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---
description: pool-cleared-error
schemaVersion: "1.10"
runOnRequirements:
# This test requires retryable writes, failCommand appName, and
# failCommand blockConnection with closeConnection:true (SERVER-53512).
- minServerVersion: "4.9"
serverless: forbid
topologies:
- replicaset
- sharded
createEntities:
- client:
id: &setupClient setupClient
useMultipleMongoses: false
initialData: &initialData
- collectionName: &collectionName pool-cleared-error
databaseName: &databaseName sdam-tests
documents: []
tests:
- description: PoolClearedError does not mark server unknown
operations:
- name: createEntities
object: testRunner
arguments:
entities:
- client:
id: &client client
useMultipleMongoses: false
observeEvents:
- serverDescriptionChangedEvent
- poolClearedEvent
uriOptions:
retryWrites: true
maxPoolSize: 1
appname: poolClearedErrorTest
- database:
id: &database database
client: *client
databaseName: *databaseName
- collection:
id: &collection collection
database: *database
collectionName: *collectionName
# Perform an operation to ensure the node is discovered.
- name: insertOne
object: *collection
arguments:
document:
_id: 1
# Configure the next insert to fail with a network error which will
# clear the pool leaving it paused until the server is rediscovered.
- name: failPoint
object: testRunner
arguments:
failPoint:
configureFailPoint: failCommand
mode:
times: 1
data:
failCommands:
- insert
blockConnection: true
blockTimeMS: 100
closeConnection: true
appName: poolClearedErrorTest
client: *setupClient
# Start threads.
- name: createEntities
object: testRunner
arguments:
entities:
- thread:
id: &thread0 thread0
- thread:
id: &thread1 thread1
- thread:
id: &thread2 thread2
- thread:
id: &thread3 thread3
- thread:
id: &thread4 thread4
- thread:
id: &thread5 thread5
# Perform concurrent insert operations. The first one to execute will
# fail with a network error, mark the server Unknown, clear the pool,
# and retry.
# The other operations will either:
# - Notice the pool is paused, fail with a PoolClearedError, and retry.
# - Or block waiting in server selection until the server is
# rediscovered.
#
# Note that this test does not guarantee that a PoolClearedError will be
# raised but it is likely since the initial insert is delayed.
- name: runOnThread
object: testRunner
arguments:
thread: *thread0
operation:
name: insertOne
object: *collection
arguments:
document:
_id: 2
- name: runOnThread
object: testRunner
arguments:
thread: *thread1
operation:
name: insertOne
object: *collection
arguments:
document:
_id: 3
- name: runOnThread
object: testRunner
arguments:
thread: *thread2
operation:
name: insertOne
object: *collection
arguments:
document:
_id: 4
- name: runOnThread
object: testRunner
arguments:
thread: *thread3
operation:
name: insertOne
object: *collection
arguments:
document:
_id: 5
- name: runOnThread
object: testRunner
arguments:
thread: *thread4
operation:
name: insertOne
object: *collection
arguments:
document:
_id: 6
- name: runOnThread
object: testRunner
arguments:
thread: *thread5
operation:
name: insertOne
object: *collection
arguments:
document:
_id: 7
# Stop threads.
- name: waitForThread
object: testRunner
arguments:
thread: *thread0
- name: waitForThread
object: testRunner
arguments:
thread: *thread1
- name: waitForThread
object: testRunner
arguments:
thread: *thread2
- name: waitForThread
object: testRunner
arguments:
thread: *thread3
- name: waitForThread
object: testRunner
arguments:
thread: *thread4
- name: waitForThread
object: testRunner
arguments:
thread: *thread5
# The first shutdown error should mark the server Unknown and then clear
# the pool.
- name: waitForEvent
object: testRunner
arguments:
client: *client
event:
serverDescriptionChangedEvent:
newDescription:
type: Unknown
count: 1
- name: waitForEvent
object: testRunner
arguments:
client: *client
event:
poolClearedEvent: {}
count: 1
# Perform an operation to ensure the node still useable.
- name: insertOne
object: *collection
arguments:
document:
_id: 8
# Assert the server was marked Unknown and pool was cleared exactly once.
- name: assertEventCount
object: testRunner
arguments:
client: *client
event:
serverDescriptionChangedEvent:
newDescription:
type: Unknown
count: 1
- name: assertEventCount
object: testRunner
arguments:
client: *client
event:
poolClearedEvent: {}
count: 1
# Order of operations is non-deterministic so we cannot check events.
outcome:
- collectionName: *collectionName
databaseName: *databaseName
documents:
- _id: 1
- _id: 2
- _id: 3
- _id: 4
- _id: 5
- _id: 6
- _id: 7
- _id: 8
|
