Batching and linger configuration in Kafka - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the linger time to 100 milliseconds.

Kafka

props.put("linger.ms", [1]);

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

A"10"

B"1000"

C"0"

D"100"

Attempts:

3 left

💡 Hint

Common Mistakes

Using 1000 instead of 100 causes longer delay.

Setting linger.ms to 0 disables batching delay.

The linger.ms property controls how long the producer waits before sending a batch. Setting it to 100 means 100 milliseconds.

2fill in blank

medium

Complete the code to set the batch size to 32 KB.

Kafka

props.put("batch.size", [1]);

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

A"32768"

B"16384"

C"65536"

D"8192"

Attempts:

3 left

💡 Hint

Common Mistakes

Using 16384 sets batch size to 16 KB instead of 32 KB.

Confusing batch size units with linger.ms units.

The batch.size property is in bytes. 32 KB equals 32768 bytes.

3fill in blank

hard

Fix the error in setting linger.ms to 1000 (1 second) in the code.

Kafka

props.put("linger.ms", [1]);

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

A1000

B"1000"

C1

D100

Attempts:

3 left

💡 Hint

Common Mistakes

Using integer 1000 instead of string "1000".

Using 1 instead of 1000 changes the linger time.

Kafka configuration properties expect string values, so "1000" is correct.

4fill in blank

hard

Fill both blanks to configure batch size to 16 KB and linger time to 50 ms.

Kafka

props.put("batch.size", [1]);
props.put("linger.ms", [2]);

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

A"16384"

B"50"

C"100"

D"32768"

Attempts:

3 left

💡 Hint

Common Mistakes

Using integer values instead of strings.

Mixing up batch size and linger.ms values.

Batch size 16 KB is 16384 bytes, and linger.ms 50 means 50 milliseconds.

5fill in blank

hard

Fill all three blanks to configure batch size 64 KB, linger time 200 ms, and enable compression with 'snappy'.

Kafka

props.put("batch.size", [1]);
props.put("linger.ms", [2]);
props.put("compression.type", [3]);

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

A"65536"

B"200"

C"snappy"

D"gzip"

Attempts:

3 left

💡 Hint

Common Mistakes

Using integer values instead of strings.

Choosing wrong compression type like 'gzip' instead of 'snappy'.

Batch size 64 KB is 65536 bytes, linger.ms 200 means 200 milliseconds, and compression.type 'snappy' enables Snappy compression.