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H2 database problems, running jBPM 5.1 demo
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created by <a href="http://community.jboss.org/people/michael.wagner">Michael Wagner</a> in <i>jBPM</i> - <a href="http://community.jboss.org/message/612944#612944">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi,</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I am very new to jBPM, features looks impressive. I tried the demo since yesterday and run always again in problems with the database. Yesterday I had some "transaction not possible" problems, now I run into: "Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-157] 90020/90020"</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>What I have done to get this error:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>1) download the full installer</p><p>2) run "ant install.demo"</p><p>3) run "ant start.demo"</p><p>4) play with the example in eclipse (works very well)</p><p>5) start the console in the browser and clicked on "process history"</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Then the error occurs. Restarting by calling "ant stop.demo" and then "ant start.demo" does not help. Cosole login is showing up, after login just a white site is displayed. The log showing:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>2011-07-01 11:27:36,882 WARN  [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] (main) Throwable while attempting to get a new connection: null</p><p>org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (org.h2.jdbc.JdbcSQLException: Datenbank wird wahrscheinlich bereits benutzt: "Locked by another process". Mögliche Lösungen: alle Verbindungen schliessen; Server Modus verwenden</p><p>Database may be already in use: "Locked by another process". Possible solutions: close all other connection(s); use the server mode [90020-124]</p><p>    at org.h2.message.Message.getSQLException(Message.java:111)</p><p>    at org.h2.message.Message.getSQLException(Message.java:122)</p><p>    at org.h2.message.Message.getSQLException(Message.java:75)</p><p>    at org.h2.store.FileLock.getExceptionAlreadyInUse(FileLock.java:474)</p><p>    at org.h2.store.FileLock.lockFile(FileLock.java:333)</p><p>    at org.h2.store.FileLock.lock(FileLock.java:131)</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I will no reboot windows and hope this helps <span> ;) </span></p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Is there something about the H2 installation I overlooked? It is important for us the the process engine NEVER runs into such a lock. So I have to find out why this happens. Somebody had the same problems?</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Michael</p></div>
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