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https://github.com/prometheus/prometheus.git
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b224251981
This commit simplifies the way that compactions across a database's keyspace occur due to reading the LevelDB internals. Secondarily it introduces the database size estimation mechanisms. Include database health and help interfaces. Add database statistics; remove status goroutines. This commit kills the use of Go routines to expose status throughout the web components of Prometheus. It also dumps raw LevelDB status on a separate /databases endpoint.
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
// Copyright 2013 Prometheus Team
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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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package web
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import (
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"github.com/prometheus/prometheus/storage/raw/leveldb"
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"net/http"
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"sync"
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)
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type DatabasesHandler struct {
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States []leveldb.DatabaseState
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Incoming chan []leveldb.DatabaseState
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mutex sync.RWMutex
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}
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func (h *DatabasesHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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select {
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case states := <-h.Incoming:
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h.mutex.Lock()
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defer h.mutex.Unlock()
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h.States = states
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default:
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h.mutex.RLock()
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defer h.mutex.RUnlock()
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}
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executeTemplate(w, "databases", h)
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}
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