txpool/legacypool: deprecate already known error #2190
Merged
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Description
This PR deprecates the usage of
ErrAlreadyKnown
in thelegacypool
package. Existing dependencies on this error type should usetxpool.ErrAlreadyKnown
instead.Rationale
Originally, upon triggering
legacypool.ErrAlreadyKnown
, this error will be propagated back to the initial caller functions.For example, in this code, the expected behavior is that the metrics will be bumped if
txpool.ErrAlreadyKnown
function is used. However,legacypool.ErrAlreadyKnown
andtxpool.ErrAlreadyKnown
are 2 different error types with the same error messages. Hence, the case of checking if the error is oftxpool.ErrAlreadyKnown
will not be triggered so it will go to the default case instead.