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Briefly, this error occurs when OpenSearch encounters an issue during the validation process of a node. This could be due to a variety of reasons such as incorrect configuration settings, network connectivity issues, or incompatible software versions. To resolve this issue, you should first check the node’s configuration settings for any errors. If the settings are correct, verify the network connectivity between the nodes. Lastly, ensure that all nodes are running compatible versions of OpenSearch.
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This guide will help you check for common problems that cause the log ” node validation exception\n{} ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: bootstrap, node.
Log Context
Log “node validation exception\n{}” classname is Bootstrap.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
} catch (UnsupportedEncodingException uee) {
assert false;
e.addSuppressed(uee);
}
} else if (e instanceof NodeValidationException) {
logger.error("node validation exception\n{}"; e.getMessage());
} else {
// full exception
logger.error("Exception"; e);
}
// re-enable it if appropriate; so they can see any logging during the shutdown process
