本文整理匯總了Golang中github.com/cockroachdb/cockroach/roachpb.Error類的典型用法代碼示例。如果您正苦於以下問題:Golang Error類的具體用法?Golang Error怎麽用?Golang Error使用的例子?那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
在下文中一共展示了Error類的15個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: executeCmd
// executeCmd interprets the given message as a *roachpb.BatchRequest and sends it
// via the local sender.
func (n *Node) executeCmd(argsI proto.Message) (proto.Message, error) {
ba := argsI.(*roachpb.BatchRequest)
var br *roachpb.BatchResponse
f := func() {
// TODO(tschottdorf) get a hold of the client's ID, add it to the
// context before dispatching, and create an ID for tracing the request.
sp := n.ctx.Tracer.StartSpan("node")
defer sp.Finish()
ctx, _ := opentracing.ContextWithSpan((*Node)(n).context(), sp)
tStart := time.Now()
var pErr *roachpb.Error
br, pErr = n.stores.Send(ctx, *ba)
if pErr != nil {
br = &roachpb.BatchResponse{}
sp.LogEvent(fmt.Sprintf("error: %T", pErr.GetDetail()))
}
if br.Error != nil {
panic(roachpb.ErrorUnexpectedlySet(n.stores, br))
}
n.feed.CallComplete(*ba, time.Now().Sub(tStart), pErr)
br.Error = pErr
}
if !n.stopper.RunTask(f) {
return nil, util.Errorf("node %d stopped", n.Descriptor.NodeID)
}
return br, nil
}
示例2: convertBatchError
func convertBatchError(tableDesc *TableDescriptor, b client.Batch, origPErr *roachpb.Error) *roachpb.Error {
if origPErr.Index == nil {
return origPErr
}
index := origPErr.Index.Index
if index >= int32(len(b.Results)) {
panic(fmt.Sprintf("index %d outside of results: %+v", index, b.Results))
}
result := b.Results[index]
if _, ok := origPErr.GoError().(*roachpb.ConditionFailedError); ok {
for _, row := range result.Rows {
indexID, key, pErr := decodeIndexKeyPrefix(tableDesc, row.Key)
if pErr != nil {
return pErr
}
index, pErr := tableDesc.FindIndexByID(indexID)
if pErr != nil {
return pErr
}
valTypes, pErr := makeKeyVals(tableDesc, index.ColumnIDs)
if pErr != nil {
return pErr
}
vals := make([]parser.Datum, len(valTypes))
if _, pErr := decodeKeyVals(valTypes, vals, key); pErr != nil {
return pErr
}
return roachpb.NewError(errUniquenessConstraintViolation{index: index, vals: vals})
}
}
return origPErr
}
示例3: makeResultFromError
// If we hit an error and there is a pending transaction, rollback
// the transaction before returning. The client does not have to
// deal with cleaning up transaction state.
func makeResultFromError(planMaker *planner, pErr *roachpb.Error) Result {
if planMaker.txn != nil {
if _, ok := pErr.GoError().(*roachpb.SqlTransactionAbortedError); !ok {
planMaker.txn.Cleanup(pErr)
}
}
return Result{Err: pErr.GoError()}
}
示例4: TestTxnCoordSenderEndTxn
// TestTxnCoordSenderEndTxn verifies that ending a transaction
// sends resolve write intent requests and removes the transaction
// from the txns map.
func TestTxnCoordSenderEndTxn(t *testing.T) {
defer leaktest.AfterTest(t)
s := createTestDB(t)
defer s.Stop()
// 4 cases: no deadline, past deadline, equal deadline, future deadline.
for i := 0; i < 4; i++ {
key := roachpb.Key("key: " + strconv.Itoa(i))
txn := client.NewTxn(*s.DB)
// Initialize the transaction
if pErr := txn.Put(key, []byte("value")); pErr != nil {
t.Fatal(pErr)
}
{
var pErr *roachpb.Error
switch i {
case 0:
// No deadline.
pErr = txn.Commit()
case 1:
// Past deadline.
pErr = txn.CommitBy(txn.Proto.Timestamp.Prev())
case 2:
// Equal deadline.
pErr = txn.CommitBy(txn.Proto.Timestamp)
case 3:
// Future deadline.
pErr = txn.CommitBy(txn.Proto.Timestamp.Next())
}
switch i {
case 0:
// No deadline.
if pErr != nil {
t.Error(pErr)
}
case 1:
// Past deadline.
if _, ok := pErr.GoError().(*roachpb.TransactionAbortedError); !ok {
t.Errorf("expected TransactionAbortedError but got %T: %s", pErr, pErr)
}
case 2:
// Equal deadline.
