How To Solve Issues Related to Log – failed to obtain shard lock

How To Solve Issues Related to Log – failed to obtain shard lock

Updated: Jan-20

Elasticsearch Version: 1.7-8.0

Background

Before you begin reading this guide try our beta Elasticsearch Health Check-Up it analyses JSON’s to provide personalized recommendations that can improve your clusters performance.


To troubleshoot log “failed to obtain shard lock” it’s important to understand a few problems related to Elasticsearch concepts index, shard. See bellow important tips and explanations on these concepts

Log Context

Log”{}: failed to obtain shard lock” classname is Store.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         } catch (IndexNotFoundException ex) {
            // that's fine - happens all the time no need to log
        } catch (FileNotFoundException | NoSuchFileException ex) {
            logger.info("Failed to open / find files while reading metadata snapshot");
        } catch (ShardLockObtainFailedException ex) {
            logger.info(() -> new ParameterizedMessage("{}: failed to obtain shard lock"; shardId); ex);
        }
        return MetadataSnapshot.EMPTY;
    }

    /**




Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Github Issue Number 23199  

Java Io Ioexception Failed To Obtai  

About Opster

Opster detects root causes of Elasticsearch problems, provides automated recommendations and can perform various actions to prevent issues and optimize performance

Find Configuration Errors

Analyze Now