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After upgrading Appian to 17.2 or higher and applying a hotfix package, the following message shows up during the application server startup:
2018-02-03 14:54:52,352 ERROR [stderr] (MSC service thread 1-5) SLF4J: Class path contains multiple SLF4J bindings.2018-02-03 14:54:52,353 ERROR [stderr] (MSC service thread 1-5) SLF4J: Found binding in [vfs:/apps/appian/ear/suite.ear/lib/slf4j-simple-1.7.21.jar/org/slf4j/impl/StaticLoggerBinder.class]2018-02-03 14:54:52,353 ERROR [stderr] (MSC service thread 1-5) SLF4J: Found binding in [vfs:/apps/appian/ear/suite.ear/lib/slf4j-log4j12-1.7.0.jar/org/slf4j/impl/StaticLoggerBinder.class]2018-02-03 14:54:52,353 ERROR [stderr] (MSC service thread 1-5) SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.2018-02-03 14:54:52,364 ERROR [stderr] (MSC service thread 1-5) SLF4J: Actual binding is of type [org.slf4j.impl.SimpleLoggerFactory]
After the application server has started successfully, logging messages such as these appear constantly in the application server log:
2018-02-03 14:57:56,453 ERROR [stderr] (Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13) [Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13] INFO feature_context - begin com.appiancorp.core.expr.Parse eval [Thread 238]2018-02-03 14:57:56,454 ERROR [stderr] (Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13) [Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13] INFO feature_context - end com.appiancorp.core.expr.Parse eval:0ms [Thread 238]2018-02-03 14:57:56,459 ERROR [stderr] (Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13) [Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13] INFO feature_context - begin com.appiancorp.core.expr.Parse eval [Thread 238]2018-02-03 14:57:56,460 ERROR [stderr] (Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13) [Appian ReschedulingTimerTask - IaReplicatorTimerTask - 13] INFO feature_context - end com.appiancorp.core.expr.Parse eval:0ms [Thread 238]
2018-02-03 15:00:47,265 ERROR [stderr] (Appian Plugin Hot Deploy) [Appian Plugin Hot Deploy] INFO com.atlassian.plugin.loaders.ScanningPluginLoader - No plugins found to be installed2018-02-03 15:00:47,269 ERROR [stderr] (Appian Plugin Hot Deploy) [Appian Plugin Hot Deploy] INFO com.atlassian.plugin.loaders.ScanningPluginLoader - No plugins found to be installed
This issue has been addressed as AN-99391 in the following hotfixes/versions:
Apply the latest hotfix to your Appian installation or upgrade to the latest version of Appian.