From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 21 Apr 2024 13:54:28 +0200 Subject: Adding upstream version 18.2.2. Signed-off-by: Daniel Baumann --- doc/cephfs/mds-state-diagram.dot | 75 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 doc/cephfs/mds-state-diagram.dot (limited to 'doc/cephfs/mds-state-diagram.dot') diff --git a/doc/cephfs/mds-state-diagram.dot b/doc/cephfs/mds-state-diagram.dot new file mode 100644 index 000000000..8c9fa25d0 --- /dev/null +++ b/doc/cephfs/mds-state-diagram.dot @@ -0,0 +1,75 @@ +digraph { + +node [shape=circle,style=unfilled,fixedsize=true,width=2.0] + +node [color=blue,peripheries=1]; +N0 [label="up:boot"] + +node [color=green,peripheries=1]; +S1 [label="up:standby"] +N0 -> S1 [color=green,penwidth=2.0]; +S2 [label="up:standby_replay"] +S1 -> S2 [color=green,penwidth=2.0]; + +node [color=orange,peripheries=2]; +N1 [label="up:creating"] +S1 -> N1 [color=orange,penwidth=2.0]; +N2 [label="up:starting"] +S1 -> N2 [color=orange,penwidth=2.0]; +N3 [label="up:replay"] +S1 -> N3 [color=orange,penwidth=2.0]; +S2 -> N3 [color=orange,penwidth=2.0]; +N4 [label="up:resolve"] +N3 -> N4 [color=orange,penwidth=2.0]; +N5 [label="up:reconnect"] +N3 -> N5 [color=orange,penwidth=2.0]; +N4 -> N5 [color=orange,penwidth=2.0]; +N6 [label="up:rejoin"] +N5 -> N6 [color=orange,penwidth=2.0]; +N7 [label="up:clientreplay"] +N6 -> N7 [color=orange,penwidth=2.0]; + +node [color=green,peripheries=2]; +S0 [label="up:active"] +N7 -> S0 [color=green,penwidth=2.0]; +N1 -> S0 [color=green,penwidth=2.0]; +N2 -> S0 [color=green,penwidth=2.0]; +N6 -> S0 [color=green,penwidth=2.0]; + +// going down but still accessible by clients +node [color=purple,peripheries=2]; +S3 [label="up:stopping"] +S0 -> S3 [color=purple,penwidth=2.0]; + +// terminal (but "in") +node [shape=polygon,sides=6,color=red,peripheries=2]; +D0 [label="down:failed"] +N2 -> D0 [color=red,penwidth=2.0]; +N3 -> D0 [color=red,penwidth=2.0]; +N4 -> D0 [color=red,penwidth=2.0]; +N5 -> D0 [color=red,penwidth=2.0]; +N6 -> D0 [color=red,penwidth=2.0]; +N7 -> D0 [color=red,penwidth=2.0]; +S0 -> D0 [color=red,penwidth=2.0]; +S3 -> D0 [color=red,penwidth=2.0]; +D0 -> N3 [color=red,penwidth=2.0]; + +// terminal (but not "in") +node [shape=polygon,sides=6,color=black,peripheries=1]; +D1 [label="down:damaged"] +S2 -> D1 [color=black,penwidth=2.0]; +N3 -> D1 [color=black,penwidth=2.0]; +N4 -> D1 [color=black,penwidth=2.0]; +N5 -> D1 [color=black,penwidth=2.0]; +N6 -> D1 [color=black,penwidth=2.0]; +N7 -> D1 [color=black,penwidth=2.0]; +S0 -> D1 [color=black,penwidth=2.0]; +S3 -> D1 [color=black,penwidth=2.0]; +D1 -> D0 [color=red,penwidth=2.0] + +node [shape=polygon,sides=6,color=purple,peripheries=1]; +D3 [label="down:stopped"] +S3 -> D3 [color=purple,penwidth=2.0]; +N6 -> D3 [color=purple,penwidth=2.0]; + +} -- cgit v1.2.3