A generic operation failure occurred
This is a very generic error code that serves as a catch-all for failures that do not have a more specific error code. The actual cause is usually found in the accompanying error message text or the server logs.
- 1This is a generic error; the specific cause varies widely.
- 2It can be triggered by internal server errors or edge cases.
- 3Often, the more detailed error message provides the true context.
- 4Could be a precursor to a more specific, new error code in a future MongoDB version.
Triggering this specific code is difficult as it is a fallback. It might occur during complex operations where no more specific error applies.
// There is no reliable, simple way to trigger this specific error code. // It depends on internal server state and complex failure modes.
expected output
MongoServerError: Operation failed: <detailed message here>
Fix 1
Examine the Full Error Message
WHEN This error code is returned.
Why this works
The most important information is not the code itself, but the text message that comes with it. This message will contain the details needed to diagnose the problem.
Fix 2
Check the `mongod` Logs
WHEN The error message is not clear enough.
Why this works
The server logs on the `mongod` instance will almost always have a more detailed stack trace or explanation for why the operation failed. This is the most critical step for debugging.
Fix 3
Search for the Error Message Text
WHEN You have the detailed error message.
Why this works
Search online for the specific error text (not the code '96'). This will likely lead to bug reports, documentation, or community discussions about that specific failure mode.
✕ Retry the operation in a loop without investigation
Since this is a generic failure, retrying without understanding the cause could lead to repeated failures, data corruption, or exacerbate an underlying problem.
mongodb/mongo src/mongo/base/error_codes.yml
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