Log Delaying allocation for unassigned shards; next check in – How To Solve Related Issues



Log Delaying allocation for unassigned shards; next check in – How To Solve Related Issues

Opster Team

Feb-20, Version: 1.7-8.0

 

Before you read this guide, we recommend you run the Elasticsearch Error Check-Up which detects issues in ES that cause log errors. It’s a free tool that requires no installation and takes 2 minutes to complete.

This guide will help you check for common problems that cause the log ” Delaying allocation for unassigned shards; next check in ” 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: allocation, cluster and routing.

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. Among the dozens of checks included are: shards sizes, thread pools, management queue size, search errors, circuit breakers and many more (join over 700 users who use this free tool).

Log Context

Log “delaying allocation for [{}] unassigned shards; next check in [{}]” classname is RoutingService.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             } else if (minDelaySetting  0 : "next delay must be non 0 as minDelaySetting is [" + minDelaySetting + "]";
                logger.info("delaying allocation for [{}] unassigned shards; next check in [{}]";
                        UnassignedInfo.getNumberOfDelayedUnassigned(event.state()); nextDelay);
                registeredNextDelayFuture = threadPool.schedule(nextDelay; ThreadPool.Names.SAME; new AbstractRunnable() {
                    
Override
                    protected void doRun() throws Exception {
                        minDelaySettingAtLastSchedulingNanos = Long.MAX_VALUE;





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 :

2






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