if pErr != nil {
t.Error(pErr)
}
case 3:
// Future deadline.
if pErr != nil {
t.Error(pErr)
}
}
}
verifyCleanup(key, s.Sender, s.Eng, t)
}
}
示例5: sendPError
func (c *v3Conn) sendPError(pErr *roachpb.Error) error {
var errCode string
if sqlErr, ok := pErr.GetDetail().(*roachpb.ErrorWithPGCode); ok {
errCode = sqlErr.ErrorCode
} else {
errCode = sql.CodeInternalError
}
return c.sendError(errCode, pErr.String())
}
示例6: processWriteIntentError
// processWriteIntentError tries to push the conflicting
// transaction(s) responsible for the given WriteIntentError, and to
// resolve those intents if possible. Returns a new error to be used
// in place of the original.
//
// The returned error may be a copy of the original WriteIntentError,
// with or without the Resolved flag set, which governs the client's
// retry behavior (if the transaction is pushed, the Resolved flag is
// set to tell the client to retry immediately; otherwise it is false
// to cause the client to back off).
func (ir *intentResolver) processWriteIntentError(ctx context.Context,
wiPErr *roachpb.Error, args roachpb.Request, h roachpb.Header,
pushType roachpb.PushTxnType) *roachpb.Error {
wiErr, ok := wiPErr.GetDetail().(*roachpb.WriteIntentError)
if !ok {
return roachpb.NewErrorf("not a WriteIntentError: %v", wiPErr)
}
if log.V(6) {
log.Infof(ctx, "resolving write intent %s", wiErr)
}
method := args.Method()
readOnly := roachpb.IsReadOnly(args) // TODO(tschottdorf): pass as param
resolveIntents, pushErr := ir.maybePushTransactions(ctx, wiErr.Intents, h, pushType, false)
if resErr := ir.resolveIntents(ctx, resolveIntents,
false /* !wait */, pushType == roachpb.PUSH_ABORT /* poison */); resErr != nil {
// When resolving without waiting, errors should not
// usually be returned here, although there are some cases
// when they may be (especially when a test cluster is in
// the process of shutting down).
log.Warningf(ctx, "asynchronous resolveIntents failed: %s", resErr)
}
if pushErr != nil {
if log.V(1) {
log.Infof(ctx, "on %s: %s", method, pushErr)
}
if _, isExpected := pushErr.GetDetail().(*roachpb.TransactionPushError); !isExpected {
// If an unexpected error occurred, make sure it bubbles up to the
// client. Examples are timeouts and logic errors.
return pushErr
}
// For write/write conflicts within a transaction, propagate the
// push failure, not the original write intent error. The push
// failure will instruct the client to restart the transaction
// with a backoff.
if h.Txn != nil && h.Txn.ID != nil && !readOnly {
return pushErr
}
// For read/write conflicts, and non-transactional write/write
// conflicts, return the write intent error which engages
// backoff/retry (with !Resolved). We don't need to restart the
// txn, only resend the read with a backoff.
return wiPErr
}
// We pushed all transactions, so tell the client everything's
// resolved and it can retry immediately.
wiErr.Resolved = true
return wiPErr // references wiErr
}
示例7: makeResultFromError
// If we hit an error and there is a pending transaction, rollback
// the transaction before returning. The client does not have to
// deal with cleaning up transaction state.
func makeResultFromError(planMaker *planner, pErr *roachpb.Error) driver.Response_Result {
if planMaker.txn != nil {
if _, ok := pErr.GoError().(*roachpb.SqlTransactionAbortedError); !ok {
planMaker.txn.Cleanup(pErr)
}
}
errString := pErr.GoError().Error()
return driver.Response_Result{Error: &errString}
}
示例8: Exec
// Exec executes fn in the context of a distributed transaction.
// Execution is controlled by opt (see comments in TxnExecOptions).
//
// opt is passed to fn, and it's valid for fn to modify opt as it sees
// fit during each execution attempt.
//
// It's valid for txn to be nil (meaning the txn has already aborted) if fn
// can handle that. This is useful for continuing transactions that have been
// aborted because of an error in a previous batch of statements in the hope
// that a ROLLBACK will reset the state. Neither opt.AutoRetry not opt.AutoCommit
// can be set in this case.
