Log Failed to send second ping request – How To Solve Related Issues

Log Failed to send second ping request – How To Solve Related Issues

Opster Team

Feb-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 send second ping request” 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: discovery, discovery-multicast, ping, Plugin, request.

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 send second ping request” classname is MulticastZenPing.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             // try and send another ping request halfway through (just in case someone woke up during it...)
            // this can be a good trade-off to nailing the initial lookup or un-delivered messages
            threadPool.schedule(TimeValue.timeValueMillis(timeout.millis() / 2); ThreadPool.Names.GENERIC; new AbstractRunnable() {
                public void onFailure(Throwable t) {
                    logger.warn("[{}] failed to send second ping request"; t; id);
                    finalizePingCycle(id; listener);

                public void doRun() {


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 Exception At Startup Failed To Send  

Elasticsearch Failed To Send Ping E  


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