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Briefly, this error occurs when OpenSearch fails to execute a callback function after a certain event or operation. This could be due to a variety of reasons such as incorrect configuration, network issues, or a bug in the code. To resolve this issue, you can try the following: 1) Check the configuration settings to ensure they are correct. 2) Investigate network connectivity issues. 3) Review the code to identify any potential bugs or errors. 4) Update or reinstall OpenSearch if necessary. Always ensure to backup your data before making any major changes.
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This guide will help you check for common problems that cause the log ” failed to notify callback ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: .
Log Context
Log “failed to notify callback” classname is AsyncIOProcessor.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
for (Tuple- > tuple : candidates) { Consumer
consumer = tuple.v2(); try { consumer.accept(exception); } catch (Exception ex) { logger.warn("failed to notify callback"; ex); } } } Consumer preserveContext(Consumer consumer) {
