# Problem when uninstalling a Module **URL:** \ **Category:** Ignition\ **Created:** [September 30, 2015, 2:14pm UTC](https://forum.inductiveautomation.com/t/problem-when-uninstalling-a-module/10554 "2015-09-30T14:14:59Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![lva](https://avatars.discourse-cdn.com/v4/letter/l/848f3c/32.png) [@lva](https://forum.inductiveautomation.com/u/lva)\ **Post date:** [September 30, 2015, 2:14pm UTC](https://forum.inductiveautomation.com/t/problem-when-uninstalling-a-module/10554/1 "2015-09-30T14:14:59Z")
Hello, I got an error uninstalling a Module example on ignition 7.7.5 on Ubuntu … It happens to me 2 times … Re-installing the ignition server fix this issue … Please find the log below … Any idea how to fix this? Thanks, INFO | jvm 1 | 2015/09/30 16:03:30 | INFO [ModuleManager] [16:03:30,605]: Shutdown of module “com.inductiveautomation.examples.simpletagprovider” completed in 6 ms INFO | jvm 1 | 2015/09/30 16:03:30 | ERROR [ModuleManager] [16:03:30,760]: Error running “uninstall” operation for module “com.inductiveautomation.examples.simpletagprovider”. INFO | jvm 1 | 2015/09/30 16:03:30 | simpleorm.utils.SException$Jdbc: Executing 'SELECT PROJECTS.PROJECTS\_ID, PROJECTS.Name, PROJECTS.Description, PROJECTS.Title, PROJECTS.LastModified, PROJECTS.LastModifiedBy, PROJECTS.EditCount, PROJECTS.PublishedEditCount, PROJECTS.FirstRollbackEditPoint, PROJECTS.UUID, PROJECTS.IsOEMLocked, PROJECTS.OEMLockId, PROJECTS.Enabled FROM PROJECTS WHERE PROJECTS\_ID = ? ’ for [ProjectRecord -1] INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbcHelper.findInDatabase(SSessionJdbcHelper.java:136) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbcHelper.doFindOrCreate(SSessionJdbcHelper.java:60) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbc.find(SSessionJdbc.java:565) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbc.find(SSessionJdbc.java:569) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.project.ProjectManagerImpl.getProject(ProjectManagerImpl.java:450) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.project.ProjectManagerImpl.getGlobalProject(ProjectManagerImpl.java:469) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.SRContext.createScriptManager(SRContext.java:1315) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.script.ScriptHintsManager.createScriptManager(ScriptHintsManager.java:94) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.script.ScriptHintsManager.access$200(ScriptHintsManager.java:15) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.script.ScriptHintsManager$1.moduleStopped(ScriptHintsManager.java:68) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.notifyModuleStartedOrStopped(ModuleManagerImpl.java:2510) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl$5.call(ModuleManagerImpl.java:999) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.executeModuleOperation(ModuleManagerImpl.java:1095) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.uninstallModuleInternal(ModuleManagerImpl.java:993) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.access$1400(ModuleManagerImpl.java:122) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl$UninstallCommand.execute(ModuleManagerImpl.java:1791) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl$Receiver.receiveCall(ModuleManagerImpl.java:1766) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.redundancy.QueueableMessageReceiver.receiveCall(QueueableMessageReceiver.java:45) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.redundancy.RedundancyManagerImpl.dispatchMessage(RedundancyManagerImpl.java:652) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.redundancy.RedundancyManagerImpl$ExecuteTask.run(RedundancyManagerImpl.java:672) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:537) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.FutureTask.run(FutureTask.java:266) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.lang.Thread.run(Thread.java:745) INFO | jvm 1 | 2015/09/30 16:03:30 | Caused by: java.sql.SQLTransactionRollbackException: transaction rollback: serialization failure INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCUtil.sqlException(JDBCUtil.java:403) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCUtil.sqlException(JDBCUtil.java:247) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(JDBCPreparedStatement.java:4655) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCPreparedStatement.executeQuery(JDBCPreparedStatement.java:284) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.localdb.hsql.DelegatingDataSource$DelegatingConnection$DelegatingPreparedStatement.executeQuery(DelegatingDataSource.java:574) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbcHelper.findInDatabase(SSessionJdbcHelper.java:134) INFO | jvm 1 | 2015/09/30 16:03:30 | … 27 more INFO | jvm 1 | 2015/09/30 16:03:30 | Caused by: org.hsqldb.HsqlException: transaction rollback: serialization failure INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.error.Error.error(Error.java:136) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.error.Error.error(Error.java:106) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.Session.executeCompiledStatement(Session.java:1380) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.Session.execute(Session.java:1001) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(JDBCPreparedStatement.java:4647) INFO | jvm 1 | 2015/09/30 16:03:30 | … 31 more INFO | jvm 1 | 2015/09/30 16:03:30 | ERROR [ConfirmationPanel$1] [16:03:30,766]: simpleorm.utils.SException$Jdbc: Executing 'SELECT PROJECTS.PROJECTS\_ID, PROJECTS.Name, PROJECTS.Description, PROJECTS.Title, PROJECTS.LastModified, PROJECTS.LastModifiedBy, PROJECTS.EditCount, PROJECTS.PublishedEditCount, PROJECTS.FirstRollbackEditPoint, PROJECTS.UUID, PROJECTS.IsOEMLocked, PROJECTS.OEMLockId, PROJECTS.Enabled FROM PROJECTS WHERE PROJECTS\_ID = ? ’ for [ProjectRecord -1] INFO | jvm 1 | 2015/09/30 16:03:30 | simpleorm.utils.SException$Jdbc: Executing 'SELECT