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Antalya 26.3: Iceberg client, handle namespaceExists error #1918

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Antalya 26.3: Iceberg client, handle namespaceExists error #1918

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9d5c434
Added handling of 409 namespacealreadyexists in createNamespaceIfNotE…
subkanthi Jun 16, 2026
d356334
Added handling of 409 namespacealreadyexists in createNamespaceIfNotE…
subkanthi Jun 16, 2026
105f729
rollback not required change
subkanthi Jun 16, 2026
9ea143f
set http_max_tries to 1 for createNamespaceIfNotExists
subkanthi Jun 16, 2026
c726c3f
Merge branch 'antalya-26.3' into 1907-create-iceberg-table-takes-too-…
subkanthi Jun 19, 2026
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16 changes: 13 additions & 3 deletions src/Databases/DataLake/RestCatalog.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1021,14 +1021,15 @@ bool RestCatalog::getTableMetadataImpl(
return true;
}

void RestCatalog::sendRequest(const String & endpoint, Poco::JSON::Object::Ptr request_body, const String & method, bool ignore_result) const
void RestCatalog::sendRequest(const String & endpoint, Poco::JSON::Object::Ptr request_body, const String & method, bool ignore_result, std::optional<DB::ReadSettings> read_settings_override) const
{
std::ostringstream oss; // STYLE_CHECK_ALLOW_STD_STRING_STREAM
if (request_body)
request_body->stringify(oss);
const std::string body_str = DB::removeEscapedSlashes(oss.str());

const auto & context = getContext();
DB::ReadSettings read_settings = read_settings_override.value_or(context->getReadSettings());

DB::ReadWriteBufferFromHTTP::OutStreamCallback out_stream_callback;
if (!body_str.empty())
Expand All @@ -1050,7 +1051,7 @@ void RestCatalog::sendRequest(const String & endpoint, Poco::JSON::Object::Ptr r
auto wb = DB::BuilderRWBufferFromHTTP(url)
.withConnectionGroup(DB::HTTPConnectionGroupType::HTTP)
.withMethod(method)
.withSettings(context->getReadSettings())
.withSettings(read_settings)
.withTimeouts(DB::ConnectionTimeouts::getHTTPTimeouts(context->getSettingsRef(), context->getServerSettings()))
.withHostFilter(&context->getRemoteHostFilter())
.withHeaders(headers)
Expand Down Expand Up @@ -1085,7 +1086,16 @@ void RestCatalog::createNamespaceIfNotExists(const String & namespace_name, cons
{
ProfileEvents::increment(ProfileEvents::DataLakeRestCatalogCreateNamespace);
auto timer = DB::CurrentThread::getProfileEvents().timer(ProfileEvents::DataLakeRestCatalogCreateNamespaceMicroseconds);
sendRequest(endpoint, request_body);
DB::ReadSettings read_settings = getContext()->getReadSettings();
read_settings.http_max_tries = 1;

@subkanthi subkanthi Jun 18, 2026 •
edited
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couldnt find a better way to stop retrying as the retries happen in sendRequest, adding to nonRetriable error codes will affect all http calls.

sendRequest(endpoint, request_body, Poco::Net::HTTPRequest::HTTP_POST, false, read_settings);
}
catch (const DB::HTTPException & e)
{
if (e.getHTTPStatus() == Poco::Net::HTTPResponse::HTTP_CONFLICT)
LOG_DEBUG(log, "Namespace {} already exists", namespace_name);
else
DB::tryLogCurrentException(log);
}
catch (...)
{
Expand Down
4 changes: 3 additions & 1 deletion src/Databases/DataLake/RestCatalog.h
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
#include <Databases/DataLake/ICatalog.h>
#include <Poco/Net/HTTPBasicCredentials.h>
#include <IO/ReadWriteBufferFromHTTP.h>
#include <IO/ReadSettings.h>
#include <IO/HTTPHeaderEntries.h>
#include <Interpreters/Context_fwd.h>
#include <filesystem>
Expand Down Expand Up @@ -192,7 +193,8 @@ class RestCatalog : public ICatalog, public DB::WithContext
const String & endpoint,
Poco::JSON::Object::Ptr request_body,
const String & method = Poco::Net::HTTPRequest::HTTP_POST,
bool ignore_result = false) const;
bool ignore_result = false,
std::optional<DB::ReadSettings> read_settings_override = std::nullopt) const;

std::pair<std::shared_ptr<IStorageCredentials>, String> getCredentialsAndEndpoint(Poco::JSON::Object::Ptr object, const String & location) const;

Expand Down
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