Briefly, this error occurs when Elasticsearch tries to deserialize more memory than is available, resulting in a negative value. This could be due to a bug in the software or an issue with the JVM settings. To resolve this issue, you can try updating Elasticsearch to the latest version to fix any potential bugs. Alternatively, you can adjust the JVM settings to allocate more memory to Elasticsearch. Be careful not to allocate too much memory, as this could cause other issues with your system’s performance.
This guide will help you check for common problems that cause the log ” negative total memory [{}] deserialized in memory stats ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: monitor, memory.
Log Context
Log “negative total memory [{}] deserialized in memory stats” classname is OsStats.java.
We extracted the following from Elasticsearch source code for those seeking an in-depth context :
public Mem(StreamInput in) throws IOException {
long total = in.readLong();
assert total >= 0 : "expected total memory to be positive; got: " + total;
// Extra layer of protection for when assertions are disabled
if (total
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