Haoyuan Li, Tachyon Nexus

haoyuan@tachyonnexus.com

September 30, 2015 @ Strata and Hadoop World NYC 2015
An Open Source Memory-Centric
Distributed Storage System
Outline
•  Open Source
•  Introduction to Tachyon
•  New Features
•  Getting Involved
2
Outline
•  Open Source
•  Introduction to Tachyon
•  New Features
•  Getting Involved
3
History
•  Started at UC Berkeley AMPLab
–  From summer 2012
–  Same lab produced Apache Spark and Apache Mesos
•  Open sourced
–  April 2013
–  Apache License 2.0
–  Latest Release: Version 0.7.1 (August 2015)
•  Deployed at > 100 companies
4
Contributors Growth
5
v0.4!
Feb ‘14
v0.3!
Oct ‘13
v0.2
Apr ‘13
v0.1
Dec ‘12
v0.6!
Mar ‘15
v0.5!
Jul ‘14
v0.7!
Jul ‘15
1
 3
15
30
46
70
111
Contributors Growth
6
> 150 Contributors
(3x increment over the last Strata NYC)
> 50 Organizations
Contributors Growth
7
One of the Fastest
Growing Big Data
Open Source
Project
Thanks to Contributors and Users!
8
One Tachyon Production

Deployment Example
•  Baidu (Dominant Search Engine in China,
~ 50 Billion USD Market Cap)
•  Framework: SparkSQL
•  Under Storage: Baidu’s File System
•  Storage Media: MEM + HDD
•  100+ nodes deployment
•  1PB+ managed space
•  30x Performance Improvement
9
Outline
•  Open Source
•  Introduction to Tachyon
•  New Features
•  Getting Involved
10
Tachyon is an
Open Source

Memory-centric

Distributed
Storage System
11
12
Why Tachyon?
Performance Trend: 

Memory is Fast
•  RAM throughput 

increasing exponentially
•  Disk throughput
increasing slowly
13
Memory-locality key to interactive response times
Price Trend: Memory is Cheaper
source:	
  jcmit.com	
  
14
Realized by many…
15
16
Is the
Problem Solved?
17
Missing a Solution
for the Storage Layer
A Use Case Example with - 
•  Fast, in-memory data processing framework
– Keep one in-memory copy inside JVM
– Track lineage of operations used to derive data
– Upon failure, use lineage to recompute data
map
filter
 map
join
 reduce
Lineage Tracking
18
Issue 1
19
Data Sharing is the bottleneck in
analytics pipeline:

Slow writes to disk
Spark Job1
Spark mem
block manager
block 1
block 3
Spark Job2
Spark mem
block manager
block 3
block 1
HDFS / Amazon S3
block 1
block 3
block 2
block 4
storage engine & 
execution engine
same process
(slow writes)
Issue 1
20
Spark Job
Spark mem
block manager
block 1
block 3
Hadoop MR Job
YARN
HDFS / Amazon S3
block 1
block 3
block 2
block 4
Data Sharing is the bottleneck in
analytics pipeline:

Slow writes to disk
storage engine & 
execution engine
same process
(slow writes)
Issue 1 resolved with Tachyon
21
Memory-speed data sharing

among jobs in different
frameworks
execution engine & 

storage engine
same process
(fast writes)
Spark Job
Spark mem
Hadoop MR Job
YARN
HDFS / Amazon S3
block 1
block 3
block 2
block 4
HDFS	
  
disk	
  
block	
  1	
  
block	
  3	
  
block	
  2	
  
block	
  4	
  
Tachyon!
in-memory
block 1
block 3
 block 4
Issue 2
22
Spark Task
Spark memory
block manager
block 1
block 3
HDFS / Amazon S3
block 1
block 3
block 2
block 4
execution engine & 

storage engine
same process
Cache loss when process
crashes
Issue 2
23
crash
Spark memory
block manager
block 1
block 3
HDFS / Amazon S3
block 1
block 3
block 2
block 4
execution engine & 

storage engine
same process
Cache loss when process
crashes
HDFS / Amazon S3
Issue 2
24
block 1
block 3
block 2
block 4
execution engine & 

storage engine
same process
crash
Cache loss when process
crashes
HDFS / Amazon S3
block 1
block 3
block 2
block 4
Tachyon!
in-memory
block 1
block 3
 block 4
Issue 2 resolved with Tachyon
25
Spark Task
Spark memory
block manager
execution engine & 

storage engine
same process
Keep in-memory data safe,

even when a job crashes.
Issue 2 resolved with Tachyon
26
HDFS	
  
disk	
  
block	
  1	
  
block	
  3	
  
block	
  2	
  
block	
  4	
  
execution engine & 

storage engine
same process
Tachyon!
in-memory 

block 1
block 3
 block 4
crash
HDFS / Amazon S3
block 1
block 3
block 2
block 4
Keep in-memory data safe,

even when a job crashes.
HDFS / Amazon S3
Issue 3
27
In-memory Data Duplication &
Java Garbage Collection
Spark Job1
Spark mem
block manager
block 1
block 3
Spark Job2
Spark mem
block manager
block 3
block 1
block 1
block 3
block 2
block 4
execution engine & 

storage engine
same process
(duplication & GC)
Issue 3 resolved with Tachyon
28
No in-memory data duplication,

