YQ-3439 added retries for CURLE_COULDNT_RESOLVE_HOST (ydb-platform#6732)

GrigoriyPA · GrigoriyPA · commit e4a6cebf267c · 2024-07-16T15:06:58.000Z
diff --git a/ydb/core/external_sources/object_storage.cpp b/ydb/core/external_sources/object_storage.cpp
@@ -304,7 +304,8 @@ struct TObjectStorageExternalSource : public IExternalSource {
         }
 
         auto httpGateway = NYql::IHTTPGateway::Make();
-        auto s3Lister = NYql::NS3Lister::MakeS3Lister(httpGateway, NYql::NS3Lister::TListingRequest{
+        auto httpRetryPolicy = NYql::GetHTTPDefaultRetryPolicy(NYql::THttpRetryPolicyOptions{.RetriedCurlCodes = NYql::FqRetriedCurlCodes()});
+        auto s3Lister = NYql::NS3Lister::MakeS3Lister(httpGateway, httpRetryPolicy, NYql::NS3Lister::TListingRequest{
             .Url = meta->DataSourceLocation,
             .AuthInfo = authInfo,
             .Pattern = meta->TableLocation,
diff --git a/ydb/core/kqp/host/kqp_host.cpp b/ydb/core/kqp/host/kqp_host.cpp
@@ -1518,6 +1518,7 @@ class TKqpHost : public IKqpHost {
         state->Configuration->AllowAtomicUploadCommit = queryType == EKikimrQueryType::Script;
         state->Configuration->Init(FederatedQuerySetup->S3GatewayConfig, TypesCtx);
         state->Gateway = FederatedQuerySetup->HttpGateway;
+        state->GatewayRetryPolicy = NYql::GetHTTPDefaultRetryPolicy(NYql::THttpRetryPolicyOptions{.RetriedCurlCodes = NYql::FqRetriedCurlCodes()});
         state->ExecutorPoolId = AppData()->UserPoolId;
 
         auto dataSource = NYql::CreateS3DataSource(state);
diff --git a/ydb/library/yql/providers/common/http_gateway/yql_http_default_retry_policy.cpp b/ydb/library/yql/providers/common/http_gateway/yql_http_default_retry_policy.cpp
@@ -29,7 +29,8 @@ std::unordered_set<CURLcode> FqRetriedCurlCodes() {
         CURLE_SEND_ERROR,
         CURLE_RECV_ERROR,
         CURLE_NO_CONNECTION_AVAILABLE,
-        CURLE_GOT_NOTHING
+        CURLE_GOT_NOTHING,
+        CURLE_COULDNT_RESOLVE_HOST
     };
 }
 
