refactor(bigquery/storage/managedwriter): simplify signatures (#11158)

Another unparam related PR, this one focused on reducing unused params
in the managedwriter and its adapt subpackage.

Followup to #11149

bigquery/storage/managedwriter/adapt/protoconversion.go

@@ -277,10 +277,7 @@ func storageSchemaToDescriptorInternal(inSchema *storagepb.TableSchema, scope st
 					deps = append(deps, foundDesc.ParentFile())
 				}
 				// Construct field descriptor for the message.
-				fdp, err := tableFieldSchemaToFieldDescriptorProto(f, fNumber, string(foundDesc.FullName()), useProto3)
-				if err != nil {
-					return nil, newConversionError(scope, fmt.Errorf("couldn't convert field to FieldDescriptorProto: %w", err))
-				}
+				fdp := tableFieldSchemaToFieldDescriptorProto(f, fNumber, string(foundDesc.FullName()), useProto3)
 				fields = append(fields, fdp)
 			} else {
 				// Wrap the current struct's fields in a TableSchema outer message, and then build the submessage.
@@ -298,10 +295,7 @@ func storageSchemaToDescriptorInternal(inSchema *storagepb.TableSchema, scope st
 				if err != nil {
 					return nil, newConversionError(currentScope, fmt.Errorf("failed to add descriptor to dependency cache: %w", err))
 				}
-				fdp, err := tableFieldSchemaToFieldDescriptorProto(f, fNumber, currentScope, useProto3)
-				if err != nil {
-					return nil, newConversionError(currentScope, fmt.Errorf("couldn't compute field schema : %w", err))
-				}
+				fdp := tableFieldSchemaToFieldDescriptorProto(f, fNumber, currentScope, useProto3)
 				fields = append(fields, fdp)
 			}
 		} else {
@@ -329,10 +323,7 @@ func storageSchemaToDescriptorInternal(inSchema *storagepb.TableSchema, scope st
 					}
 				}
 			}
-			fd, err := tableFieldSchemaToFieldDescriptorProto(f, fNumber, currentScope, useProto3)
-			if err != nil {
-				return nil, newConversionError(currentScope, err)
-			}
+			fd := tableFieldSchemaToFieldDescriptorProto(f, fNumber, currentScope, useProto3)
 			fields = append(fields, fd)
 		}
 	}
@@ -411,7 +402,7 @@ func messageDependsOnFile(msg protoreflect.MessageDescriptor, file protoreflect.
 // For proto2, we propagate the mode->label annotation as expected.
 //
 // Messages are always nullable, and repeated fields are as well.
-func tableFieldSchemaToFieldDescriptorProto(field *storagepb.TableFieldSchema, idx int32, scope string, useProto3 bool) (*descriptorpb.FieldDescriptorProto, error) {
+func tableFieldSchemaToFieldDescriptorProto(field *storagepb.TableFieldSchema, idx int32, scope string, useProto3 bool) *descriptorpb.FieldDescriptorProto {
 	name := field.GetName()
 	var fdp *descriptorpb.FieldDescriptorProto
 
@@ -474,7 +465,7 @@ func tableFieldSchemaToFieldDescriptorProto(field *storagepb.TableFieldSchema, i
 		}
 		proto.SetExtension(fdp.Options, storagepb.E_ColumnName, name)
 	}
-	return fdp, nil
+	return fdp
 }
 
 // nameRequiresAnnotation determines whether a field name requires unicode-annotation.

bigquery/storage/managedwriter/connection.go

@@ -537,7 +537,7 @@ func connRecvProcessor(ctx context.Context, co *connection, arc storagepb.BigQue
 				// TODO:  Determine if/how we should report this case, as we have no viable context for propagating.
 
 				// Because we can't tell locally if this write is done, we pass it back to the retrier for possible re-enqueue.
-				pw.writer.processRetry(pw, co, nil, doneErr)
+				pw.writer.processRetry(pw, nil, doneErr)
 			}
 		case nextWrite, ok := <-ch:
 			if !ok {
@@ -557,7 +557,7 @@ func connRecvProcessor(ctx context.Context, co *connection, arc storagepb.BigQue
 				}
 				recordStat(metricCtx, AppendResponseErrors, 1)
 
-				nextWrite.writer.processRetry(nextWrite, co, nil, err)
+				nextWrite.writer.processRetry(nextWrite, nil, err)
 				continue
 			}
 			// Record that we did in fact get a response from the backend.
@@ -573,7 +573,7 @@ func connRecvProcessor(ctx context.Context, co *connection, arc storagepb.BigQue
 				recordStat(metricCtx, AppendResponseErrors, 1)
 				respErr := grpcstatus.ErrorProto(status)
 
