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Briefly, this error occurs when there’s an attempt to register a method that already exists or is not supported. This could be due to a programming error or a conflict in the code. To resolve this issue, you can check the method being registered to ensure it’s not already in use or unsupported. If it’s a custom method, ensure it’s correctly defined and implemented. Also, ensure that the method is compatible with the version of OpenSearch you’re using. If the error persists, consider seeking help from the OpenSearch community or support.
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This guide will help you check for common problems that cause the log ” Registering: ” + method + ” ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: rest.
Log Context
Log “Registering: ” + method + ” ” classname is RestSendToExtensionAction.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
name = Optional.of(parts[2].trim());
}
} catch (IndexOutOfBoundsException | IllegalArgumentException e) {
throw new IllegalArgumentException(restAction + " does not begin with a valid REST method");
}
logger.info("Registering: " + method + " " + path);
if (name.isPresent()) {
NamedRoute nr = new NamedRoute(method; path; name.get());
restActionsAsRoutes.add(nr);
dynamicActionRegistry.registerDynamicRoute(nr; this);
} else {
