Post on 15-Apr-2017
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13 April 2016Ted Malaska| Principle Solutions Architect @ Cloudera, Pat Patterson| Community Champion @ StreamSets
Ingest and Stream Processing - What will you choose?
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About Ted and Pat
Ted Malaska• Principal Solutions Architect @ Cloudera• Apache HBase SparkOnHBase
Contributor•Contact• ted.malaska@cloudera.com• @TedMalaska
Pat Patterson•Community Champion @ StreamSets• Formerly Developer Evangelist at
Salesforce•Contact• pat@streamsets.com• @metadaddy
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Streaming Patterns
•Ingestion•Low Millisecond Actions•Near Real Time Complex Actions
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Parts Of Streaming
Producer Kafka Engine Destination
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Parts Of Streaming
Producer Kafka Engine Destination
At Least onceOrdered
Partitioned
At Least Once Depends
Depends
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Destinations• File Systems: example HDFS• Batch is good•Only can do exactly once is a file is closed in a single ack.•Good for Scans
• Solr• Everything is Document based making exactly once• Batch is still good•Good for Search Queries
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Destinations• NoSQL: example HBase• Everything has a row key making exactly once for writes• Increments can be applied twice is so be careful•Good for gets and puts
• Kudu• Everything has a row key making exactly once for writes•Good for gets, puts, and scans
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Ingestion Destinations• File Systems: example HDFS•Flume•Kafka Connect
• Solr•Flume•Any Streaming Engine
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Ingestion Destinations
•NoSQL: example HBase•Flume•Any Streaming Engine: Storm and Spark Streaming Tested
•Kudu•Flume•Kafka Connect•Any Streaming Engine: Spark Streaming Tested
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Tricks With Producers• Send Source ID (requires Partitioning In Kafka) •Seq•UUID•UUID plus time
•Partition on SourceID•Watch out for repartitions and partition fail overs
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Streaming Engines
•Consumer•Flume, KafkaConnect
• Storm• Spark Streaming• Flink•Kafka Streams
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Consumer: Flume, KafkaConnect• Simple and Works• Low latency•High throughput • Interceptors•Transformations•Alerting• Ingestions
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Storm•Old Gen• Low latency• Low throughput •At least once•Around for ever• Topology Based
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Spark Streaming• The Juggernaut•Higher Latency•High Through Put• Exactly Once• SQL•MlLib
•Highly used• Easy to Debug/Unit Test• Easy to transition from Batch• Flow Language•600 commits in a month and about 100 meetups
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Spark Streaming
DStream
DStream
DStream
Single Pass
Source Receiver RDD
Source Receiver RDD
RDD
Filter Count Print
Source Receiver RDD
RDD
RDD
Single Pass
Filter Count Print
First Batch
Second Batch
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DStream
DStream
DStream
Single Pass
Source Receiver RDD
Source Receiver RDD
RDD
Filter Count
Source Receiver RDDpartitions
RDDParition
RDD
Single PassFilter Count
Pre-first Batch
First Batch
Second Batch
Stateful RDD 1
Stateful RDD 2
Stateful RDD 1
Spark Streaming
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Flink• I’m Better Than Spark Why Doesn’t Anyone use me•Very much like Spark but not as feature rich• Lower Latency•Micro Batch -> ABS• Asynchronous Barrier Snapshotting
• Flow Language• ~1/6th the comments and meetups•But Slim loves it
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Flink - ABS
Operator
Buffer
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Operator
Buffer
Operator
Buffer
Flink - ABS
Barrier 1A Hit
Barrier 1B Still Behind
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Operator
Buffer
Flink - ABS
Both Barriers Hit
Operator
Buffer
Barrier 1A Hit
Barrier 1B Still Behind
Check Point
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Operator
Buffer
Flink - ABSBoth
Barriers Hit
Check Point
Operator
Buffer Barrier is combined and can move on
Buffer can be flushed
out
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Kafka Streams• The new Kid on the Block•When you only have Kafka• Low Latency•High Throughput• Interesting snapshot approach•Very Young• Flow Language
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Summary about Engines• Ingestion• Flume and KafkaConnect
• Super Real Time and Special • Consumer
• Counting, MlLib, SQL• Spark
• Maybe future and cool• Flink and KafkaStreams
• Odd man out• Storm
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StreamSets Data CollectorBuilding a Higher Level, Open Source Tool
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Traditional and Big Data Founders
StreamSets Company Background
Top tier Investors
Momentum to Date
Strategic Partners
• Founded 2014; exited stealth 9/15• ~30 employees• Double-digit enterprise customers• 10,000 downloads
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Thank you!