How To Solve Issues Related to Log – Unknown error

How To Solve Issues Related to Log – Unknown error

Updated: Feb-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “Unknown error” it’s important to understand a few problems related to Elasticsearch concepts bootstrap. See bellow important tips and explanations on these concepts

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
            }
        }




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 Kibana Discover Unknown Error  

Searcherror Unknown Error  

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