blob: 18dc3c93cd824195ecdc290f9227999b95c68f8e (
plain) (
blame)
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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/stllike/string.h>
#include <map>
#include <ostream>
#include <unordered_map>
namespace storage::distributor {
/**
* Statistics for a single bucket space on a content node.
*/
class BucketSpaceStats {
private:
bool _valid;
size_t _bucketsTotal;
size_t _bucketsPending;
public:
constexpr BucketSpaceStats(size_t bucketsTotal_, size_t bucketsPending_) noexcept
: _valid(true),
_bucketsTotal(bucketsTotal_),
_bucketsPending(bucketsPending_)
{}
constexpr BucketSpaceStats() noexcept
: _valid(false),
_bucketsTotal(0),
_bucketsPending(0)
{}
static constexpr BucketSpaceStats make_invalid() noexcept { return {}; }
[[nodiscard]] bool valid() const noexcept { return _valid; }
size_t bucketsTotal() const noexcept { return _bucketsTotal; }
size_t bucketsPending() const noexcept { return _bucketsPending; }
bool operator==(const BucketSpaceStats& rhs) const noexcept {
return (_valid == rhs._valid) &&
(_bucketsTotal == rhs._bucketsTotal) &&
(_bucketsPending == rhs._bucketsPending);
}
void merge(const BucketSpaceStats& rhs) noexcept {
_valid = _valid && rhs._valid;
_bucketsTotal += rhs._bucketsTotal;
_bucketsPending += rhs._bucketsPending;
}
};
std::ostream& operator<<(std::ostream& out, const BucketSpaceStats& stats);
/**
* Interface that provides snapshots of bucket spaces statistics per content node.
*/
class BucketSpacesStatsProvider {
public:
// Mapping from bucket space name to statistics for that bucket space.
using BucketSpacesStats = std::map<vespalib::string, BucketSpaceStats>;
// Mapping from content node index to statistics for all bucket spaces on that node.
using PerNodeBucketSpacesStats = std::unordered_map<uint16_t, BucketSpacesStats>;
virtual ~BucketSpacesStatsProvider() {}
virtual PerNodeBucketSpacesStats getBucketSpacesStats() const = 0;
};
void merge_bucket_spaces_stats(BucketSpacesStatsProvider::BucketSpacesStats& dest,
const BucketSpacesStatsProvider::BucketSpacesStats& src);
void merge_per_node_bucket_spaces_stats(BucketSpacesStatsProvider::PerNodeBucketSpacesStats& dest,
const BucketSpacesStatsProvider::PerNodeBucketSpacesStats& src);
}
|
