Unknown error – How to solve related issues

Unknown error – How to solve related issues

Opster Team

Feb-20, Version: 1.7-8.0

Before you begin reading this guide, we recommend you run Elasticsearch Error Check-Up which can resolve issues that cause many errors.

This guide will help you check for common problems that cause the log ” Unknown error ” 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: bootstrap.

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 (free tool that requires no installation).

Log Context

Log “unknown error” classname is JNANatives.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             try {
                boolean result = JNAKernel32Library.getInstance().addConsoleCtrlHandler(handler);
                if (result) {
                    logger.debug("console ctrl handler correctly set");
                } else {
                    logger.warn("unknown error " + Native.getLastError() + " when adding console ctrl handler:");
                }
            } catch (UnsatisfiedLinkError e) {
                // this will have already been logged by Kernel32Library; no need to repeat it
            }
        }




 

Run the Check-Up to get a customized report like this:

Analyze your cluster