In the current design, OpenWriterAt provides the interface for random-access
writes, and openChunkWriterFromOpenWriterAt wraps this interface to enable
parallel chunk uploads using multiple goroutines. A global connection pool is
already in place to manage SMB connections across files.
However, currently only one connection is used per file, which makes multiple
goroutines compete for the connection during multithreaded writes.
This changes create separate connections for each goroutine, which allows true
parallelism by giving each goroutine its own SMB connection
Signed-off-by: sudipto baral <sudiptobaral.me@gmail.com>
This change enhances the SMB backend in Rclone to automatically refresh
Kerberos credentials when the associated ccache file is updated.
Previously, credentials were only loaded once per path and cached
indefinitely, which caused issues when service tickets expired or the
cache was renewed on the server.