Memory Issues Running Under Tomcat

These steps might solve problems related to the release of memory or to container tag pooling:

enablepooling = false

Java Out of Memory Error

If you encounter a Java out of memory error, try increasing your Java heap size setting. See Setting JVM Options for Application Servers. As a minimum, add -Xms2048m -Xmx4096m to your JAVA_OPTS setting. You may need to increase this setting according to your usage.

This Java option is set within the application server, so you must restart your application server.

Configuration File Locations

You'll find JasperReports Server configuration properties specific to your application server in the following files.

Tomcat Installed Using apt-get/yum

Setting CATALINA_HOME

Go to the section of the default_master.properties that looks like this:

# Tomcat app server root dirappServerDir = C:\Program Files\Apache Software Foundation\Tomcat 9.0# appServerDir = /home/devuser/apache-tomcat-9.0# if linux package managed tomcat instance, set two properties below# CATALINA_HOME = /usr/share/tomcat9# CATALINA_BASE = /var/lib/tomcat9[/code]                    

and change which lines are commented so it looks like this:

# Tomcat app server root dir# appServerDir = C:\Program Files\Apache Software Foundation\Tomcat 9.0 # appServerDir = /home/devuser/apache-tomcat-9.0# if linux package managed tomcat instance, set two properties belowCATALINA_HOME = /usr/share/tomcat9CATALINA_BASE = /var/lib/tomcat9[/code]                    

Note that you must set both CATALINA_HOME and CATALINA_BASE.

Database Driver Location

After installing JasperReports Server, make sure there's a copy of the database driver file in the /usr/share/tomcat9/webapps/jasperserver/WEB-INF/lib directory. If it's not there, copy the driver to this location. For example, for PostgreSQL, you can copy the driver from the

<js-install>/buildomatic/conf_source/db/postgresql/jdbc directory.

JBoss Modifications

JBoss 7.0.0 Startup JDBC Version Error

The installation with JBoss EAP 7.0.0 may fail with the following error: "Detected Elasticsearch JDBC jar but cannot retrieve its version." In this case, you can remove the JAR file from the JasperReports Server WAR file so that the installation and startup can proceed.

zip -d jasperserver-pro.war WEB-INF/lib/x-pack-sql-jdbc-7.6.0.jar

You can verify that the JAR file has been removed with the following Linux command:

jar -tf jasperserver-pro.war | grep x-pack*

./js-ant deploy-webapp-pro

JBoss 7 Startup Timeout Error

JBoss 7 has a default startup time period. If your JBoss 7 takes longer than 60 seconds to start or deploy, you may receive the following error:

“(DeploymentScanner-threads - 1) Did not receive a response to the deployment operation within the allowed timeout period [60 seconds]. Check the server configuration file and the server logs to find more about the status of the deployment”.

To fix this, you need to increase your deployment-timeout setting as follows:

cd <jboss>/standalone/configuration

On server restart, your system will have the specified time to start up.

Using a Non-default JBoss Profile

If JBoss is your application server, and you’re using a profile other than the default, you need to set the jboss.profile property before running the js-install script in Installing the WAR File Using js-install Scripts:

<js-install>/buildomatic/build_conf/default/app.srv.properties

from

# jboss.profile = default

to

jboss.profile = <your_profile>

Using JBoss with Non-Latin Characters

If JBoss is your application server, and your organization is created with non-Latin characters, you will need to edit the standalone.xml configuration file.

......</extensions> <system-properties>  <property name="org.apache.catalina.connector.URI_ENCODING" value="UTF-8"/>  <property name="org.apache.catalina.connector.USE_BODY_ENCODING_FOR_QUERY_STRING" value="true"/></system-properties>[/code]

Maximum Post Size in Wildfly

If you're upgrading or importing on some versions of Wildfly and your repository or other import file is large, the import may fail and the connection may be reset. In this case, you may need to set max-post-size. To do this, open the file <wildfly-home>standalone/configuration/standalone.xml and add or change the max-post-size attribute of the http-listener property, for example:

Disabling User Session Persistence in Application Servers

JasperReports Server stores non-serializable data in its user sessions, which can cause errors after restarting your application server:

Exception loading sessions from persistent storage

Cause: java.io.NotSerializableException ...

The errors appear in the JasperReports Server log when users log in after the application server has been restarted. Users don't see the errors, and they have no impact on JasperReports Server operations.

Because JasperReports Server user sessions are not persistent, you can configure your application server to disable persistence and avoid the error. For example, in Apache Tomcat, edit the file <tomcat>/conf/context.xml and locate the following lines.

Remove the comment markers from lines 2 and 4 above, then restart Apache-Tomcat activate the change. For other application servers, refer to the product documentation.