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Briefly, this error occurs when OpenSearch fails to schedule a cancellation task for an original task. This could be due to a variety of reasons such as resource constraints, internal bugs, or issues with the task management system. To resolve this issue, you could try restarting the OpenSearch service, checking for any resource constraints and freeing up resources if necessary, or updating OpenSearch to the latest version to fix any potential bugs. Additionally, you could also check the task management system for any issues and fix them accordingly.
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This guide will help you check for common problems that cause the log ” Failed to schedule the cancellation task for original task: {}; will continue without it ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: task.
Log Context
Log “Failed to schedule the cancellation task for original task: {}; will continue without it” classname is TimeoutTaskCancellationUtility.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
});
wrappedListener.cancellable = client.threadPool().schedule(wrappedListener; timeoutInterval; ThreadPool.Names.GENERIC);
listenerToReturn = wrappedListener;
} catch (Exception ex) {
// if there is any exception in scheduling the cancellation task then continue without it
logger.warn("Failed to schedule the cancellation task for original task: {}; will continue without it"; taskToCancel.getId());
}
return listenerToReturn;
}
/**
