Adv Spark Programming - Key Performance Considerations - Parallelism

1 Adv Spark Programming - Understanding Persistence

2 Spark Programming - RDD caching is used for avoiding re-computation of an RDD:...

3 Spark Programming - With persistence we can replicate the RDD so that spark...

4 Spark Programming - RDD cachng is basically persisting an RDD into the RAM?...

5 Adv Spark Programming - Persistence StorageLevel

6 Spark Programming - The persist() method accepts an argument which is an object...

7 Spark Programming - Say, you are creating an RDD rdd1 after a lot...

8 Spark Programming - Which of the following is not true for MEMORY_AND_DISK_2 storage...

9 Spark Programming - StorageLevel does not specify the following configuration?...

10 Adv Spark Programming - Data Partitioning

11 Adv Spark Programming - Partitioning HandsOn

12 Adv Spark Programming - Data Partitioning Example

13 Spark Programming - Apache Spark's Data partitioning in RDD is useful if...

14 Spark Programming - Which of the following is not true about Data partitioning?...

15 Spark Programming - Which of the following is not an example of default...

16 Spark Programming - We had a key-value RDD having 1 to 10 as...

17 Spark Programming - We had a key-value RDD having 1 to 10 as...

18 Spark Programming - Operations that can not benefit from Partitioning?...

19 Adv Spark Programming - Custom Partitioner

20 Spark Programming - You can create own partitioner?...

21 Adv Spark Programming - Shared Variables

22 Spark Programming - When we pass a function say f to map or...

23 Spark Programming - If we have some data, which of the following is...

24 Spark Programming - If we have some data of few kilobyte size, which...

25 Adv Spark Programming - Accumulators

26 Spark Programming - Accumulators are used for...

27 Spark Programming - Accumulators will give incorrect results in the cases where:...

28 Spark Programming - Which of the use-case is not right for accumulator:...

29 Adv Spark Programming - Custom Accumulators

30 Adv Spark Programming - Broadcast Variables

31 Spark Programming - Broadcast variables are used because...

32 Spark Programming - To share few bytes data with workers we use:...

33 Adv Spark Programming - Broadcast Variables Example

34 Adv Spark Programming - Key Performance Considerations - Parallelism

35 Spark Programming - If you have an RDD with 1000 records. The function...

36 Adv Spark Programming - Key Performance Considerations - Partitions

37 Spark Programming - If we have a text file of 8GB in HDFS...

38 Spark Programming - If we have 1GB data as an array and we...

39 Spark Programming - Which of the following is not right way of controlling...

40 Adv Spark Programming - Serialization Format

41 Spark Programming - Serialization happens when...

42 Spark Programming - Performance of serializer is important because in Spark the serialization...

43 Spark Programming - Which serializer is slowest?...

44 Adv Spark Programming - Memory Management

45 Spark Programming - How much memory is consumed for loading an RDD?...

46 Spark Programming - Spark reserves 20% of memory to shuffle and agregation buffers....

47 Spark Programming - Spark reserves last 20% of memory to code. What does...

48 Adv Spark Programming - Hardware Provisioning

49 Spark Programming - Which of the following hardware parameters do not matter for...

50 Spark Programming - Spark is able to achieve linear scaling. What does it...

51 Spark Programming - Why the memory beyond 64GB is discouraged?...

52 Adv Spark Programming - Slides