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b0e1d4ce78
inconsistent drive healing when one of the drive is offline while a new drive was replaced, this change is to ensure that we can add the offline drive back into the mix by healing it again.
73 lines
2.4 KiB
Go
73 lines
2.4 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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package cmd
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import (
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"context"
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"net/http"
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"strconv"
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)
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// ClusterCheckHandler returns if the server is ready for requests.
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func ClusterCheckHandler(w http.ResponseWriter, r *http.Request) {
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ctx := newContext(r, w, "ClusterCheckHandler")
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objLayer := newObjectLayerFn()
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// Service not initialized yet
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if objLayer == nil {
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writeResponse(w, http.StatusServiceUnavailable, nil, mimeNone)
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return
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}
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ctx, cancel := context.WithTimeout(ctx, globalAPIConfig.getReadyDeadline())
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defer cancel()
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opts := HealthOptions{Maintenance: r.URL.Query().Get("maintenance") == "true"}
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result := objLayer.Health(ctx, opts)
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if result.WriteQuorum > 0 {
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w.Header().Set("X-Minio-Write-Quorum", strconv.Itoa(result.WriteQuorum))
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}
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if !result.Healthy {
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// return how many drives are being healed if any
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if result.HealingDrives > 0 {
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w.Header().Set("X-Minio-Healing-Drives", strconv.Itoa(result.HealingDrives))
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}
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// As a maintenance call we are purposefully asked to be taken
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// down, this is for orchestrators to know if we can safely
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// take this server down, return appropriate error.
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if opts.Maintenance {
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writeResponse(w, http.StatusPreconditionFailed, nil, mimeNone)
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} else {
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writeResponse(w, http.StatusServiceUnavailable, nil, mimeNone)
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}
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return
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}
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writeResponse(w, http.StatusOK, nil, mimeNone)
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}
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// ReadinessCheckHandler Checks if the process is up. Always returns success.
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func ReadinessCheckHandler(w http.ResponseWriter, r *http.Request) {
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// TODO: only implement this function to notify that this pod is
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// busy, at a local scope in future, for now '200 OK'.
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writeResponse(w, http.StatusOK, nil, mimeNone)
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}
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// LivenessCheckHandler - Checks if the process is up. Always returns success.
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func LivenessCheckHandler(w http.ResponseWriter, r *http.Request) {
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writeResponse(w, http.StatusOK, nil, mimeNone)
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}
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