Releasing snapshot caused exception – How to solve related issues

Releasing snapshot caused exception – How to solve related issues

Opster Team

Jan-20, Version: 1.7-8.0

 

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Releasing snapshot caused exception ” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: handler, indices, recovery, snapshot and source.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to pinpoint the cause of many errors and provides suitable actionable recommendations how to resolve them (free tool that requires no installation).

Log Context

Log “Releasing snapshot caused exception” classname is RecoverySourceHandler.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     throw new RecoveryEngineException(shard.shardId(); 1; "phase1 failed"; e);
                } finally {
                    try {
                        IOUtils.close(phase1Snapshot);
                    } catch (final IOException ex) {
                        logger.warn("releasing snapshot caused exception"; ex);
                    }
                }
            }
            assert startingSeqNo >= 0 : "startingSeqNo must be non negative. got: " + startingSeqNo;





 

Run the Check-Up to get customized recommendations like this:

checklist Run Check-Up

error

Heavy merges detected in specific nodes

error-img

Description

A large number of small shards can slow down searches and cause cluster instability. Some indices have shards that are too small…

error-img

Recommendations Based on your specific ES deployment you should…

Based on your specific ES deployment you should…

1

X-PUT curl -H [a customized code snippet to resolve the issue]

 

 

 

Optimize Elasticsearch Performance

Run The Tool