mirror of
https://github.com/versity/scoutfs.git
synced 2026-01-07 04:26:29 +00:00
7d67489b0c
The very first greeting a client sends is unique becuase it doesn't yet have a server_term field set and tells the server to create items to track the client. A server processing this request can create the items and then shut down before the client is able to receive the reply. They'll resend the greeting without server_term but then the next server will get -EEXIST errors as it tries to create items for the client. This causes the connection to break, which the client tries to reestablish, and the pattern repeats indefinitely. The fix is to simply recognize that -EEXIST is acceptable during item creation. Server message handlers always have to address the case where a resent message was already processed by a previous server but it's response didn't make it to the client. Signed-off-by: Zach Brown <zab@versity.com>