diff --git a/ydb/library/yql/providers/s3/actors/yql_s3_raw_read_actor.cpp b/ydb/library/yql/providers/s3/actors/yql_s3_raw_read_actor.cpp
@@ -111,6 +111,7 @@ class TS3ReadActor : public NActors::TActorBootstrapped<TS3ReadActor>, public ID
                 FileQueueBatchSizeLimit,
                 FileQueueBatchObjectCountLimit,
                 Gateway,
+                RetryPolicy,
                 Url,
                 AuthInfo,
                 Pattern,
diff --git a/ydb/library/yql/providers/s3/actors/yql_s3_read_actor.cpp b/ydb/library/yql/providers/s3/actors/yql_s3_read_actor.cpp
@@ -1315,6 +1315,7 @@ class TS3StreamReadActor : public TActorBootstrapped<TS3StreamReadActor>, public
                 FileQueueBatchSizeLimit,
                 FileQueueBatchObjectCountLimit,
                 Gateway,
+                RetryPolicy,
                 Url,
                 AuthInfo,
                 Pattern,
diff --git a/ydb/library/yql/providers/s3/actors/yql_s3_read_actor.h b/ydb/library/yql/providers/s3/actors/yql_s3_read_actor.h
@@ -25,6 +25,7 @@ NActors::IActor* CreateS3FileQueueActor(
         ui64 batchSizeLimit,
         ui64 batchObjectCountLimit,
         IHTTPGateway::TPtr gateway,
+        IHTTPGateway::TRetryPolicy::TPtr retryPolicy,
         TString url,
         TS3Credentials::TAuthInfo authInfo,
         TString pattern,
diff --git a/ydb/library/yql/providers/s3/actors/yql_s3_source_queue.cpp b/ydb/library/yql/providers/s3/actors/yql_s3_source_queue.cpp
@@ -171,6 +171,7 @@ class TS3FileQueueActor : public NActors::TActorBootstrapped<TS3FileQueueActor>
         ui64 batchSizeLimit,
         ui64 batchObjectCountLimit,
         IHTTPGateway::TPtr gateway,
+        IHTTPGateway::TRetryPolicy::TPtr retryPolicy,
         TString url,
         TS3Credentials::TAuthInfo authInfo,
         TString pattern,
@@ -186,6 +187,7 @@ class TS3FileQueueActor : public NActors::TActorBootstrapped<TS3FileQueueActor>
         , BatchSizeLimit(batchSizeLimit)
         , BatchObjectCountLimit(batchObjectCountLimit)
         , Gateway(std::move(gateway))
+        , RetryPolicy(std::move(retryPolicy))
         , Url(std::move(url))
         , AuthInfo(std::move(authInfo))
         , Pattern(std::move(pattern))
@@ -488,6 +490,7 @@ class TS3FileQueueActor : public NActors::TActorBootstrapped<TS3FileQueueActor>
             CurrentDirectoryPathIndex = object.GetPathIndex();
             MaybeLister = NS3Lister::MakeS3Lister(
                 Gateway,
+                RetryPolicy,
                 NS3Lister::TListingRequest{
                     Url,
                     AuthInfo,
@@ -611,6 +614,7 @@ class TS3FileQueueActor : public NActors::TActorBootstrapped<TS3FileQueueActor>
     THashSet<NActors::TActorId> UpdatedConsumers;
 
     const IHTTPGateway::TPtr Gateway;
+    const IHTTPGateway::TRetryPolicy::TPtr RetryPolicy;
     const TString Url;
     const TS3Credentials::TAuthInfo AuthInfo;
     const TString Pattern;
@@ -632,6 +636,7 @@ NActors::IActor* CreateS3FileQueueActor(
         ui64 batchSizeLimit,
         ui64 batchObjectCountLimit,
         IHTTPGateway::TPtr gateway,
+        IHTTPGateway::TRetryPolicy::TPtr retryPolicy,
         TString url,
         TS3Credentials::TAuthInfo authInfo,
         TString pattern,
@@ -648,6 +653,7 @@ NActors::IActor* CreateS3FileQueueActor(
         batchSizeLimit,
         batchObjectCountLimit,
         gateway,
+        retryPolicy,
         url,
         authInfo,
         pattern,
diff --git a/ydb/library/yql/providers/s3/actors/yql_s3_source_queue.h b/ydb/library/yql/providers/s3/actors/yql_s3_source_queue.h
@@ -22,6 +22,7 @@ NActors::IActor* CreateS3FileQueueActor(
         ui64 batchSizeLimit,
         ui64 batchObjectCountLimit,
         IHTTPGateway::TPtr gateway,
+        IHTTPGateway::TRetryPolicy::TPtr retryPolicy,
         TString url,
         TS3Credentials::TAuthInfo authInfo,
         TString pattern,
diff --git a/ydb/library/yql/providers/s3/object_listers/yql_s3_list.cpp b/ydb/library/yql/providers/s3/object_listers/yql_s3_list.cpp
@@ -243,6 +243,7 @@ class TS3Lister : public IS3Lister {
 
     TS3Lister(
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         const TListingRequest& listingRequest,
         const TMaybe<TString>& delimiter,
         size_t maxFilesPerQuery,
@@ -265,7 +266,7 @@ class TS3Lister : public IS3Lister {
             NewPromise<TMaybe<TListingContext>>(),
             std::make_shared<TListEntries>(),
             IHTTPGateway::TWeakPtr(httpGateway),
-            GetHTTPDefaultRetryPolicy(),
+            retryPolicy,
             CreateGuidAsString(),
             std::move(request),
             delimiter,
@@ -391,7 +392,7 @@ class TS3Lister : public IS3Lister {
                     NewPromise<TMaybe<TListingContext>>(),
                     std::make_shared<TListEntries>(),
                     ctx.GatewayWeak,
-                    GetHTTPDefaultRetryPolicy(),
+                    ctx.RetryPolicy,
                     CreateGuidAsString(),
                     ctx.ListingRequest,
                     ctx.Delimiter,
@@ -457,15 +458,16 @@ class TS3ParallelLimitedListerFactory : public IS3ListerFactory {
 
