Log Un-assigning persistent tasks : – How To Solve Related Issues



Log Un-assigning persistent tasks : – 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 “Un-assigning persistent tasks :” 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: persistent, plugin, upgrade.


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”Un-assigning persistent tasks :” classname is TransportSetUpgradeModeAction.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             // We want to always have the same ordering of which tasks we un-allocate first.
            // However; the order in which the distributed tasks handle the un-allocation event is not guaranteed.
            .sorted(Comparator.comparing(PersistentTask::getTaskName))
            .collect(Collectors.toList());

        logger.info("Un-assigning persistent tasks : " +
            datafeedAndJobTasks.stream().map(PersistentTask::getId).collect(Collectors.joining("; "; "[ "; " ]")));

        TypedChainTaskExecutor> chainTaskExecutor =
            new TypedChainTaskExecutor(client.threadPool().executor(executor());
                r -> true;




 

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 ElasticSearch: Unassigned Shards, how to fix? -views 203.11 K ,score 152

How to stop -views   91.96 K,score 75

 

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