NetWorker: REST API requests fail with HTTP 500 java.lang.UnsatisfiedLinkError

Résumé: NetWorker Representational State Transfer Application Programming Interface (REST API) operations fail with HTTP 500. The page reports java.lang.UnsatisfiedLinkError, stating that librestapi64.so is already loaded in another classloader. ...

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Symptômes

NetWorker REST API operations fail with HTTP 500 (Internal Server Error).

Accessing any REST API end point from a web browser (https://NW_SERVER_ADDRESS:9090/nwrestapi/v3/global) reports:
HTTP Status 500 Error librestapi64 already loaded in another classloader

There are no errors or information logged in the /nsr/logs/restapi/restapi.log.

Cause

The NetWorker server operating system (OS) is not officially supported by the NetWorker version used.

 

For example, this issue appeared after upgrading an existing NetWorker server from Red Hat 7.9 to Red Hat 9.5 while using NetWorker 19.9. NetWorker 19.9 does not officially support Red Hat 9.5. This issue can also be observed without any upgrades, if a new NetWorker server version is installed on an unsupported operating system.

Résolution

Ensure that the NetWorker version and server operating system meet support requirements.

 

The compatibility matrix can be found under: https://elabnavigator.dell.com/eln/modernHomeAutomatedTiles?page=NetWorker

Download the NetWorker version-specific guide from the NETWORKER & ALL COMPONENTS, REPORTS, MODULES section. 

 

Ensure that the Java Runtime Environment (JRE), or NetWorker Runtime Environment (NRE) are up-to-date, and configured correctly: NetWorker Runtime Environment (NRE): Introduction and Installation

Produits concernés

NetWorker

Produits

NetWorker Family
Propriétés de l’article
Numéro d’article: 000320862
Type d’article: Solution
Dernière modification: 13 mai 2025
Version:  2
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