/usr/share/gocode/src/github.com/couchbase/moss/store_stats.go is in golang-github-couchbase-moss-dev 0.0~git20170914.0.07c86e8-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 | // Copyright (c) 2016 Couchbase, Inc.
// 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 moss
import (
"io/ioutil"
"github.com/couchbase/ghistogram"
)
// Stats returns a map of stats.
func (s *Store) Stats() (map[string]interface{}, error) {
finfos, err := ioutil.ReadDir(s.dir)
if err != nil {
return nil, err
}
var numBytesUsedDisk uint64
for _, finfo := range finfos {
if !finfo.IsDir() {
numBytesUsedDisk += uint64(finfo.Size())
}
}
s.m.Lock()
totPersists := s.totPersists
totCompactions := s.totCompactions
totCompactionsPartial := s.totCompactionsPartial
numLastCompactionBeforeBytes := s.numLastCompactionBeforeBytes
numLastCompactionAfterBytes := s.numLastCompactionAfterBytes
totCompactionDecreaseBytes := s.totCompactionDecreaseBytes
totCompactionIncreaseBytes := s.totCompactionIncreaseBytes
maxCompactionDecreaseBytes := s.maxCompactionDecreaseBytes
maxCompactionIncreaseBytes := s.maxCompactionIncreaseBytes
totCompactionBeforeBytes := s.totCompactionBeforeBytes
totCompactionWrittenBytes := s.totCompactionWrittenBytes
s.m.Unlock()
footer, err := s.snapshot()
if err != nil {
return nil, err
}
var numSegments uint64
if footer != nil {
footer.m.Lock()
if footer.ss != nil {
numSegments = uint64(len(footer.ss.a))
}
footer.m.Unlock()
}
footer.Close()
files, numFilesOpen := s.allFiles()
return map[string]interface{}{
"num_bytes_used_disk": numBytesUsedDisk,
"total_persists": totPersists,
"total_compactions": totCompactions,
"total_compactions_partial": totCompactionsPartial,
"total_compaction_before_bytes": totCompactionBeforeBytes,
"total_compaction_written_bytes": totCompactionWrittenBytes,
"num_segments": numSegments,
"num_last_compaction_before_bytes": numLastCompactionBeforeBytes,
"num_last_compaction_after_bytes": numLastCompactionAfterBytes,
"total_compaction_decrease_bytes": totCompactionDecreaseBytes,
"total_compaction_increase_bytes": totCompactionIncreaseBytes,
"max_compaction_decrease_bytes": maxCompactionDecreaseBytes,
"max_compaction_increase_bytes": maxCompactionIncreaseBytes,
"num_files": len(files),
"num_files_open": numFilesOpen,
"files": files,
}, nil
}
// Histograms returns a snapshot of the histograms for this store.
func (s *Store) Histograms() ghistogram.Histograms {
histogramsSnapshot := make(ghistogram.Histograms)
histogramsSnapshot.AddAll(s.histograms)
return histogramsSnapshot
}
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