1version: 1
2style: integration
3description: maxConnecting is enforced
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 # start 3 threads
23 - name: start
24 target: thread1
25 - name: start
26 target: thread2
27 - name: start
28 target: thread3
29 # start creating a Connection. This will take a while
30 # due to the fail point.
31 - name: checkOut
32 thread: thread1
33 # wait for thread1 to actually start creating a Connection
34 - name: waitForEvent
35 event: ConnectionCreated
36 count: 1
37 # wait some more time to ensure thread1 has begun establishing a Connection
38 - name: wait
39 ms: 100
40 # start 2 check out requests. Only one thread should
41 # start creating a Connection and the other one should be
42 # waiting for pendingConnectionCount to be less than maxConnecting,
43 # only starting once thread1 finishes creating its Connection.
44 - name: checkOut
45 thread: thread2
46 - name: checkOut
47 thread: thread3
48 # wait until all Connections have been created.
49 - name: waitForEvent
50 event: ConnectionReady
51 count: 3
52events:
53 # thread1 creates its connection
54 - type: ConnectionCreated
55 address: 42
56 connectionId: 1
57 # either thread2 or thread3 creates its connection
58 # the other thread is stuck waiting for maxConnecting to come down
59 - type: ConnectionCreated
60 address: 42
61 # thread1 finishes establishing its connection, freeing
62 # up the blocked thread to start establishing
63 - type: ConnectionReady
64 address: 42
65 connectionId: 1
66 - type: ConnectionCreated
67 address: 42
68 # the remaining two Connections finish establishing
69 - type: ConnectionReady
70 address: 42
71 - type: ConnectionReady
72 address: 42
73ignore:
74 - ConnectionCheckOutStarted
75 - ConnectionCheckedIn
76 - ConnectionCheckedOut
77 - ConnectionClosed
78 - ConnectionPoolCreated
79 - ConnectionPoolReady
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