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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "bucket_space_distribution_context.h"
#include <vespa/vdslib/distribution/distribution.h>
#include <vespa/vdslib/state/clusterstate.h>
namespace storage::distributor {
BucketSpaceDistributionContext::~BucketSpaceDistributionContext() = default;
BucketSpaceDistributionContext::BucketSpaceDistributionContext(
std::shared_ptr<const lib::ClusterState> active_cluster_state,
std::shared_ptr<const lib::ClusterState> default_active_cluster_state,
std::shared_ptr<const lib::ClusterState> pending_cluster_state,
std::shared_ptr<const lib::Distribution> distribution,
uint16_t this_node_index) noexcept
: _active_cluster_state(std::move(active_cluster_state)),
_default_active_cluster_state(std::move(default_active_cluster_state)),
_pending_cluster_state(std::move(pending_cluster_state)),
_distribution(std::move(distribution)),
_this_node_index(this_node_index)
{}
std::shared_ptr<BucketSpaceDistributionContext> BucketSpaceDistributionContext::make_state_transition(
std::shared_ptr<const lib::ClusterState> active_cluster_state,
std::shared_ptr<const lib::ClusterState> default_active_cluster_state,
std::shared_ptr<const lib::ClusterState> pending_cluster_state,
std::shared_ptr<const lib::Distribution> distribution,
uint16_t this_node_index)
{
return std::make_shared<BucketSpaceDistributionContext>(
std::move(active_cluster_state), std::move(default_active_cluster_state),
std::move(pending_cluster_state), std::move(distribution),
this_node_index);
}
std::shared_ptr<BucketSpaceDistributionContext> BucketSpaceDistributionContext::make_stable_state(
std::shared_ptr<const lib::ClusterState> active_cluster_state,
std::shared_ptr<const lib::ClusterState> default_active_cluster_state,
std::shared_ptr<const lib::Distribution> distribution,
uint16_t this_node_index)
{
return std::make_shared<BucketSpaceDistributionContext>(
std::move(active_cluster_state), std::move(default_active_cluster_state),
std::shared_ptr<const lib::ClusterState>(),
std::move(distribution), this_node_index);
}
std::shared_ptr<BucketSpaceDistributionContext>
BucketSpaceDistributionContext::make_not_yet_initialized(uint16_t this_node_index)
{
return std::make_shared<BucketSpaceDistributionContext>(
std::make_shared<const lib::ClusterState>(),
std::make_shared<const lib::ClusterState>(),
std::shared_ptr<const lib::ClusterState>(),
std::make_shared<const lib::Distribution>(),
this_node_index);
}
bool BucketSpaceDistributionContext::bucket_owned_in_state(const lib::ClusterState& state,
const document::BucketId& id) const
{
try {
uint16_t owner_idx = _distribution->getIdealDistributorNode(state, id);
return (owner_idx == _this_node_index);
} catch (lib::TooFewBucketBitsInUseException&) {
return false;
} catch (lib::NoDistributorsAvailableException&) {
return false;
}
}
bool BucketSpaceDistributionContext::bucket_owned_in_active_state(const document::BucketId& id) const {
return bucket_owned_in_state(*_active_cluster_state, id);
}
bool BucketSpaceDistributionContext::bucket_owned_in_pending_state(const document::BucketId& id) const {
if (_pending_cluster_state) {
return bucket_owned_in_state(*_pending_cluster_state, id);
}
return true; // No pending state, owned by default.
}
}
|
