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Chris LuandGitHub
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* mini: stop forcing -dataCenter onto the embedded S3 gateway -dataCenter names the embedded volume server's data center, but it was also copied into the S3 gateway options, overwriting an explicit -s3.dataCenter and making every S3 write carry an explicit dataCenter pin in its assign request. That pin outranks fs.configure dataCenter rules, so a mini node in one DC could never steer S3 writes to volume servers in another. With the copy removed, assign requests carry no DC by default: the filer's own -dataCenter still provides the write fallback, and fs.configure rules now apply to S3 traffic. -s3.dataCenter still pins reads and writes when set explicitly. * server: give embedded s3/sftp gateways their own -dataCenter flags -dataCenter names the embedded volume server's data center, but it was also copied into the S3 and SFTP gateway options, and neither gateway had a flag of its own to override it. The injected DC lands in every S3 assign request as an explicit pin, outranking fs.configure dataCenter rules. Add -s3.dataCenter and -sftp.dataCenter (same names as weed filer) and stop copying -dataCenter into them, so gateway writes go through the filer's rules and defaults unless a gateway DC is set explicitly. * filer: stop defaulting embedded gateway dataCenter to -dataCenter The embedded S3 and SFTP gateways inherited -dataCenter whenever their own flag was unset. That made every S3 assign request carry the DC as an explicit pin, outranking fs.configure dataCenter rules, and left no way to let rules steer writes while -dataCenter was set. Let -s3.dataCenter and -sftp.dataCenter stay empty unless set, matching standalone weed s3 and weed sftp. The filer's own -dataCenter still provides the write fallback.