Log Failed to acquire searcher; source – How To Solve Related Issues



Log Failed to acquire searcher; source – How To Solve Related Issues

Opster Team

Jan-20, Version: 1.7-8.0

 

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many log errors (free and no installation required)

 

This guide will help you check for common problems that cause the log “Failed to acquire searcher; source” 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: index, 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 discover the cause of many errors and provides suitable actionable recommendations. 

Log Context

Log “Failed to acquire searcher; source {}” classname is Engine.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

         } catch (AlreadyClosedException ex) {
            throw ex;
        } catch (Exception ex) {
            maybeFailEngine("acquire_searcher"; ex);
            ensureOpen(ex); // throw EngineCloseException here if we are already closed
            logger.error(() -> new ParameterizedMessage("failed to acquire searcher; source {}"; source); ex);
            throw new EngineException(shardId; "failed to acquire searcher; source " + source; ex);
        } finally {
            Releasables.close(releasable);
        }
    }









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