Merge pull request vitessio#7002 from tinyspeck/better-error-timeout

Adds better error when there are timeouts in resource pools

go/pools/resource_pool.go

@@ -29,17 +29,20 @@ import (
 	"vitess.io/vitess/go/sync2"
 	"vitess.io/vitess/go/timer"
 	"vitess.io/vitess/go/trace"
+	"vitess.io/vitess/go/vt/vterrors"
+
+	vtrpcpb "vitess.io/vitess/go/vt/proto/vtrpc"
 )
 
 var (
 	// ErrClosed is returned if ResourcePool is used when it's closed.
 	ErrClosed = errors.New("resource pool is closed")
 
 	// ErrTimeout is returned if a resource get times out.
-	ErrTimeout = errors.New("resource pool timed out")
+	ErrTimeout = vterrors.New(vtrpcpb.Code_DEADLINE_EXCEEDED, "resource pool timed out")
 
 	// ErrCtxTimeout is returned if a ctx is already expired by the time the resource pool is used
-	ErrCtxTimeout = errors.New("resource pool context already expired")
+	ErrCtxTimeout = vterrors.New(vtrpcpb.Code_DEADLINE_EXCEEDED, "resource pool context already expired")
 
 	prefillTimeout = 30 * time.Second
 )