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changchengx/pwl replication

Last active May 8, 2021 09:14
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PWL ReplicaDaemon & ReplicaMonitor
Raw
pwl replication
+-----------------------------------+ +-----------------------------------------------+
|+---------------------------------+| | +--------------------+|
|| ReplicaDaemonInfo: || | |PaxosServiceMessage ||
|| || |+---------------------------------------------+|
|| daemon_id; || ||MReplicaDaemonBlink(MSG_REPLICADAEMON_BLINK):||
|| rnic_bind_port; || || ||
|| rnic_addr; || ||ReplicaDaemonInfo; ||
|| free_size; || |+---------------------------------------------+|
|+---------------------------------+| | +--------------------+|
|+---------------------------------+| | |PaxosServiceMessage ||
|| ReqReplicaDaemonInfo: || |+---------------------------------------------+|
|| || ||MMonGetReplicaDaemonMap(CEPH_MSG_MON_GET_REPL||
|| replicas; || ||ICADAEMONMAP): ||
|| replica_size; || || ||
|+---------------------------------+| ||ReqReplicaDaemonInfo; ||
|+---------------------------------+| |+---------------------------------------------++
|| ReplicaDaemonMap: || | +-------+|
|| || | |Message||
|| std::vector<ReplicaDaemonInfo>; || |+---------------------------------------------+|
|+---------------------------------+| ||MMonGetReplicaDaemonMap(CEPH_MSG_MON_GET_REPL||
| MetaData(need encode/decode) | ||ICADAEMONMAP): ||
| | || ||
| | ||ReqReplicaDaemonInfo; ||
| | |+---------------------------------------------+|
| | | |
| | | Three messages defined for the MetaData |
+-----------------------------------+ +-----------------------------------------------+
+--------+ +------------+
|Dispatch| |PaxosService|
+---------------------+ Update ReplicaDaemonInfo +---------------------------+
| ReplicaDaemon: | through | ReplicaMonitor: |
| | MReplicaDaemonBlink | |
| ReplicaDaemonInfo; -----------------------------------> ReplicaDaemonMap; |
| | | |
| ms_dispatch; | | //Need implement some APIs|
+---------------------+ +------^-------------|------+
Request ReplicaDaemonMap Feedback ReplicaDaemonMap
through | |through
MMonGetReplicaDaemonMap MReplicaDaemonMap
+------|-------------v------+
| librbd |
+---------------------------+
@changchengx
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@dillaman @liewegas
Please help review

@changchengx
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PR: ceph/ceph#37931

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