//
// If an error is returned, the txn has been aborted.
func (txn *Txn) Exec(
opt TxnExecOptions,
fn func(txn *Txn, opt *TxnExecOptions) *roachpb.Error) *roachpb.Error {
// Run fn in a retry loop until we encounter a success or
// error condition this loop isn't capable of handling.
var pErr *roachpb.Error
var retryOptions retry.Options
if txn == nil && (opt.AutoRetry || opt.AutoCommit) {
panic("asked to retry or commit a txn that is already aborted")
}
if opt.AutoRetry {
retryOptions = txn.db.txnRetryOptions
}
RetryLoop:
for r := retry.Start(retryOptions); r.Next(); {
pErr = fn(txn, &opt)
if (pErr == nil) && opt.AutoCommit && (txn.Proto.Status == roachpb.PENDING) {
// fn succeeded, but didn't commit.
pErr = txn.commit(nil)
}
if pErr == nil {
break
}
// Make sure the txn record that pErr carries is for this txn.
// We check only when txn.Proto.ID has been initialized after an initial successful send.
if pErr.GetTxn() != nil && txn.Proto.ID != nil {
if errTxn := pErr.GetTxn(); !errTxn.Equal(&txn.Proto) {
return roachpb.NewErrorf("mismatching transaction record in the error:\n%s\nv.s.\n%s",
errTxn, txn.Proto)
}
}
if !opt.AutoRetry {
break RetryLoop
}
switch pErr.TransactionRestart {
case roachpb.TransactionRestart_IMMEDIATE:
r.Reset()
case roachpb.TransactionRestart_BACKOFF:
default:
break RetryLoop
}
if log.V(2) {
log.Infof("automatically retrying transaction: %s because of error: %s",
txn.DebugName(), pErr)
}
}
if txn != nil {
// TODO(andrei): don't do Cleanup() on retriable errors here.
// Let the sql executor do it.
txn.Cleanup(pErr)
}
return pErr
}
示例9: encodeDTuple
func encodeDTuple(b []byte, d parser.DTuple) ([]byte, error) {
for _, val := range d {
var pErr *roachpb.Error
b, pErr = encodeDatum(b, val)
if pErr != nil {
return nil, pErr.GoError()
}
}
return b, nil
}
示例10: executeCmd
// executeCmd interprets the given message as a *roachpb.BatchRequest and sends it
// via the local sender.
func (n *Node) executeCmd(argsI proto.Message) (proto.Message, error) {
ba := argsI.(*roachpb.BatchRequest)
var br *roachpb.BatchResponse
opName := "node " + strconv.Itoa(int(n.Descriptor.NodeID)) // could save allocs here
fail := func(err error) {
br = &roachpb.BatchResponse{}
br.Error = roachpb.NewError(err)
}
f := func() {
sp, err := tracing.JoinOrNew(n.ctx.Tracer, ba.Trace, opName)
if err != nil {
fail(err)
return
}
// If this is a snowball span, it gets special treatment: It skips the
// regular tracing machinery, and we instead send the collected spans
// back with the response. This is more expensive, but then again,
// those are individual requests traced by users, so they can be.
if sp.BaggageItem(tracing.Snowball) != "" {
if sp, err = tracing.JoinOrNewSnowball(opName, ba.Trace, func(rawSpan basictracer.RawSpan) {
encSp, err := tracing.EncodeRawSpan(&rawSpan, nil)
if err != nil {
log.Warning(err)
}
br.CollectedSpans = append(br.CollectedSpans, encSp)
}); err != nil {
fail(err)
return
}
}
defer sp.Finish()
ctx := opentracing.ContextWithSpan((*Node)(n).context(), sp)
tStart := time.Now()
var pErr *roachpb.Error
br, pErr = n.stores.Send(ctx, *ba)
if pErr != nil {
br = &roachpb.BatchResponse{}
sp.LogEvent(fmt.Sprintf("error: %T", pErr.GetDetail()))
}
if br.Error != nil {
panic(roachpb.ErrorUnexpectedlySet(n.stores, br))
}
n.metrics.callComplete(time.Now().Sub(tStart), pErr)
br.Error = pErr
}
if !n.stopper.RunTask(f) {
return nil, util.Errorf("node %d stopped", n.Descriptor.NodeID)
}
return br, nil
}
示例11: shouldCacheError
// Responses with write-too-old, write-intent and not leader errors
// are retried on the server, and so are not recorded in the sequence
// cache in the hopes of retrying to a successful outcome.
func (sc *SequenceCache) shouldCacheError(pErr *roachpb.Error) bool {
switch pErr.GoError().(type) {
case *roachpb.WriteTooOldError, *roachpb.WriteIntentError, *roachpb.NotLeaderError, *roachpb.RangeKeyMismatchError:
return false
}
return true
}
示例12: exec
func (txn *Txn) exec(retryable func(txn *Txn) *roachpb.Error) *roachpb.Error {
// Run retryable in a retry loop until we encounter a success or
// error condition this loop isn't capable of handling.
var pErr *roachpb.Error
for r := retry.Start(txn.db.txnRetryOptions); r.Next(); {
pErr = retryable(txn)
if pErr == nil && txn.Proto.Status == roachpb.PENDING {
// retryable succeeded, but didn't commit.
pErr = txn.commit(nil)
}
if pErr != nil {
// Make sure the txn record that pErr carries is for this txn.
