Failed to temporary create in order to apply alias action – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

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Briefly, this error occurs when Elasticsearch tries to create a temporary index to apply an alias action, but fails due to issues like insufficient disk space, incorrect permissions, or a conflict with an existing index. To resolve this, ensure there’s enough disk space and correct permissions are set. Also, check for any existing index that might be causing a conflict. If there’s one, consider deleting or renaming it. Additionally, verify your alias action and ensure it’s correctly configured.

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This guide will help you check for common problems that cause the log ” [{}] failed to temporary create in order to apply alias action ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: alias, aliases, cluster, index and metadata.

Log Context

Log “[{}] failed to temporary create in order to apply alias action” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                                             for (ObjectCursor cursor : indexMetaData.getMappings().values()) {
                                                MappingMetaData mappingMetaData = cursor.value;
                                                indexService.mapperService().merge(mappingMetaData.type(); mappingMetaData.source(); MapperService.MergeReason.MAPPING_RECOVERY; false);
                                        } catch (Exception e) {
                                            logger.warn("[{}] failed to temporary create in order to apply alias action"; e; indexMetaData.getIndex());
                                    indices.put(indexMetaData.getIndex(); indexService);


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