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1164fc60f3
This PR brings semver capabilities in our RPC layer to ensure that we can upgrade the servers in rolling fashion while keeping I/O in progress. This is only a framework change the functionality remains the same as such and we do not have any special API changes for now. But in future when we bring in API changes we will be able to upgrade servers without a downtime. Additional change in this PR is to not abort when serverVersions mismatch in a distributed cluster, instead wait for the quorum treat the situation as if the server is down. This allows for administrator to properly upgrade all the servers in the cluster. Fixes #5393
57 lines
1.8 KiB
Go
57 lines
1.8 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, semVersion 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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package cmd
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import "testing"
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// Tests version comparator.
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func TestCompare(t *testing.T) {
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type compareTest struct {
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v1 semVersion
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v2 semVersion
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result int
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}
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var compareTests = []compareTest{
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{semVersion{1, 0, 0}, semVersion{1, 0, 0}, 0},
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{semVersion{2, 0, 0}, semVersion{1, 0, 0}, 1},
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{semVersion{0, 1, 0}, semVersion{0, 1, 0}, 0},
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{semVersion{0, 2, 0}, semVersion{0, 1, 0}, 1},
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{semVersion{0, 0, 1}, semVersion{0, 0, 1}, 0},
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{semVersion{0, 0, 2}, semVersion{0, 0, 1}, 1},
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{semVersion{1, 2, 3}, semVersion{1, 2, 3}, 0},
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{semVersion{2, 2, 4}, semVersion{1, 2, 4}, 1},
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{semVersion{1, 3, 3}, semVersion{1, 2, 3}, 1},
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{semVersion{1, 2, 4}, semVersion{1, 2, 3}, 1},
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// Spec Examples #11
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{semVersion{1, 0, 0}, semVersion{2, 0, 0}, -1},
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{semVersion{2, 0, 0}, semVersion{2, 1, 0}, -1},
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{semVersion{2, 1, 0}, semVersion{2, 1, 1}, -1},
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}
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for _, test := range compareTests {
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if res := test.v1.Compare(test.v2); res != test.result {
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t.Errorf("Comparing %q : %q, expected %d but got %d", test.v1, test.v2, test.result, res)
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}
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// Test if reverse is true as well.
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if res := test.v2.Compare(test.v1); res != -test.result {
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t.Errorf("Comparing %q : %q, expected %d but got %d", test.v2, test.v1, -test.result, res)
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}
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}
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}
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