Submit Feedback
Legacy Knowledge Base
Published Jun. 30, 2025

Elasticsearch not working after upgrade

Written By

Debora Vita

How To articles are not official guidelines or officially supported documentation. They are community-contributed content and may not always reflect the latest updates to Liferay DXP. We welcome your feedback to improve How To articles!

While we make every effort to ensure this Knowledge Base is accurate, it may not always reflect the most recent updates or official guidelines.We appreciate your understanding and encourage you to reach out with any feedback or concerns.

Legacy Article

You are viewing an article from our legacy "FastTrack" publication program, made available for informational purposes. Articles in this program were published without a requirement for independent editing or verification and are provided"as is" without guarantee.

Before using any information from this article, independently verify its suitability for your situation and project.

Issue

  • After performing an upgrade, we've noticed some errors with Elasticsearch:
    2023-11-28 13:27:54.223 ERROR [[STANDBY] ExecuteThread: '3' for queue: 'weblogic.kernel.Default (self-tuning)'][ElasticsearchConnectionManager:73] Elasticsearch sidecar could not be started. Search will be unavailable. Manual installation of Elasticsearch and activation of remote mode is recommended.

    java.lang.RuntimeException: java.io.IOException: Connection reset by peer

    at com.liferay.portal.search.elasticsearch7.internal.sidecar.ElasticsearchInstaller.install(ElasticsearchInstaller.java:62)

    at com.liferay.portal.search.elasticsearch7.internal.sidecar.Sidecar._installElasticsearchIfNeeded(Sidecar.java:595)

    at com.liferay.portal.search.elasticsearch7.internal.sidecar.Sidecar.start(Sidecar.java:97)

Environment

  • DXP 7.3

Resolution

  • Check if you have configured the remote Elasticsearch already. The Liferay portal will not function very well (and may not even start) when there is absolutely no search engine connection. After starting the Liferay 7.3 bundle (with sidecar active) you can switch to remote Elasticsearch by navigating to system Settings > Search > Elasticsearch 7.
  • You can also configure (via .config file) a remote Elasticsearch connection for startup. Deploying a configuration file for ElasticsearchConnector that sets the mode to REMOTE like the attached file should accomplish this. You can place it directly into osgi/configs folder.

Additional Information

Did this article resolve your issue ?
Legacy Knowledge Base
Did this article resolve your issue ?