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2017-10-13 10:56 GMT+08:00 Xiaoxi Chen <superdebuger@xxxxxxxxx>:
> Hi,
>
> We sometimes seen client (fs kernel) get evicted by MDS and try to
> reconnect, even we set mds_session_blacklist_on_evict = True, client still
> cannot reconnect due to below code:
>
> if (!mds->is_reconnect() && mds->get_want_state() ==
> CEPH_MDS_STATE_RECONNECT) {
> dout(10) << " we're almost in reconnect state (mdsmap delivery race?);
> waiting" << dendl;
> mds->wait_for_reconnect(new C_MDS_RetryMessage(mds, m));
> return;
> }
>
> Could someone share any insight on why MDS only accept reconnect in
> reconnect state? and how, if the client is get evicted , can automatically
> recovered? note that remount is usually impossible as umount will always
> hang(due to cannot talk to mds).
>
>
>
> Xiaoxi
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