     TFuture<NS3Lister::IS3Lister::TPtr> Make(
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         const NS3Lister::TListingRequest& listingRequest,
         const TMaybe<TString>& delimiter,
         bool allowLocalFiles) override {
         auto acquired = Semaphore->AcquireAsync();
         return acquired.Apply(
-            [ctx = SharedCtx, httpGateway, listingRequest, delimiter, allowLocalFiles](const auto& f) {
+            [ctx = SharedCtx, httpGateway, retryPolicy, listingRequest, delimiter, allowLocalFiles](const auto& f) {
                 return std::shared_ptr<NS3Lister::IS3Lister>(new TListerLockReleaseWrapper{
                     NS3Lister::MakeS3Lister(
-                        httpGateway, listingRequest, delimiter, allowLocalFiles, ctx),
+                        httpGateway, retryPolicy, listingRequest, delimiter, allowLocalFiles, ctx),
                     std::make_unique<TAsyncSemaphore::TAutoRelease>(
                         f.GetValue()->MakeAutoRelease())});
             });
@@ -507,13 +509,14 @@ class TS3ParallelLimitedListerFactory : public IS3ListerFactory {
 
 IS3Lister::TPtr MakeS3Lister(
     const IHTTPGateway::TPtr& httpGateway,
+    const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
     const TListingRequest& listingRequest,
     const TMaybe<TString>& delimiter,
     bool allowLocalFiles,
     TSharedListingContextPtr sharedCtx) {
     if (listingRequest.Url.substr(0, 7) != "file://") {
         return std::make_shared<TS3Lister>(
-            httpGateway, listingRequest, delimiter, 1000, std::move(sharedCtx));
+            httpGateway, retryPolicy, listingRequest, delimiter, 1000, std::move(sharedCtx));
     }
 
     if (!allowLocalFiles) {
diff --git a/ydb/library/yql/providers/s3/object_listers/yql_s3_list.h b/ydb/library/yql/providers/s3/object_listers/yql_s3_list.h
@@ -165,6 +165,7 @@ class IS3Lister : public TIterator<NThreading::TFuture<TListResult>> {
 
 IS3Lister::TPtr MakeS3Lister(
     const IHTTPGateway::TPtr& httpGateway,
+    const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
     const TListingRequest& listingRequest,
     const TMaybe<TString>& delimiter,
     bool allowLocalFiles,
@@ -176,6 +177,7 @@ class IS3ListerFactory {
 
