blob: eca118a4ff2b1c4e164ba0ec2e4829944b3bab2d (
plain)
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
92
93
94
95
96
|
# frozen_string_literal: true
module Gitlab
module Database
module Reindexing
class Coordinator
include IndexingExclusiveLeaseGuard
# Maximum lease time for the global Redis lease
# This should be higher than the maximum time for any
# long running step in the reindexing process (compare with
# statement timeouts).
TIMEOUT_PER_ACTION = 1.day
attr_reader :index, :notifier
def initialize(index, notifier = GrafanaNotifier.new)
@index = index
@notifier = notifier
end
def perform
return if too_late_for_reindexing?
# This obtains a global lease such that there's
# only one live reindexing process at a time.
try_obtain_lease do
action = ReindexAction.create_for(index)
with_notifications(action) do
perform_for(index, action)
end
end
end
def drop
return if too_late_for_reindexing?
try_obtain_lease do
Gitlab::AppLogger.info("Removing index #{index.identifier} which is a leftover, temporary index from previous reindexing activity")
retries = Gitlab::Database::WithLockRetriesOutsideTransaction.new(
connection: connection,
timing_configuration: REMOVE_INDEX_RETRY_CONFIG,
klass: self.class,
logger: Gitlab::AppLogger
)
retries.run(raise_on_exhaustion: false) do
connection.execute("DROP INDEX CONCURRENTLY IF EXISTS #{full_index_name}")
end
end
end
private
delegate :connection, to: :index
def with_notifications(action)
notifier.notify_start(action)
yield
ensure
notifier.notify_end(action)
end
def perform_for(index, action)
ReindexConcurrently.new(index).perform
rescue StandardError
action.state = :failed
raise
ensure
action.finish
end
def lease_timeout
TIMEOUT_PER_ACTION
end
def full_index_name
[
connection.quote_table_name(index.schema),
connection.quote_table_name(index.name)
].join('.')
end
# We need to check the time explicitly because we execute 4 reindexing
# action per rake invocation and one action can take up to 24 hours.
# This means that it can span for more than the weekend.
def too_late_for_reindexing?
!Time.current.on_weekend?
end
end
end
end
end
|
