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Support MinIO to be deployed on more than 32 nodes (#8492)

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This PR implements locking from a global entity into
a more localized set level entity, allowing for locks
to be held only on the resources which are writing
to a collection of disks rather than a global level.

In this process this PR also removes the top-level
limit of 32 nodes to an unlimited number of nodes. This
is a precursor change before bring in bucket expansion.
This commit is contained in:
Harshavardhana
2019-11-13 12:17:45 -08:00
committed by kannappanr
parent 069b8ee8ff
commit e9b2bf00ad
58 changed files with 2312 additions and 838 deletions
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8
cmd/peer-rest-server.go
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@@ -148,8 +148,12 @@ func (s *peerRESTServer) GetLocksHandler(w http.ResponseWriter, r *http.Request)
}
ctx := newContext(r, w, "GetLocks")
locks := globalLockServer.ll.DupLockMap()
logger.LogIf(ctx, gob.NewEncoder(w).Encode(locks))
var llockers []map[string][]lockRequesterInfo
for _, llocker := range globalLockServers {
llockers = append(llockers, llocker.DupLockMap())
}
logger.LogIf(ctx, gob.NewEncoder(w).Encode(llockers))
w.(http.Flusher).Flush()