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Parse query from metadata exception throw fix

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This commit is contained in:
Maksim Kita 2021-10-05 19:34:25 +03:00
parent dc657a2c5e
commit 4fde987ad1
1 changed files with 11 additions and 9 deletions
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20
src/Databases/DatabaseOnDisk.cpp
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@ -34,6 +34,7 @@ namespace ErrorCodes
extern const int NOT_IMPLEMENTED;
extern const int LOGICAL_ERROR;
extern const int FILE_DOESNT_EXIST;
extern const int CANNOT_OPEN_FILE;
extern const int INCORRECT_FILE_NAME;
extern const int SYNTAX_ERROR;
extern const int TABLE_ALREADY_EXISTS;
@ -646,19 +647,20 @@ ASTPtr DatabaseOnDisk::parseQueryFromMetadata(
{
String query;
try
int metadata_file_fd = ::open(metadata_file_path.c_str(), O_RDONLY | O_CLOEXEC);
if (metadata_file_fd == -1)
{
ReadBufferFromFile in(metadata_file_path, METADATA_FILE_BUFFER_SIZE);
readStringUntilEOF(query, in);
}
catch (const Exception & e)
{
if (!throw_on_error && e.code() == ErrorCodes::FILE_DOESNT_EXIST)
if (errno == ENOENT && !throw_on_error)
return nullptr;
else
throw;
throwFromErrnoWithPath("Cannot open file " + metadata_file_path, metadata_file_path,
errno == ENOENT ? ErrorCodes::FILE_DOESNT_EXIST : ErrorCodes::CANNOT_OPEN_FILE);
}
ReadBufferFromFile in(metadata_file_fd, metadata_file_path, METADATA_FILE_BUFFER_SIZE);
readStringUntilEOF(query, in);
/** Empty files with metadata are generated after a rough restart of the server.
* Remove these files to slightly reduce the work of the admins on startup.
*/