Failed to execute ttl purge – How to solve this Elasticsearch error

Opster Team

Aug-23, Version: 2.3-2.3

Briefly, this error occurs when Elasticsearch is unable to execute the purge operation for expired documents, which are managed by the Time to Live (TTL) feature. This could be due to insufficient resources, incorrect configuration, or a bug. To resolve this issue, you can try increasing system resources, checking the TTL configuration for errors, or updating Elasticsearch to the latest version to fix potential bugs. If the error persists, consider disabling the TTL feature if it’s not crucial for your use case.

This guide will help you check for common problems that cause the log ” failed to execute ttl purge ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: indices.

Log Context

Log “failed to execute ttl purge” classname is
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     try {
                        List shardsToPurge = getShardsToPurge();
                    } catch (Throwable e) {
                        if (running.get()) {
                            logger.warn("failed to execute ttl purge"; e);
                    if (running.get()) {


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