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Briefly, this error occurs when OpenSearch is unable to determine the current memory usage due to a known issue in the Java Development Kit (JDK), specifically JDK-8207200. This could potentially lead to memory-related issues in OpenSearch. To resolve this, you could upgrade your JDK to a version where this issue has been fixed. Alternatively, you could monitor your memory usage using external tools to ensure that OpenSearch is not consuming excessive memory. Lastly, you could adjust the JVM settings to limit the memory usage of OpenSearch.
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This guide will help you check for common problems that cause the log ” Cannot determine current memory usage due to JDK-8207200. ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: memory, breaker, indices.
Log Context
Log “Cannot determine current memory usage due to JDK-8207200.” classname is HierarchyCircuitBreakerService.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
} catch (IllegalArgumentException ex) {
// This exception can happen (rarely) due to a race condition in the JVM when determining usage of memory pools. We do not want
// to fail requests because of this and thus return zero memory usage in this case. While we could also return the most
// recently determined memory usage; we would overestimate memory usage immediately after a garbage collection event.
assert ex.getMessage().matches("committed = \d+ should be
