The old leader demotes lessor and all the leases' expire time will be
updated. Instead of returning incorrect remaining TTL, we should return
errors to force client retry.
Cherry-pick: d3bb6f688b4643155b4a9924cec726bdc76a1306
Signed-off-by: Wei Fu <fuweid89@gmail.com>
Disable following redirects from peer HTTP communication on the client's side.
Etcd server may run into SSRF (Server-side request forgery) when adding a new
member. If users provide a malicious peer URL, the existing etcd members may be
redirected to another unexpected internal URL when getting the new member's
version.
Signed-off-by: Ivan Valdes <ivan@vald.es>
suppose a lease granting request from a follower goes through and followed by a lease look up or renewal, the leader might not apply the lease grant request locally. So the leader might not find the lease from the lease look up or renewal request which will result lease not found error. To fix this issue, we force the leader to apply its pending commited index before looking up lease.
FIX#6978
Would retry a few times before returning a not primary error that
the client should never see. Instead, use proper timeouts and
then return a request timeout error on failure.
Fixes#6922
