Cannot parse the specified url – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch is unable to understand the URL provided. This could be due to a malformed URL, incorrect protocol, or a typo in the URL. To resolve this issue, you should first verify the URL for any mistakes. Ensure that the URL starts with the correct protocol (http/https). If you’re using a domain name, check if it’s correctly resolved. If you’re using an IP address, ensure it’s reachable. Lastly, check if the port number is correct and the Elasticsearch service is running on that port.

This guide will help you check for common problems that cause the log ” cannot parse the specified url [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: repositories.

Log Context

Log “cannot parse the specified url [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                    if (URIPattern.match(urlWhiteList; urlToCheck.toURI())) {
                        // URL matches white list - no additional processing is needed
                        return urlToCheck;
                } catch (URISyntaxException ex) {
                    logger.warn("cannot parse the specified url [{}]"; urlToCheck);
                    throw new RepositoryException(getMetadata().name(); "cannot parse the specified url [" + urlToCheck + "]");
                // We didn't match white list - try to resolve against path.repo
                URL normalizedUrl = environment.resolveRepoURL(urlToCheck);
                if (normalizedUrl == null) {


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