18c2ecf20Sopenharmony_ci// vim: set sw=2 sts=2 : 28c2ecf20Sopenharmony_cidigraph { 38c2ecf20Sopenharmony_ci rankdir=BT 48c2ecf20Sopenharmony_ci bgcolor=white 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ci node [shape=plaintext] 78c2ecf20Sopenharmony_ci node [fontcolor=black] 88c2ecf20Sopenharmony_ci 98c2ecf20Sopenharmony_ci StandAlone [ style=filled,fillcolor=gray,label=StandAlone ] 108c2ecf20Sopenharmony_ci 118c2ecf20Sopenharmony_ci node [fontcolor=lightgray] 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ci Unconnected [ label=Unconnected ] 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci CommTrouble [ shape=record, 168c2ecf20Sopenharmony_ci label="{communication loss|{Timeout|BrokenPipe|NetworkFailure}}" ] 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ci node [fontcolor=gray] 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci subgraph cluster_try_connect { 218c2ecf20Sopenharmony_ci label="try to connect, handshake" 228c2ecf20Sopenharmony_ci rank=max 238c2ecf20Sopenharmony_ci WFConnection [ label=WFConnection ] 248c2ecf20Sopenharmony_ci WFReportParams [ label=WFReportParams ] 258c2ecf20Sopenharmony_ci } 268c2ecf20Sopenharmony_ci 278c2ecf20Sopenharmony_ci TearDown [ label=TearDown ] 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci Connected [ label=Connected,style=filled,fillcolor=green,fontcolor=black ] 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci node [fontcolor=lightblue] 328c2ecf20Sopenharmony_ci 338c2ecf20Sopenharmony_ci StartingSyncS [ label=StartingSyncS ] 348c2ecf20Sopenharmony_ci StartingSyncT [ label=StartingSyncT ] 358c2ecf20Sopenharmony_ci 368c2ecf20Sopenharmony_ci subgraph cluster_bitmap_exchange { 378c2ecf20Sopenharmony_ci node [fontcolor=red] 388c2ecf20Sopenharmony_ci fontcolor=red 398c2ecf20Sopenharmony_ci label="new application (WRITE?) requests blocked\lwhile bitmap is exchanged" 408c2ecf20Sopenharmony_ci 418c2ecf20Sopenharmony_ci WFBitMapT [ label=WFBitMapT ] 428c2ecf20Sopenharmony_ci WFSyncUUID [ label=WFSyncUUID ] 438c2ecf20Sopenharmony_ci WFBitMapS [ label=WFBitMapS ] 448c2ecf20Sopenharmony_ci } 458c2ecf20Sopenharmony_ci 468c2ecf20Sopenharmony_ci node [fontcolor=blue] 478c2ecf20Sopenharmony_ci 488c2ecf20Sopenharmony_ci cluster_resync [ shape=record,label="{<any>resynchronisation process running\l'concurrent' application requests allowed|{{<T>PausedSyncT\nSyncTarget}|{<S>PausedSyncS\nSyncSource}}}" ] 498c2ecf20Sopenharmony_ci 508c2ecf20Sopenharmony_ci node [shape=box,fontcolor=black] 518c2ecf20Sopenharmony_ci 528c2ecf20Sopenharmony_ci // drbdadm [label="drbdadm connect"] 538c2ecf20Sopenharmony_ci // handshake [label="drbd_connect()\ndrbd_do_handshake\ndrbd_sync_handshake() etc."] 548c2ecf20Sopenharmony_ci // comm_error [label="communication trouble"] 558c2ecf20Sopenharmony_ci 568c2ecf20Sopenharmony_ci // 578c2ecf20Sopenharmony_ci // edges 588c2ecf20Sopenharmony_ci // -------------------------------------- 598c2ecf20Sopenharmony_ci 608c2ecf20Sopenharmony_ci StandAlone -> Unconnected [ label="drbdadm connect" ] 618c2ecf20Sopenharmony_ci Unconnected -> StandAlone [ label="drbdadm disconnect\lor serious communication trouble" ] 628c2ecf20Sopenharmony_ci Unconnected -> WFConnection [ label="receiver thread is started" ] 638c2ecf20Sopenharmony_ci WFConnection -> WFReportParams [ headlabel="accept()\land/or \lconnect()\l" ] 648c2ecf20Sopenharmony_ci 658c2ecf20Sopenharmony_ci WFReportParams -> StandAlone [ label="during handshake\lpeers do not agree\labout something essential" ] 668c2ecf20Sopenharmony_ci WFReportParams -> Connected [ label="data identical\lno sync needed",color=green,fontcolor=green ] 678c2ecf20Sopenharmony_ci 688c2ecf20Sopenharmony_ci WFReportParams -> WFBitMapS 698c2ecf20Sopenharmony_ci WFReportParams -> WFBitMapT 708c2ecf20Sopenharmony_ci WFBitMapT -> WFSyncUUID [minlen=0.1,constraint=false] 718c2ecf20Sopenharmony_ci 728c2ecf20Sopenharmony_ci WFBitMapS -> cluster_resync:S 738c2ecf20Sopenharmony_ci WFSyncUUID -> cluster_resync:T 748c2ecf20Sopenharmony_ci 758c2ecf20Sopenharmony_ci edge [color=green] 768c2ecf20Sopenharmony_ci cluster_resync:any -> Connected [ label="resnyc done",fontcolor=green ] 778c2ecf20Sopenharmony_ci 788c2ecf20Sopenharmony_ci edge [color=red] 798c2ecf20Sopenharmony_ci WFReportParams -> CommTrouble 808c2ecf20Sopenharmony_ci Connected -> CommTrouble 818c2ecf20Sopenharmony_ci cluster_resync:any -> CommTrouble 828c2ecf20Sopenharmony_ci edge [color=black] 838c2ecf20Sopenharmony_ci CommTrouble -> Unconnected [label="receiver thread is stopped" ] 848c2ecf20Sopenharmony_ci 858c2ecf20Sopenharmony_ci} 86