     virtual NThreading::TFuture<NS3Lister::IS3Lister::TPtr> Make(
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         const NS3Lister::TListingRequest& listingRequest,
         const TMaybe<TString>& delimiter,
         bool allowLocalFiles) = 0;
diff --git a/ydb/library/yql/providers/s3/provider/yql_s3_dq_integration.cpp b/ydb/library/yql/providers/s3/provider/yql_s3_dq_integration.cpp
@@ -511,6 +511,7 @@ class TS3DqIntegration: public TDqIntegrationBase {
                         fileQueueBatchSizeLimit,
                         fileQueueBatchObjectCountLimit,
                         State_->Gateway,
+                        State_->GatewayRetryPolicy,
                         connect.Url,
                         GetAuthInfo(State_->CredentialsFactory, State_->Configuration->Tokens.at(cluster)),
                         pathPattern,
diff --git a/ydb/library/yql/providers/s3/provider/yql_s3_io_discovery.cpp b/ydb/library/yql/providers/s3/provider/yql_s3_io_discovery.cpp
@@ -88,6 +88,7 @@ class TS3IODiscoveryTransformer : public TGraphTransformerBase {
               State_->Configuration->RegexpCacheSize))
         , ListingStrategy_(MakeS3ListingStrategy(
               State_->Gateway,
+              State_->GatewayRetryPolicy,
               ListerFactory_,
               State_->Configuration->MinDesiredDirectoriesOfFilesPerQuery,
               State_->Configuration->MaxInflightListsPerQuery,
diff --git a/ydb/library/yql/providers/s3/provider/yql_s3_listing_strategy.cpp b/ydb/library/yql/providers/s3/provider/yql_s3_listing_strategy.cpp
@@ -134,14 +134,15 @@ class TFlatFileS3ListingStrategy : public TCollectingS3ListingStrategy {
     TFlatFileS3ListingStrategy(
         const IS3ListerFactory::TPtr& listerFactory,
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         bool allowLocalFiles)
         : TCollectingS3ListingStrategy(
-              [allowLocalFiles, httpGateway, listerFactory](
+              [allowLocalFiles, httpGateway, retryPolicy, listerFactory](
                   const TListingRequest& listingRequest,
                   TS3ListingOptions options) {
                   Y_UNUSED(options);
                   return listerFactory->Make(
-                      httpGateway, listingRequest, Nothing(), allowLocalFiles);
+                      httpGateway, retryPolicy, listingRequest, Nothing(), allowLocalFiles);
               },
               "TFlatFileS3ListingStrategy") { }
 };
@@ -151,14 +152,15 @@ class TDirectoryS3ListingStrategy : public TCollectingS3ListingStrategy {
     TDirectoryS3ListingStrategy(
         const IS3ListerFactory::TPtr& listerFactory,
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         bool allowLocalFiles)
         : TCollectingS3ListingStrategy(
-              [allowLocalFiles, httpGateway, listerFactory](
+              [allowLocalFiles, httpGateway, retryPolicy, listerFactory](
                   const TListingRequest& listingRequest,
                   TS3ListingOptions options) {
                   Y_UNUSED(options);
                   return listerFactory->Make(
-                      httpGateway, listingRequest, "/", allowLocalFiles);
+                      httpGateway, retryPolicy, listingRequest, "/", allowLocalFiles);
               },
               "TDirectoryS3ListingStrategy") { }
 };
@@ -402,9 +404,10 @@ class TPartitionedDatasetS3ListingStrategy : public TCollectingS3ListingStrategy
     TPartitionedDatasetS3ListingStrategy(
         const IS3ListerFactory::TPtr& listerFactory,
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         bool allowLocalFiles)
         : TCollectingS3ListingStrategy(
-              [listerFactory, httpGateway, allowLocalFiles](
+              [listerFactory, httpGateway, retryPolicy, allowLocalFiles](
                   const TListingRequest& listingRequest,
                   TS3ListingOptions options) {
                   auto ptr = std::shared_ptr<IS3Lister>(
@@ -413,7 +416,7 @@ class TPartitionedDatasetS3ListingStrategy : public TCollectingS3ListingStrategy
                           listingRequest.Prefix,
                           options,
                           TDirectoryS3ListingStrategy{
-                              listerFactory, httpGateway, allowLocalFiles}});
+                              listerFactory, httpGateway, retryPolicy, allowLocalFiles}});
