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e9b2bf00ad
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.
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
/*
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* Minio Cloud Storage, (C) 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// GOMAXPROCS=10 go test
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package dsync
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import "testing"
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// Tests dsync.New
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func TestNew(t *testing.T) {
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nclnts := make([]NetLocker, 33)
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if _, err := New(nclnts); err == nil {
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t.Fatal("Should have failed")
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}
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nclnts = make([]NetLocker, 1)
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if _, err := New(nclnts); err == nil {
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t.Fatal("Should have failed")
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}
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nclnts = make([]NetLocker, 2)
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nds, err := New(nclnts)
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if err != nil {
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t.Fatal("Should pass", err)
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}
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if nds.dquorumReads != 1 {
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t.Fatalf("Unexpected read quorum values expected 1, got %d", nds.dquorumReads)
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}
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if nds.dquorum != 2 {
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t.Fatalf("Unexpected quorum values expected 2, got %d", nds.dquorum)
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}
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nclnts = make([]NetLocker, 3)
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nds, err = New(nclnts)
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if err != nil {
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t.Fatal("Should pass", err)
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}
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if nds.dquorumReads != nds.dquorum {
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t.Fatalf("Unexpected quorum values for odd nodes we expect read %d and write %d quorum to be same", nds.dquorumReads, nds.dquorum)
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}
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}
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