-				nextWrite.writer.processRetry(nextWrite, co, resp, respErr)
+				nextWrite.writer.processRetry(nextWrite, resp, respErr)
 
 				continue
 			}

bigquery/storage/managedwriter/managed_stream.go

@@ -194,7 +194,7 @@ func (ms *ManagedStream) Finalize(ctx context.Context, opts ...gax.CallOption) (
 // appendWithRetry handles the details of adding sending an append request on a stream.  Appends are sent on a long
 // lived bidirectional network stream, with it's own managed context (ms.ctx), and there's a per-request context
 // attached to the pendingWrite.
-func (ms *ManagedStream) appendWithRetry(pw *pendingWrite, opts ...gax.CallOption) error {
+func (ms *ManagedStream) appendWithRetry(pw *pendingWrite) error {
 	for {
 		ms.mu.Lock()
 		err := ms.err
@@ -355,7 +355,7 @@ func (ms *ManagedStream) AppendRows(ctx context.Context, data [][]byte, opts ...
 
 // processRetry is responsible for evaluating and re-enqueing an append.
 // If the append is not retried, it is marked complete.
-func (ms *ManagedStream) processRetry(pw *pendingWrite, srcConn *connection, appendResp *storagepb.AppendRowsResponse, initialErr error) {
+func (ms *ManagedStream) processRetry(pw *pendingWrite, appendResp *storagepb.AppendRowsResponse, initialErr error) {
 	err := initialErr
 	for {
 		pause, shouldRetry := ms.statelessRetryer().Retry(err, pw.attemptCount)

bigquery/storage/managedwriter/retry.go

@@ -33,21 +33,20 @@ var (
 
 // This retry predicate is used for higher level retries, enqueing appends onto to a bidi
 // channel and evaluating whether an append should be retried (re-enqueued).
-func retryPredicate(err error) (shouldRetry, aggressiveBackoff bool) {
+func retryPredicate(err error) bool {
 	if err == nil {
-		return
+		return false
 	}
 
 	s, ok := status.FromError(err)
 	// non-status based error conditions.
 	if !ok {
 		// EOF can happen in the case of connection close.
 		if errors.Is(err, io.EOF) {
-			shouldRetry = true
-			return
+			return true
 		}
 		// All other non-status errors are treated as non-retryable (including context errors).
-		return
+		return false
 	}
 	switch s.Code() {
 	case codes.Aborted,
@@ -56,17 +55,15 @@ func retryPredicate(err error) (shouldRetry, aggressiveBackoff bool) {
 		codes.FailedPrecondition,
 		codes.Internal,
 		codes.Unavailable:
-		shouldRetry = true
-		return
+		return true
 	case codes.ResourceExhausted:
 		if strings.HasPrefix(s.Message(), "Exceeds 'AppendRows throughput' quota") {
 			// Note: internal b/246031522 opened to give this a structured error
 			// and avoid string parsing.  Should be a QuotaFailure or similar.
-			shouldRetry = true
-			return
+			return true
 		}
 	}
-	return
+	return false
 }
 
 // unaryRetryer is for retrying a unary-style operation, like (re)-opening the bidi connection.
@@ -75,7 +72,7 @@ type unaryRetryer struct {
 }
 
 func (ur *unaryRetryer) Retry(err error) (time.Duration, bool) {
-	shouldRetry, _ := retryPredicate(err)
+	shouldRetry := retryPredicate(err)
 	return ur.bo.Pause(), shouldRetry
 }
 
@@ -86,10 +83,9 @@ type statelessRetryer struct {
 	mu sync.Mutex // guards r
 	r  *rand.Rand
 
-	minBackoff       time.Duration
-	jitter           time.Duration
-	aggressiveFactor int
-	maxAttempts      int
+	minBackoff  time.Duration
+	jitter      time.Duration
+	maxAttempts int
 }
 
 func newStatelessRetryer() *statelessRetryer {
@@ -101,27 +97,23 @@ func newStatelessRetryer() *statelessRetryer {
 	}
 }
 
-func (sr *statelessRetryer) pause(aggressiveBackoff bool) time.Duration {
+func (sr *statelessRetryer) pause() time.Duration {
 	jitter := sr.jitter.Nanoseconds()
 	if jitter > 0 {
 		sr.mu.Lock()
 		jitter = sr.r.Int63n(jitter)
 		sr.mu.Unlock()
 	}
 	pause := sr.minBackoff.Nanoseconds() + jitter
-	if aggressiveBackoff {
-		pause = pause * int64(sr.aggressiveFactor)
-	}
 	return time.Duration(pause)
 }
 
 func (sr *statelessRetryer) Retry(err error, attemptCount int) (time.Duration, bool) {
 	if attemptCount >= sr.maxAttempts {
 		return 0, false
 	}
-	shouldRetry, aggressive := retryPredicate(err)
-	if shouldRetry {
-		return sr.pause(aggressive), true
+	if retryPredicate(err) {
+		return sr.pause(), true
 	}
 	return 0, false
 }