PROJECTS.PROJECTS\_ID, PROJECTS.Name, PROJECTS.Description, PROJECTS.Title, PROJECTS.LastModified, PROJECTS.LastModifiedBy, PROJECTS.EditCount, PROJECTS.PublishedEditCount, PROJECTS.FirstRollbackEditPoint, PROJECTS.UUID, PROJECTS.IsOEMLocked, PROJECTS.OEMLockId, PROJECTS.Enabled FROM PROJECTS WHERE PROJECTS\_ID = ? ’ for [ProjectRecord -1] INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbcHelper.findInDatabase(SSessionJdbcHelper.java:136) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbcHelper.doFindOrCreate(SSessionJdbcHelper.java:60) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbc.find(SSessionJdbc.java:565) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbc.find(SSessionJdbc.java:569) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.project.ProjectManagerImpl.getProject(ProjectManagerImpl.java:450) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.project.ProjectManagerImpl.getGlobalProject(ProjectManagerImpl.java:469) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.SRContext.createScriptManager(SRContext.java:1315) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.script.ScriptHintsManager.createScriptManager(ScriptHintsManager.java:94) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.script.ScriptHintsManager.access$200(ScriptHintsManager.java:15) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.script.ScriptHintsManager$1.moduleStopped(ScriptHintsManager.java:68) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.notifyModuleStartedOrStopped(ModuleManagerImpl.java:2510) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl$5.call(ModuleManagerImpl.java:999) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.executeModuleOperation(ModuleManagerImpl.java:1095) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.uninstallModuleInternal(ModuleManagerImpl.java:993) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl.access$1400(ModuleManagerImpl.java:122) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl$UninstallCommand.execute(ModuleManagerImpl.java:1791) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.modules.ModuleManagerImpl$Receiver.receiveCall(ModuleManagerImpl.java:1766) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.redundancy.QueueableMessageReceiver.receiveCall(QueueableMessageReceiver.java:45) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.redundancy.RedundancyManagerImpl.dispatchMessage(RedundancyManagerImpl.java:652) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.redundancy.RedundancyManagerImpl$ExecuteTask.run(RedundancyManagerImpl.java:672) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:537) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.FutureTask.run(FutureTask.java:266) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) INFO | jvm 1 | 2015/09/30 16:03:30 | at java.lang.Thread.run(Thread.java:745) INFO | jvm 1 | 2015/09/30 16:03:30 | Caused by: java.sql.SQLTransactionRollbackException: transaction rollback: serialization failure INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCUtil.sqlException(JDBCUtil.java:403) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCUtil.sqlException(JDBCUtil.java:247) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(JDBCPreparedStatement.java:4655) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCPreparedStatement.executeQuery(JDBCPreparedStatement.java:284) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93) INFO | jvm 1 | 2015/09/30 16:03:30 | at com.inductiveautomation.ignition.gateway.localdb.hsql.DelegatingDataSource$DelegatingConnection$DelegatingPreparedStatement.executeQuery(DelegatingDataSource.java:574) INFO | jvm 1 | 2015/09/30 16:03:30 | at simpleorm.sessionjdbc.SSessionJdbcHelper.findInDatabase(SSessionJdbcHelper.java:134) INFO | jvm 1 | 2015/09/30 16:03:30 | … 27 more INFO | jvm 1 | 2015/09/30 16:03:30 | Caused by: org.hsqldb.HsqlException: transaction rollback: serialization failure INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.error.Error.error(Error.java:136) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.error.Error.error(Error.java:106) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.Session.executeCompiledStatement(Session.java:1380) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.Session.execute(Session.java:1001) INFO | jvm 1 | 2015/09/30 16:03:30 | at org.hsqldb.jdbc.JDBCPreparedStatement.fetchResult(JDBCPreparedStatement.java:4647) INFO | jvm 1 | 2015/09/30 16:03:30 | … 31 more ---
**Author:** ![lva](https://avatars.discourse-cdn.com/v4/letter/l/848f3c/32.png) [@lva](https://forum.inductiveautomation.com/u/lva)\ **Post date:** [September 30, 2015, 2:37pm UTC](https://forum.inductiveautomation.com/t/problem-when-uninstalling-a-module/10554/2 "2015-09-30T14:37:57Z")
I also noticed that “Emmergency mode” was activated … (I can see that in the Licensing screen on the admin web page…) ---
**Author:** ![lva](https://avatars.discourse-cdn.com/v4/letter/l/848f3c/32.png) [@lva](https://forum.inductiveautomation.com/u/lva)\ **Post date:** [October 1, 2015, 2:35pm UTC](https://forum.inductiveautomation.com/t/problem-when-uninstalling-a-module/10554/3 "2015-10-01T14:35:13Z")
I just remove the context.getExecutionManager().shutdown(); in the shutdown method and I can’t reproduce this issue anymore … 😃 @Override public void shutdown() { //Clean up the things we’ve registered with the platform, namely, our provider type. try { if (context != null) { //Remove our value update task //if (context.getExecutionManager() != null) { // context.getExecutionManager().shutdown(); //} //Shutdown our provider ourProvider.shutdown(); } } catch (Exception e) { logger.error(“Error stopping Gateway module.”, e); } logger.info(“Gateway module stopped.”); } ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [October 1, 2015, 2:43pm UTC](https://forum.inductiveautomation.com/t/problem-when-uninstalling-a-module/10554/4 "2015-10-01T14:43:26Z")
Yes, you want to unregister your task from the ExecutionManager using the unRegister or unRegisterAll methods, but you DO NOT shut it down - it’s a SHARED ExecutionManager, so the rest of the system is still using it.