KB-1125 Heap space issues with search server

pauline.delacruz — Wed, 19 Mar 2025 18:39:34 GMT

Current Revision posted to Appian Knowledge Base by pauline.delacruz on 3/19/2025 6:39:34 PM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

The error is seen when one of the search server functionalities requires more JVM heap than the configured maximum limit. By default, the search server will start with the configurations for initial and maximum memory usage (JVM heap) each set to 1024MB (1GB).

Action

Starting with Appian 17.2, rule performance metrics are aggregated every minute to help save on disk space and heap memory. Please upgrade to this version of Appian to help mitigate the heap issues in your environment.

Workaround

If upgrading to Appian 17.2 is not feasible, perform the following to manually increase the heap on the search server machine (Note: The machine must be equipped to handle additional memory on the search server machine. Do not attempt these steps on a box that consistently runs high on memory):

Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by following the action in KB-1082.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: March 2025

Tags: administration, heap, search server, infrastructure

KB-1125 Heap space issues with search server

pauline.delacruz — Mon, 10 Mar 2025 21:39:52 GMT

Revision 6 posted to Appian Knowledge Base by pauline.delacruz on 3/10/2025 9:39:52 PM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

Action

Workaround

Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by following the action in KB-1082.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: January 2025

Tags: administration, heap, search server, infrastructure

KB-1125 Heap space issues with search server

Nicholas Van Dyke — Wed, 10 Feb 2021 21:44:10 GMT

Revision 5 posted to Appian Knowledge Base by Nicholas Van Dyke on 2/10/2021 9:44:10 PM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

Action

Workaround

Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by following the action in KB-1082.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: January 2021

Tags: administration, heap, search server, infrastructure

KB-1125 Heap space issues with search server

Parmida Borhani — Thu, 09 Aug 2018 02:11:14 GMT

Revision 4 posted to Appian Knowledge Base by Parmida Borhani on 8/9/2018 2:11:14 AM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

Action

Workaround

Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by following the action in KB-1082.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: August 2017

Tags: administration, heap, search server, infrastructure

KB-1125 Heap space issues with search server

Parmida Borhani — Thu, 09 Aug 2018 02:10:50 GMT

Revision 3 posted to Appian Knowledge Base by Parmida Borhani on 8/9/2018 2:10:50 AM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

Action

Workaround

Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by following the action in KB-1082.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: August 2017

Tags: heap, search server, infrastructure

KB-1125 Heap space issues with search server

Nick Vigilante — Wed, 30 Aug 2017 08:42:35 GMT

Revision 2 posted to Appian Knowledge Base by Nick Vigilante on 8/30/2017 8:42:35 AM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

Action

Workaround

Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by following the action in KB-1082.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: August 2017

Tags: heap, search server

KB-1125 Heap space issues with search server

Nick Vigilante — Fri, 24 Feb 2017 13:55:58 GMT

Revision 1 posted to Appian Knowledge Base by Nick Vigilante on 2/24/2017 1:55:58 PM

Symptoms

When utilizing functionality that requires the search server, the following error message is printed in the application server log:

Caused by: org.elasticsearch.action.search.SearchPhaseExecutionException: Failed to execute phase [query], all shards failed; shardFailures {[90nFgyfMQPmYsbhzr2aI7w][xray-rule-execution][0]: ElasticsearchException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: UncheckedExecutionException[org.elasticsearch.ElasticsearchException: java.lang.OutOfMemoryError: Java heap space]; nested: ElasticsearchException[java.lang.OutOfMemoryError: Java heap space]; nested: ExecutionError[java.lang.OutOfMemoryError: Java heap space]; nested: OutOfMemoryError[Java heap space]; }

Cause

Action

To correct this issue, perform the following:

Review Search Server Sizing to determine how much JVM heap is required.
Follow the steps mentioned in Starting and Stopping the Search Server to increase the search server heap limit.
Stop the application server.
Stop the search server.
Recreate the indices before restarting the search server by deleting <APPIAN_HOME>/admin/search-localdirectory.
Start the search server.
Start the application server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: February 2017

Tags: heap, search server