// We check only when txn.Proto.ID has been initialized after an initial successful send.
if pErr.GetTxn() != nil && txn.Proto.ID != nil {
if errTxn := pErr.GetTxn(); !errTxn.Equal(&txn.Proto) {
return roachpb.NewErrorf("mismatching transaction record in the error:\n%s\nv.s.\n%s",
errTxn, txn.Proto)
}
}
switch pErr.TransactionRestart {
case roachpb.TransactionRestart_IMMEDIATE:
if log.V(2) {
log.Warning(pErr)
}
r.Reset()
continue
case roachpb.TransactionRestart_BACKOFF:
if log.V(2) {
log.Warning(pErr)
}
continue
}
// By default, fall through and break.
}
break
}
txn.Cleanup(pErr)
return pErr
}
示例13: convertBatchError
func convertBatchError(tableDesc *TableDescriptor, b client.Batch, origPErr *roachpb.Error) *roachpb.Error {
if origPErr.Index == nil {
return origPErr
}
index := origPErr.Index.Index
if index >= int32(len(b.Results)) {
panic(fmt.Sprintf("index %d outside of results: %+v", index, b.Results))
}
result := b.Results[index]
if _, ok := origPErr.GetDetail().(*roachpb.ConditionFailedError); ok {
for _, row := range result.Rows {
indexID, key, err := decodeIndexKeyPrefix(tableDesc, row.Key)
if err != nil {
return roachpb.NewError(err)
}
index, err := tableDesc.FindIndexByID(indexID)
if err != nil {
return roachpb.NewError(err)
}
valTypes, err := makeKeyVals(tableDesc, index.ColumnIDs)
if err != nil {
return roachpb.NewError(err)
}
dirs := make([]encoding.Direction, 0, len(index.ColumnIDs))
for _, dir := range index.ColumnDirections {
convertedDir, err := dir.toEncodingDirection()
if err != nil {
return roachpb.NewError(err)
}
dirs = append(dirs, convertedDir)
}
vals := make([]parser.Datum, len(valTypes))
if _, err := decodeKeyVals(valTypes, vals, dirs, key); err != nil {
return roachpb.NewError(err)
}
return sqlErrToPErr(&errUniquenessConstraintViolation{index: index, vals: vals})
}
}
return origPErr
}
示例14: CallComplete
// CallComplete is called by a node whenever it completes a request. This will
// publish appropriate events to the feed:
// - For a successful request, a corresponding event for each request in the batch,
// - on error without index information, a failure of the Batch, and
// - on an indexed error a failure of the individual request.
func (nef NodeEventFeed) CallComplete(ba roachpb.BatchRequest, pErr *roachpb.Error) {
if pErr != nil && pErr.TransactionRestart == roachpb.TransactionRestart_ABORT {
method := roachpb.Batch
if iErr, ok := pErr.GoError().(roachpb.IndexedError); ok {
if index, ok := iErr.ErrorIndex(); ok {
method = ba.Requests[index].GetInner().Method()
}
}
nef.f.Publish(&CallErrorEvent{
NodeID: nef.id,
Method: method,
})
return
}
for _, union := range ba.Requests {
nef.f.Publish(&CallSuccessEvent{
NodeID: nef.id,
Method: union.GetInner().Method(),
})
}
}
示例15: handlePerReplicaError
// handlePerReplicaError returns true if the given error is likely to
// be unique to the replica that reported it, and retrying on other
// replicas is likely to produce different results. This method should
// be called only once for each error as it may have side effects such
// as updating caches.
func (ds *DistSender) handlePerReplicaError(rangeID roachpb.RangeID, pErr *roachpb.Error) bool {
switch tErr := pErr.GetDetail().(type) {
case *roachpb.RangeNotFoundError:
return true
case *roachpb.NodeUnavailableError:
return true
case *roachpb.NotLeaseHolderError:
if tErr.LeaseHolder != nil {
// If the replica we contacted knows the new lease holder, update the cache.
ds.updateLeaseHolderCache(rangeID, *tErr.LeaseHolder)
// TODO(bdarnell): Move the new lease holder to the head of the queue
// for the next retry.
}
return true
}
return false
}