[VOL-2235] Mocks and interfaces for rw-core
This update consists of mocks that are used by the rw-core
during unit testing. It also includes interfaces used for unit
tests.
Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/go.etcd.io/etcd/mvcc/backend/metrics.go b/vendor/go.etcd.io/etcd/mvcc/backend/metrics.go
new file mode 100644
index 0000000..d9641af
--- /dev/null
+++ b/vendor/go.etcd.io/etcd/mvcc/backend/metrics.go
@@ -0,0 +1,95 @@
+// Copyright 2016 The etcd Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package backend
+
+import "github.com/prometheus/client_golang/prometheus"
+
+var (
+ commitSec = prometheus.NewHistogram(prometheus.HistogramOpts{
+ Namespace: "etcd",
+ Subsystem: "disk",
+ Name: "backend_commit_duration_seconds",
+ Help: "The latency distributions of commit called by backend.",
+
+ // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2
+ // highest bucket start of 0.001 sec * 2^13 == 8.192 sec
+ Buckets: prometheus.ExponentialBuckets(0.001, 2, 14),
+ })
+
+ rebalanceSec = prometheus.NewHistogram(prometheus.HistogramOpts{
+ Namespace: "etcd_debugging",
+ Subsystem: "disk",
+ Name: "backend_commit_rebalance_duration_seconds",
+ Help: "The latency distributions of commit.rebalance called by bboltdb backend.",
+
+ // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2
+ // highest bucket start of 0.001 sec * 2^13 == 8.192 sec
+ Buckets: prometheus.ExponentialBuckets(0.001, 2, 14),
+ })
+
+ spillSec = prometheus.NewHistogram(prometheus.HistogramOpts{
+ Namespace: "etcd_debugging",
+ Subsystem: "disk",
+ Name: "backend_commit_spill_duration_seconds",
+ Help: "The latency distributions of commit.spill called by bboltdb backend.",
+
+ // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2
+ // highest bucket start of 0.001 sec * 2^13 == 8.192 sec
+ Buckets: prometheus.ExponentialBuckets(0.001, 2, 14),
+ })
+
+ writeSec = prometheus.NewHistogram(prometheus.HistogramOpts{
+ Namespace: "etcd_debugging",
+ Subsystem: "disk",
+ Name: "backend_commit_write_duration_seconds",
+ Help: "The latency distributions of commit.write called by bboltdb backend.",
+
+ // lowest bucket start of upper bound 0.001 sec (1 ms) with factor 2
+ // highest bucket start of 0.001 sec * 2^13 == 8.192 sec
+ Buckets: prometheus.ExponentialBuckets(0.001, 2, 14),
+ })
+
+ defragSec = prometheus.NewHistogram(prometheus.HistogramOpts{
+ Namespace: "etcd",
+ Subsystem: "disk",
+ Name: "backend_defrag_duration_seconds",
+ Help: "The latency distribution of backend defragmentation.",
+
+ // 100 MB usually takes 1 sec, so start with 10 MB of 100 ms
+ // lowest bucket start of upper bound 0.1 sec (100 ms) with factor 2
+ // highest bucket start of 0.1 sec * 2^12 == 409.6 sec
+ Buckets: prometheus.ExponentialBuckets(.1, 2, 13),
+ })
+
+ snapshotTransferSec = prometheus.NewHistogram(prometheus.HistogramOpts{
+ Namespace: "etcd",
+ Subsystem: "disk",
+ Name: "backend_snapshot_duration_seconds",
+ Help: "The latency distribution of backend snapshots.",
+
+ // lowest bucket start of upper bound 0.01 sec (10 ms) with factor 2
+ // highest bucket start of 0.01 sec * 2^16 == 655.36 sec
+ Buckets: prometheus.ExponentialBuckets(.01, 2, 17),
+ })
+)
+
+func init() {
+ prometheus.MustRegister(commitSec)
+ prometheus.MustRegister(rebalanceSec)
+ prometheus.MustRegister(spillSec)
+ prometheus.MustRegister(writeSec)
+ prometheus.MustRegister(defragSec)
+ prometheus.MustRegister(snapshotTransferSec)
+}