Failed to add alias filter – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 1.7-1.7

Briefly, this error occurs when Elasticsearch is unable to add a filter to an alias due to issues like incorrect filter syntax, non-existent fields in the filter, or insufficient permissions. To resolve this, ensure the filter syntax is correct and the fields used in the filter exist in the index. Also, check the user permissions to ensure they have the rights to add a filter to an alias. If the problem persists, consider checking the Elasticsearch logs for more detailed error information.

This guide will help you check for common problems that cause the log ” [{}] failed to add alias [{}]; filter [{}] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: alias, cluster, filter and indices.

Log Context

Log “[{}] failed to add alias [{}]; filter [{}]” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                        newAliases.put(alias; indexAliasesService.create(alias; filter));
            } catch (Throwable e) {
                logger.warn("[{}] failed to add alias [{}]; filter [{}]"; e; index; alias; filter);


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?