                   return MakeFuture(std::move(ptr));
               },
               "TPartitionedDatasetS3ListingStrategy") { }
@@ -557,10 +560,11 @@ class TUnPartitionedDatasetS3ListingStrategy : public TCollectingS3ListingStrate
     TUnPartitionedDatasetS3ListingStrategy(
         const IS3ListerFactory::TPtr& listerFactory,
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         size_t minParallelism,
         bool allowLocalFiles)
         : TCollectingS3ListingStrategy(
-              [listerFactory, httpGateway, minParallelism, allowLocalFiles](
+              [listerFactory, httpGateway, retryPolicy, minParallelism, allowLocalFiles](
                   const TListingRequest& listingRequest,
                   TS3ListingOptions options) {
                   auto ptr = std::shared_ptr<IS3Lister>(
@@ -579,7 +583,7 @@ class TUnPartitionedDatasetS3ListingStrategy : public TCollectingS3ListingStrate
                                   : listingRequest.Pattern.substr(
                                         0, NS3::GetFirstWildcardPos(listingRequest.Pattern))},
                           TDirectoryS3ListingStrategy{
-                              listerFactory, httpGateway, allowLocalFiles},
+                              listerFactory, httpGateway, retryPolicy, allowLocalFiles},
                           minParallelism,
                           options.MaxResultSet});
                   return MakeFuture(std::move(ptr));
@@ -893,11 +897,12 @@ class TConcurrentUnPartitionedDatasetS3ListingStrategy :
     TConcurrentUnPartitionedDatasetS3ListingStrategy(
         const IS3ListerFactory::TPtr& listerFactory,
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         size_t minParallelism,
         size_t maxParallelOps,
         bool allowLocalFiles)
         : TCollectingS3ListingStrategy(
-              [listerFactory, httpGateway, minParallelism, allowLocalFiles, maxParallelOps](
+              [listerFactory, httpGateway, retryPolicy, minParallelism, allowLocalFiles, maxParallelOps](
                   const TListingRequest& listingRequest,
                   TS3ListingOptions options) {
                   auto ptr = std::shared_ptr<IS3Lister>(
@@ -929,7 +934,7 @@ class TConcurrentUnPartitionedDatasetS3ListingStrategy :
                                   : listingRequest.Pattern.substr(
                                         0, NS3::GetFirstWildcardPos(listingRequest.Pattern))},
                           TDirectoryS3ListingStrategy{
-                              listerFactory, httpGateway, allowLocalFiles},
+                              listerFactory, httpGateway, retryPolicy, allowLocalFiles},
                           options.MaxResultSet,
                           maxParallelOps});
                   return MakeFuture(std::move(ptr));
@@ -943,10 +948,11 @@ class TConcurrentPartitionedDatasetS3ListingStrategy :
     TConcurrentPartitionedDatasetS3ListingStrategy(
         const IS3ListerFactory::TPtr& listerFactory,
         const IHTTPGateway::TPtr& httpGateway,
+        const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
         size_t maxParallelOps,
         bool allowLocalFiles)
         : TCollectingS3ListingStrategy(
-              [listerFactory, httpGateway, allowLocalFiles, maxParallelOps](
+              [listerFactory, httpGateway, retryPolicy, allowLocalFiles, maxParallelOps](
                   const TListingRequest& listingRequest,
                   TS3ListingOptions options) {
                   auto ptr = std::shared_ptr<IS3Lister>(
@@ -974,12 +980,12 @@ class TConcurrentPartitionedDatasetS3ListingStrategy :
                                   : listingRequest.Pattern.substr(
                                         0, NS3::GetFirstWildcardPos(listingRequest.Pattern))},
                           TDirectoryS3ListingStrategy{
-                              listerFactory, httpGateway, allowLocalFiles},
+                              listerFactory, httpGateway, retryPolicy, allowLocalFiles},
                           options.MaxResultSet,
                           maxParallelOps});
                   return MakeFuture(std::move(ptr));
               },
-              "TConcurrentUnPartitionedDatasetS3ListingStrategy") { }
+              "TConcurrentPartitionedDatasetS3ListingStrategy") { }
 };
 
