Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up which analyzes 2 JSON files to detect many configuration errors.
To easily locate the root cause and resolve this issue try AutoOps for Elasticsearch & OpenSearch. It diagnoses problems by analyzing hundreds of metrics collected by a lightweight agent and offers guidance for resolving them.
Take a self-guided product tour to see for yourself (no registration required).This guide will help you check for common problems that cause the log ” thread allocated memory is not supported on this JDK ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: monitor, memory, thread.
Log Context
Log “thread allocated memory is not supported on this JDK”classname is HotThreads.java We extracted the following from Elasticsearch source code for those seeking an in-depth context :
if (threadBean.isThreadCpuTimeSupported() == false) {
throw new ElasticsearchException("thread CPU time is not supported on this JDK");
}
if (type == ReportType.MEM && sunThreadInfo.isThreadAllocatedMemorySupported() == false) {
throw new ElasticsearchException("thread allocated memory is not supported on this JDK");
}
// Enabling thread contention monitoring is required for capturing JVM thread wait/blocked times. If we weren't
// able to enable this functionality during bootstrap; we should not produce HotThreads reports.
if (isThreadWaitBlockTimeMonitoringEnabled(threadBean) == false) {
Find & fix Elasticsearch problems
