How To Solve Issues Related to Log – Failed to run scheduled task on thread pool

How To Solve Issues Related to Log – Failed to run scheduled task on thread pool

Updated: Jan-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “Failed to run scheduled task on thread pool” it’s important to understand a few problems related to Elasticsearch concepts pool, task, thread, threadpool. See bellow important tips and explanations on these concepts

Log Context

Log”Failed to run scheduled task [{}] on thread pool [{}]” classname is ThreadPool.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

                     if (logger.isDebugEnabled()) {
                        logger.debug(() -> new ParameterizedMessage("scheduled task [{}] was rejected on thread pool [{}]";
                                command; executor); e);
                    }
                };
                (e) -> logger.warn(() -> new ParameterizedMessage("failed to run scheduled task [{}] on thread pool [{}]";
                        command; executor); e));
    }

    public Runnable preserveContext(Runnable command) {
        return getThreadContext().preserveContext(command);




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 Watcher Exception Without Using Wat  

Resourcewatcherservice Exception Ev  

Watcher Throwing Thread Pool Capaci

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