Failed to lock all shards for index – interrupted – How to solve this OpenSearch error

Opster Team

Aug-23, Version: 1-2.9

Before you dig into reading this guide, have you tried asking OpsGPT what this log means? You’ll receive a customized analysis of your log.

Try OpsGPT now for step-by-step guidance and tailored insights into your OpenSearch operation.

Briefly, this error occurs when OpenSearch fails to lock all shards for a specific index due to an interruption. This could be due to a network issue, a node failure, or a resource constraint. To resolve this issue, you can try the following: 1) Check the health of your nodes and network, 2) Ensure there are sufficient resources available, 3) Retry the operation after some time, 4) If the problem persists, consider reindexing. Always ensure your system is properly monitored to prevent such issues.

For a complete solution to your to your search operation, try for free AutoOps for Elasticsearch & OpenSearch . With AutoOps and Opster’s proactive support, you don’t have to worry about your search operation – we take charge of it. Get improved performance & stability with less hardware.

This guide will help you check for common problems that cause the log ” [{}] failed to lock all shards for index – interrupted ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: shards, cluster, index, indices.

Log Context

Log “[{}] failed to lock all shards for index – interrupted” classname is
We extracted the following from OpenSearch source code for those seeking an in-depth context :

                            // lock is released so it's guaranteed to be deleted by the time we get the lock
                            indicesService.processPendingDeletes(index; indexSettings; new TimeValue(30; TimeUnit.MINUTES));
                        } catch (ShardLockObtainFailedException exc) {
                            logger.warn("[{}] failed to lock all shards for index - timed out after 30 seconds"; index);
                        } catch (InterruptedException e) {
                            logger.warn("[{}] failed to lock all shards for index - interrupted"; index);


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?

Get expert answers on Elasticsearch/OpenSearch