 
@@ -1024,6 +1030,7 @@ class TLoggingS3ListingStrategy : public IS3ListingStrategy {
 
 IS3ListingStrategy::TPtr MakeS3ListingStrategy(
     const IHTTPGateway::TPtr& httpGateway,
+    const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
     const IS3ListerFactory::TPtr& listerFactory,
     ui64 minDesiredDirectoriesOfFilesPerQuery,
     size_t maxParallelOps,
@@ -1032,7 +1039,7 @@ IS3ListingStrategy::TPtr MakeS3ListingStrategy(
         std::make_shared<TCompositeS3ListingStrategy>(
             std::vector<std::shared_ptr<IS3ListingStrategy>>{
                 std::make_shared<TFlatFileS3ListingStrategy>(
-                    listerFactory, httpGateway, allowLocalFiles),
+                    listerFactory, httpGateway, retryPolicy, allowLocalFiles),
                 std::make_shared<TConditionalS3ListingStrategy>(
                     std::initializer_list<TConditionalS3ListingStrategy::TPair>{
                         {[](const TS3ListingOptions& options) {
@@ -1042,6 +1049,7 @@ IS3ListingStrategy::TPtr MakeS3ListingStrategy(
                          std::make_shared<TPartitionedDatasetS3ListingStrategy>(
                              listerFactory,
                              httpGateway,
+                             retryPolicy,
                              allowLocalFiles)},
                         {[](const TS3ListingOptions& options) {
                              return options.IsPartitionedDataset &&
@@ -1050,6 +1058,7 @@ IS3ListingStrategy::TPtr MakeS3ListingStrategy(
                          std::make_shared<TConcurrentPartitionedDatasetS3ListingStrategy>(
                              listerFactory,
                              httpGateway,
+                             retryPolicy,
                              maxParallelOps,
                              allowLocalFiles)},
                         {[](const TS3ListingOptions& options) {
@@ -1059,6 +1068,7 @@ IS3ListingStrategy::TPtr MakeS3ListingStrategy(
                          std::make_shared<TUnPartitionedDatasetS3ListingStrategy>(
                              listerFactory,
                              httpGateway,
+                             retryPolicy,
                              minDesiredDirectoriesOfFilesPerQuery,
                              allowLocalFiles)},
                         {[](const TS3ListingOptions& options) {
@@ -1068,6 +1078,7 @@ IS3ListingStrategy::TPtr MakeS3ListingStrategy(
                          std::make_shared<TConcurrentUnPartitionedDatasetS3ListingStrategy>(
                              listerFactory,
                              httpGateway,
+                             retryPolicy,
                              minDesiredDirectoriesOfFilesPerQuery,
                              maxParallelOps,
                              allowLocalFiles)}})}));
diff --git a/ydb/library/yql/providers/s3/provider/yql_s3_listing_strategy.h b/ydb/library/yql/providers/s3/provider/yql_s3_listing_strategy.h
@@ -31,6 +31,7 @@ class IS3ListingStrategy {
 
 IS3ListingStrategy::TPtr MakeS3ListingStrategy(
     const IHTTPGateway::TPtr& httpGateway,
+    const IHTTPGateway::TRetryPolicy::TPtr& retryPolicy,
     const NS3Lister::IS3ListerFactory::TPtr& listerFactory,
     ui64 minDesiredDirectoriesOfFilesPerQuery,
     size_t maxParallelOps,
diff --git a/ydb/library/yql/providers/s3/provider/yql_s3_provider.h b/ydb/library/yql/providers/s3/provider/yql_s3_provider.h

Original file line number	Diff line number	Diff line change
`@@ -304,7 +304,8 @@ struct TObjectStorageExternalSource : public IExternalSource {`
`304`	`304`	`}`
`305`	`305`
`306`	`306`	`auto httpGateway = NYql::IHTTPGateway::Make();`
`307`		`- auto s3Lister = NYql::NS3Lister::MakeS3Lister(httpGateway, NYql::NS3Lister::TListingRequest{`
	`307`	`+ auto httpRetryPolicy = NYql::GetHTTPDefaultRetryPolicy(NYql::THttpRetryPolicyOptions{.RetriedCurlCodes = NYql::FqRetriedCurlCodes()});`
	`308`	`+ auto s3Lister = NYql::NS3Lister::MakeS3Lister(httpGateway, httpRetryPolicy, NYql::NS3Lister::TListingRequest{`
`308`	`309`	`.Url = meta->DataSourceLocation,`
`309`	`310`	`.AuthInfo = authInfo,`
`310`	`311`	`.Pattern = meta->TableLocation,`
Original file line number	Diff line number	Diff line change
`@@ -29,7 +29,8 @@ std::unordered_set<CURLcode> FqRetriedCurlCodes() {`
`29`	`29`	`CURLE_SEND_ERROR,`
`30`	`30`	`CURLE_RECV_ERROR,`
`31`	`31`	`CURLE_NO_CONNECTION_AVAILABLE,`
`32`		`- CURLE_GOT_NOTHING`
	`32`	`+ CURLE_GOT_NOTHING,`
	`33`	`+ CURLE_COULDNT_RESOLVE_HOST`
`33`	`34`	`};`
`34`	`35`	`}`
`35`	`36`