Sentinel configuration in Redis - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the name of the monitored master in the Sentinel configuration.

Redis

sentinel monitor [1] 127.0.0.1 6379 2

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

Amymaster

Bmaster1

Credis-master

Dprimary

Attempts:

3 left

💡 Hint

Common Mistakes

Using IP address instead of a name

Using a name with spaces

Omitting the master name

The sentinel monitor command requires the master name as the first argument. 'mymaster' is the default and commonly used name.

2fill in blank

medium

Complete the code to set the quorum for the Sentinel to 3.

Redis

sentinel set [1] quorum 3

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

Aredis-master

Bmaster1

Cprimary

Dmymaster

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong master name

Setting quorum without specifying master name

Confusing quorum number with master name

The quorum setting applies to the monitored master name. It tells Sentinel how many Sentinels must agree to failover.

3fill in blank

hard

Fix the error in the Sentinel configuration command to set the failover timeout to 15000 milliseconds.

Redis

sentinel set mymaster [1] 15000

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

Afailovertimeout

Bfailover_timeout

Cfailover-timeout

DfailoverTimeout

Attempts:

3 left

💡 Hint

Common Mistakes

Using underscores instead of hyphens

Using camelCase

Misspelling the option name

The correct option name is failover-timeout with a hyphen, as required by Redis Sentinel configuration syntax.

4fill in blank

hard

Fill both blanks to configure Sentinel to notify a script and set the client reconfiguration timeout.

Redis

sentinel set mymaster [1] /path/to/notify.sh
sentinel set mymaster [2] 10000

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

Anotification-script

Bclient-reconfig-script

Cclient-reconfig-timeout

Dnotification-timeout

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up script and timeout options

Using incorrect option names

Using underscores instead of hyphens

The notification-script option sets the script to run on events. The client-reconfig-timeout sets the timeout for client reconfiguration.

5fill in blank

hard

Fill all three blanks to configure Sentinel with master name, IP, port, and quorum.

Redis

sentinel monitor [1] [2] [3] 2

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

Amymaster

B192.168.1.100

C6379

Dlocalhost

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping IP and port positions

Using 'localhost' instead of IP address

Using wrong master name

The sentinel monitor command requires the master name, IP address, port, and quorum number. Here, 'mymaster' is the name, '192.168.1.100' is the IP, and '6379' is the port.