1<!--$Id: xa_config.so,v 10.23 2003/06/27 17:38:24 bostic Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB Reference Guide: Configuring Berkeley DB with the Tuxedo System</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<a name="2"><!--meow--></a> 12<table width="100%"><tr valign=top> 13<td><b><dl><dt>Berkeley DB Reference Guide:<dd>Distributed Transactions</dl></b></td> 14<td align=right><a href="../xa/xa_intro.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../xa/faq.html"><img src="../../images/next.gif" alt="Next"></a> 15</td></tr></table> 16<p align=center><b>Configuring Berkeley DB with the Tuxedo System</b></p> 17<p>This information assumes that you have already installed the Berkeley DB 18library.</p> 19<p>First, you must update the resource manager file in Tuxedo. For the 20purposes of this discussion, assume that the Tuxedo home directory is in</p> 21<blockquote><pre>/home/tuxedo</pre></blockquote> 22In that case, the resource manager file will be located in 23<blockquote><pre>/home/tuxedo/udataobj/RM</pre></blockquote> 24Edit the resource manager file, adding the line 25<blockquote><pre>BERKELEY-DB:db_xa_switch:-L${DB_INSTALL}/lib -ldb \ 26 -lsocket -ldl -lm</pre></blockquote> 27<p>where ${DB_INSTALLHOME} is the directory into which you installed the Berkeley DB 28library.</p> 29<p><b>Note that the previous load options are for a Sun Microsystems 30Solaris 5.6 Sparc installation of Tuxedo, and may not be correct for 31your system.</b></p> 32<p>Next, you must build the transaction manager server. To do this, use the 33Tuxedo <b>buildtms</b>(1) utility. The buildtms utility will create 34the Berkeley-DB resource manager in the directory from which it was run. 35The parameters to buildtms should be</p> 36<blockquote><pre>buildtms -v -o DBRM -r BERKELEY-DB</pre></blockquote> 37<p>This will create an executable transaction manager server, DBRM, which is 38called by Tuxedo to process begins, commits, and aborts.</p> 39<p>Finally, you must make sure that your TUXCONFIG environment variable 40identifies an ubbconfig file that properly identifies your resource 41managers. In the GROUPS section of the ubb file, you should identify the 42group's LMID and GRPNO, as well as the transaction manager server name 43"TMSNAME=DBRM." You must also specify the OPENINFO parameter, setting it 44equal to the string</p> 45<blockquote><pre>rm_name:dir</pre></blockquote> 46<p>where rm_name is the resource name specified in the RM file (that is, 47BERKELEY-DB) and dir is the directory for the Berkeley DB home environment 48(see <a href="../../api_c/env_open.html">DB_ENV->open</a> for a discussion of Berkeley DB environments).</p> 49<p>Because Tuxedo resource manager startup accepts only a single string 50for configuration, any environment customization that might have been 51done via the config parameter to <a href="../../api_c/env_open.html">DB_ENV->open</a> must instead be done 52by placing a <a href="../../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> file in the Berkeley DB environment directory. 53See <a href="../../ref/env/naming.html">Berkeley DB File Naming</a> for further 54information.</p> 55<p>Consider the following configuration. We have built a transaction 56manager server, as described previously. We want the Berkeley DB environment 57to be <b>/home/dbhome</b>, our database files to be maintained in 58<b>/home/datafiles</b>, our log files to be maintained in 59<b>/home/log</b>, and we want a duplexed server.</p> 60<p>The GROUPS section of the ubb file might look like the following</p> 61<blockquote><pre>group_tm LMID=myname GRPNO=1 TMSNAME=DBRM TMSCOUNT=2 \ 62 OPENINFO="BERKELEY-DB:/home/dbhome"</pre></blockquote> 63<p>There would be a <a href="../../ref/env/db_config.html#DB_CONFIG">DB_CONFIG</a> configuration file in the directory 64<b>/home/dbhome</b> that contained the following two lines:</p> 65<blockquote><pre>set_data_dir /home/datafiles 66set_lg_dir /home/log</pre></blockquote> 67<p>Finally, the ubb file must be translated into a binary version using 68Tuxedo's <b>tmloadcf</b>(1) utility, and then the pathname of that 69binary file must be specified as your TUXCONFIG environment variable.</p> 70<p>At this point, your system is properly initialized to use the Berkeley DB 71resource manager.</p> 72<p>See <a href="../../api_c/db_class.html">db_create</a> for further information on accessing data files 73using XA.</p> 74<table width="100%"><tr><td><br></td><td align=right><a href="../xa/xa_intro.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../xa/faq.html"><img src="../../images/next.gif" alt="Next"></a> 75</td></tr></table> 76<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 77</body> 78</html> 79
