working with our applications until apache staff fixes the
problem.
THE WORKAROUND
==
Unfortunately we have to patch catalina :-(
Download catalina sources (I worked with 4.0.2-b2 but it
works well also with 4.0.1) and edit
\src\share\org\apache\naming\factory\TyrexDataSourceFactory:
214 if (ref.getClassName().equals
215 (tyrex.jdbc.ServerDataSource)) {
216
217 ServerDataSource sds =
218 new
ServerDataSource((javax.sql.XADataSource) ds);
219
220 currentRefAddr = ref.get(DESCRIPTION);
221 if (currentRefAddr != null)
222 sds.setDescription
223
(currentRefAddr.getContent().toString());
224
225 return sds;
226
227 }
228
229 return ds;
REMOVE LINES 214,215 and 227, 228, 229 so that the ServerDataSource is
always created.
To compile the code, if you don't want to do a complete build of
catalina, do the following:
1. get the %CATALINA_HOME%\server\lib\catalina.jar
2. compile TyrexDataSourceFactory.java including catalina.jar, servlet.jar
and jdbc2_0-stdext.jar in the classpath
3. replace the TyrexDataSourceFactory.class in catalina.jar with the
compiled one.
THE PROBLEM 2
=
A this point, you will find that every transaction operation
fails with catalina complaining about a org.omb.corba.XXX
missing class. The problem is that tyrex depends on a couple
of corba classes (even if you don't use them working locally).
To solve this, you must download tyrex distribution from
tyrex.exolab.org, find ots.jar and add it into
%CATALINA_HOME%\common\lib. At this point I was succesful in
having my transaction works!!!
Summing up, the bugs are:
1. the type attribute for Resource does not work
2. apache should include ots.jar with its distribution
Neither is a tyrex bug.
PS. There is a third, small problem that you can live with.
tyrex-0.9.7.0 misses a message resource file, so you will find
a complaining warning (and in case of problems you won't get
the correct diagnostic). If you want to fix it, download tyrex
sources from exolab, and add to the .jar the file
tyrex\utils\resources\message.properties. I sent an email to
the tyrex mailing list a couple of weeks ago, asking them if
it possible to quickly release a 0.9.7.1 with the missing file
added... but I got no reply.
If you manage in following my instructions and the thing
works for you, please let me know (to confirm my analisys).
If my analisys gets confirmed, I will post a message to the
tomcat-dev m.l. (and/or register a bug with the damn bug tracking
thing if I understand how to use it :-)
--
Fabrizio Giudici, Ph.D. - Senior Consultant
Java(TM) Architect, Mentor, Senior Writer
email [EMAIL PROTECTED]
mobile +39 348 1506941 - fax +39 02 700510536
Member of ADI (Italian Ph.D. Association)
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RE: Tyrex transactions: a workaround
Unfortunately this does not work, and I believe this is a tomcat bug (in facts, try to set 'type' to I.DO.NOT.EXIST and you'll discover that catalina doesn't notice it). The Resource gets always bound in JNDI with type javax.sql.DataSource. Remy make me understand that this is not a bug in the way I described it. My problem was that I had declared the resource twice, both in server.xml and web.xml; in the latter I used javax.sql.DataSource and it overrode the former. Nevertheless, removing the entry from web.xml and using tyrex.jdbc.ServerDataSource doesn't work, so it seems that the workaround is still needed. I will try again tomorrow. -- Fabrizio Giudici, Ph.D. - Senior Consultant Java(TM) Architect, Mentor, Senior Writer email [EMAIL PROTECTED] mobile +39 348 1506941 - fax +39 02 700510536 Member of ADI (Italian Ph.D. Association) -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
RE: Tyrex transactions: a workaround
Nevertheless, removing the entry from web.xml and using tyrex.jdbc.ServerDataSource doesn't work, so it seems that the workaround is still needed. I will try again tomorrow. Thanks to Remy, I've finally discovered that we don't need to patch catalina for tyrex transaction to work. Finally, both with 4.0.1 and 4.0.2-b2, you just need to configure your JDBC resources as follows (excerpt from server.xml): Context path=/newadi docBase=webapps debug=0 privileged=false Resource name=jdbc/adi auth=Container type=tyrex.jdbc.ServerDataSource/ ResourceParams name=jdbc/adi parameter namefactory/name valueorg.apache.naming.factory.TyrexDataSourceFactory/value /parameter parameter nameuser/name valuesystem/value /parameter parameter namepassword/name valuemanager/value /parameter parameter namedriverClassName/name valueoracle.lite.poljdbc.POLJDBCDriver/value /parameter parameter namedriverName/name valuejdbc:polite:adi/value /parameter /ResourceParams /Context The important things are: 1. the attribute type=tyrex.jdbc.ServerDataSource for the Resource 2. the 'factory' parameter set for ResourceParams to org.apache.naming.factory.TyrexDataSourceFactory I remind you that you will still need to put ots.jar from tyrex sources into %CATALINA_HOME%/common/lib, and that tyrex-0.9.7.0 will complain about a missing message.properties file (but it will work). That's all. -- Fabrizio Giudici, Ph.D. - Senior Consultant Java(TM) Architect, Mentor, Senior Writer email [EMAIL PROTECTED] mobile +39 348 1506941 - fax +39 02 700510536 Member of ADI (Italian Ph.D. Association) -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
