Mirrored queues for redundancy in RabbitMQ - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a mirrored queue in RabbitMQ using policy.

RabbitMQ

rabbitmqctl set_policy [1] ".*" '{"ha-mode":"all"}'

Drag options to blanks, or click blank then click option'

Aall_mirrors

Bqueue_mirror

Cha-all

Dmirror_all

Attempts:

3 left

💡 Hint

Common Mistakes

Using an invalid or empty policy name

Confusing the policy name with the pattern

The policy name can be any identifier. Here, mirror_all is used as the policy name to apply mirroring to all queues.

2fill in blank

medium

Complete the code to set the ha-mode to mirror all queues.

RabbitMQ

rabbitmqctl set_policy mirror_all ".*" '{"ha-mode":"[1]"}'

Drag options to blanks, or click blank then click option'

Aall

Bnodes

Cexactly

Dnodes_exactly

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'nodes' or 'exactly' when wanting full mirroring

Misspelling the ha-mode value

The ha-mode value all means the queue is mirrored on all nodes in the cluster.

3fill in blank

hard

Fix the error in the command to apply the mirroring policy correctly.

RabbitMQ

rabbitmqctl set_policy mirror_all ".*" '{"ha-mode": [1]'

Drag options to blanks, or click blank then click option'

A"all"

B'all'

Call

Dall"

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting quotes around 'all'

Using single quotes inside JSON incorrectly

The value for ha-mode must be a string enclosed in double quotes inside the JSON string.

4fill in blank

hard

Fill both blanks to declare a mirrored queue named 'task_queue' with ha-mode 'all'.

RabbitMQ

rabbitmqadmin declare queue name=[1] durable=true arguments='{"[2]":"all"}'

Drag options to blanks, or click blank then click option'

Atask_queue

Bha-mode

Cha-params

Ddurable

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong argument keys like 'ha-params'

Misspelling the queue name

The queue name is task_queue. The argument key to set mirroring mode is ha-mode.

5fill in blank

hard

Fill all three blanks to create a policy named 'mirror_policy' that matches queues starting with 'task' and sets ha-mode to 'all'.

RabbitMQ

rabbitmqctl set_policy [1] "[2]" '{"[3]":"all"}'

Drag options to blanks, or click blank then click option'

Amirror_policy

B^task.*

Cha-mode

Dtask_queue

Attempts:

3 left

💡 Hint

Common Mistakes

Using queue name instead of pattern

Wrong argument key for ha-mode

The policy name is mirror_policy. The pattern to match queues starting with 'task' is ^task.*. The argument key is ha-mode.