libceph: don't time out osd requests that haven't been received
Keep track of when an outgoing message is ACKed (i.e., the server fully
received it and, presumably, queued it for processing). Time out OSD
requests only if it's been too long since they've been received.
This prevents timeouts and connection thrashing when the OSDs are simply
busy and are throttling the requests they read off the network.
Reviewed-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Sage Weil <sage@newdream.net>
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 78b55f4..c340e2e 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -486,13 +486,10 @@
m = list_first_entry(&con->out_queue,
struct ceph_msg, list_head);
con->out_msg = m;
- if (test_bit(LOSSYTX, &con->state)) {
- list_del_init(&m->list_head);
- } else {
- /* put message on sent list */
- ceph_msg_get(m);
- list_move_tail(&m->list_head, &con->out_sent);
- }
+
+ /* put message on sent list */
+ ceph_msg_get(m);
+ list_move_tail(&m->list_head, &con->out_sent);
/*
* only assign outgoing seq # if we haven't sent this message
@@ -1399,6 +1396,7 @@
break;
dout("got ack for seq %llu type %d at %p\n", seq,
le16_to_cpu(m->hdr.type), m);
+ m->ack_stamp = jiffies;
ceph_msg_remove(m);
}
prepare_read_tag(con);