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2e0fd2cba9
- optimize writing part.N.meta by writing both part.N
and its meta in sequence without network component.
- remove part.N.meta, part.N which were partially success
ful, in quorum loss situations during renamePart()
- allow for strict read quorum check arbitrated via ETag
for the given part number, this makes it double safer
upon final commit.
- return an appropriate error when read quorum is missing,
instead of returning InvalidPart{}, which is non-retryable
error. This kind of situation can happen when many
nodes are going offline in rotation, an example of such
a restart() behavior is statefulset updates in k8s.
fixes #20091
86 lines
2.3 KiB
Go
86 lines
2.3 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
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//
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// This file is part of MinIO Object Storage stack
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package cmd
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import (
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"context"
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"math/rand"
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"sync"
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"time"
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)
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func (er erasureObjects) getOnlineDisks() (newDisks []StorageAPI) {
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disks := er.getDisks()
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var wg sync.WaitGroup
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var mu sync.Mutex
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for _, i := range r.Perm(len(disks)) {
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i := i
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wg.Add(1)
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go func() {
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defer wg.Done()
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if disks[i] == nil {
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return
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}
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di, err := disks[i].DiskInfo(context.Background(), DiskInfoOptions{})
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if err != nil || di.Healing {
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// - Do not consume disks which are not reachable
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// unformatted or simply not accessible for some reason.
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//
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// - Do not consume disks which are being healed
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//
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// - Future: skip busy disks
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return
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}
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mu.Lock()
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newDisks = append(newDisks, disks[i])
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mu.Unlock()
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}()
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}
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wg.Wait()
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return newDisks
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}
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func (er erasureObjects) getOnlineLocalDisks() (newDisks []StorageAPI) {
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disks := er.getOnlineDisks()
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// Based on the random shuffling return back randomized disks.
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for _, i := range r.Perm(len(disks)) {
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if disks[i] != nil && disks[i].IsLocal() {
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newDisks = append(newDisks, disks[i])
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}
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}
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return newDisks
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}
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func (er erasureObjects) getLocalDisks() (newDisks []StorageAPI) {
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disks := er.getDisks()
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// Based on the random shuffling return back randomized disks.
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r := rand.New(rand.NewSource(time.Now().UnixNano()))
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for _, i := range r.Perm(len(disks)) {
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if disks[i] != nil && disks[i].IsLocal() {
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newDisks = append(newDisks, disks[i])
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}
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}
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return newDisks
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}
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