How To Solve Issues Related to Log – Unable to lock JVM Memory: error=

How To Solve Issues Related to Log – Unable to lock JVM Memory: error=

Updated: Feb-20

Elasticsearch Version: 1.7-8.0

Background

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To troubleshoot log “Unable to lock JVM Memory: 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”Unable to lock JVM Memory: error=” classname is JNANatives.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

             // this will have already been logged by CLibrary; no need to repeat it
            return;
        }

        // mlockall failed for some reason
        logger.warn("Unable to lock JVM Memory: error=" + errno + ";reason=" + errMsg);
        logger.warn("This can result in part of the JVM being swapped out.");
        if (errno == JNACLibrary.ENOMEM) {
            if (rlimitSuccess) {
                logger.warn("Increase RLIMIT_MEMLOCK; soft limit: " + rlimitToString(softLimit) + "; hard limit: " + rlimitToString(hardLimit));
                if (Constants.LINUX) {




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 Unable to lock JVM Memory: error=12, reason=Cannot allocate memory – Elasticsearch 6.2.4

5.38 K 5

Es 5 0 0 Alpha5 Unable To Lock Jvm  

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