1version: 1
2style: integration
3description: threads blocked by maxConnecting check out returned connections
4runOn:
5 -
6 # required for blockConnection in fail point
7 minServerVersion: "4.4.0"
8failPoint:
9 configureFailPoint: failCommand
10 # high amount to ensure not interfered with by monitor checks.
11 mode: { times: 50 }
12 data:
13 failCommands: ["isMaster","hello"]
14 closeConnection: false
15 blockConnection: true
16 blockTimeMS: 750
17poolOptions:
18 maxPoolSize: 10
19 waitQueueTimeoutMS: 5000
20operations:
21 - name: ready
22 # check out a connection and hold on to it.
23 - name: checkOut
24 label: conn0
25 # then start three threads that all attempt to check out. Two threads
26 # will fill maxConnecting, and the other should be waiting either for
27 # the other two to finish or for the main thread to check its connection
28 # back in.
29 - name: start
30 target: thread1
31 - name: checkOut
32 thread: thread1
33 - name: start
34 target: thread2
35 - name: checkOut
36 thread: thread2
37 - name: start
38 target: thread3
39 - name: checkOut
40 thread: thread3
41 # wait for all three to start checking out and a little longer
42 # for the establishments to begin.
43 - name: waitForEvent
44 event: ConnectionCheckOutStarted
45 count: 4
46 - name: wait
47 ms: 100
48 # check original connection back in, so the thread that isn't
49 # currently establishing will become unblocked. Then wait for
50 # all threads to complete.
51 - name: checkIn
52 connection: conn0
53 - name: waitForEvent
54 event: ConnectionCheckedOut
55 count: 4
56events:
57 # main thread checking out a Connection and holding it
58 - type: ConnectionCreated
59 address: 42
60 connectionId: 1
61 - type: ConnectionCheckedOut
62 address: 42
63 # two threads creating their Connections
64 - type: ConnectionCreated
65 address: 42
66 - type: ConnectionCreated
67 address: 42
68 # main thread checking its Connection back in
69 - type: ConnectionCheckedIn
70 connectionId: 1
71 address: 42
72 # remaining thread checking out the returned Connection
73 - type: ConnectionCheckedOut
74 connectionId: 1
75 address: 42
76 # first two threads finishing Connection establishment
77 - type: ConnectionCheckedOut
78 address: 42
79 - type: ConnectionCheckedOut
80 address: 42
81ignore:
82 - ConnectionPoolReady
83 - ConnectionClosed
84 - ConnectionReady
85 - ConnectionPoolCreated
86 - ConnectionCheckOutStarted
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