much less GC
Spark Job1
Spark mem
Spark Job2
Spark mem
HDFS / Amazon S3
block 1
block 3
block 2
block 4
execution engine & 

storage engine
same process
(no duplication & GC)
HDFS	
  
disk	
  
block	
  1	
  
block	
  3	
  
block	
  2	
  
block	
  4	
  
Tachyon!
in-memory
block 1
block 3
 block 4
Previously Mentioned
•  A memory-centric storage architecture
•  Push lineage down to storage layer
29
Tachyon Memory-Centric Architecture
30
Tachyon Memory-Centric Architecture
31
Lineage in Tachyon
32
Outline
•  Open Source
•  Introduction to Tachyon
•  New Features
•  Getting Involved
33
1) Eco-system:
Enable new workload in any storage;
Work with the framework of your choice;
34
2) Tachyon running in
production environment, 
both 
in the Cloud and on Premise.
35
Use Case: Baidu
•  Framework: SparkSQL
•  Under Storage: Baidu’s File System
•  Storage Media: MEM + HDD
•  100+ nodes deployment
•  1PB+ managed space
•  30x Performance Improvement
36
Use Case: a SAAS Company
•  Framework: Impala
•  Under Storage: S3
•  Storage Media: MEM + SSD
•  15x Performance Improvement
37
Use Case: an Oil Company
•  Framework: Spark
•  Under Storage: GlusterFS
•  Storage Media: MEM only
•  Analyzing data in traditional storage
38
Use Case: a SAAS Company
•  Framework: Spark
•  Under Storage: S3
•  Storage Media: SSD only
•  Elastic Tachyon deployment
39
40
What if 

data size exceeds 

memory capacity?
41
3) Tiered Storage:

Tachyon Manages More Than DRAM
MEM
SSD
HDD
Faster
Higher 

Capacity
42
Configurable Storage Tiers
MEM only
MEM + HHD
SSD only
43
4) Pluggable Data Management Policy
Evict stale data to
lower tier
Promote hot data to
upper tier
44
Pin Data in Memory
5) Transparent Naming
45
6) Unified Namespace
46
More Features
•  7) Remote Write Support
•  8) Easy deployment with Mesos and Yarn
•  9) Initial Security Support
•  10) One Command Cluster Deployment
•  11) Metrics Reporting for Clients, Workers,
and Master
47
12) More Under Storage Supports
48
Reported Tachyon Usage
49
Outline
•  Open Source
•  Introduction to Tachyon
•  New Features
•  Getting Involved
50
Memory-Centric Distributed Storage
Welcome to try, contact, and collaborate!
51
JIRA New Contributor Tasks
•  Team consists of Tachyon creators, top contributors
•  Series A ($7.5 million) from Andreessen Horowitz


•  Committed to Tachyon Open Source


52
53
Strata NYC 2015
•  Welcome to visit us at our booth #P18.
•  Check out other Tachyon related talks.
–  First-ever scalable, distributed deep learning architecture
using Spark and Tachyon
•  Christopher Nguyen (Adatao, Inc.), Vu Pham (Adatao, Inc)
•  2:05pm–2:45pm Thursday, 10/01/2015
–  Faster time to insight using Spark, Tachyon, and Zeppelin
•  Nirmal Ranganathan (Rackspace Hosting)
•  2:05pm–2:45pm Thursday, 10/01/2015
54
•  Try Tachyon: http://tachyon-project.org


•  Develop Tachyon: https://github.com/amplab/tachyon


•  Meet Friends: http://www.meetup.com/Tachyon


•  Get News: http://goo.gl/mwB2sX
•  Tachyon Nexus: http://www.tachyonnexus.com

•  Contact us: haoyuan@tachyonnexus.com
55

Tachyon: An Open Source Memory-Centric Distributed Storage System

  • 1.
    Haoyuan Li, TachyonNexus
 haoyuan@tachyonnexus.com
 September 30, 2015 @ Strata and Hadoop World NYC 2015 An Open Source Memory-Centric Distributed Storage System
  • 2.
    Outline •  Open Source • Introduction to Tachyon •  New Features •  Getting Involved 2
  • 3.
    Outline •  Open Source • Introduction to Tachyon •  New Features •  Getting Involved 3
  • 4.
    History •  Started atUC Berkeley AMPLab –  From summer 2012 –  Same lab produced Apache Spark and Apache Mesos •  Open sourced –  April 2013 –  Apache License 2.0 –  Latest Release: Version 0.7.1 (August 2015) •  Deployed at > 100 companies 4
  • 5.
    Contributors Growth 5 v0.4! Feb ‘14 v0.3! Oct‘13 v0.2 Apr ‘13 v0.1 Dec ‘12 v0.6! Mar ‘15 v0.5! Jul ‘14 v0.7! Jul ‘15 1 3 15 30 46 70 111
  • 6.
    Contributors Growth 6 > 150Contributors (3x increment over the last Strata NYC) > 50 Organizations
  • 7.
    Contributors Growth 7 One ofthe Fastest Growing Big Data Open Source Project
  • 8.
  • 9.
    One Tachyon Production
 DeploymentExample •  Baidu (Dominant Search Engine in China, ~ 50 Billion USD Market Cap) •  Framework: SparkSQL •  Under Storage: Baidu’s File System •  Storage Media: MEM + HDD •  100+ nodes deployment •  1PB+ managed space •  30x Performance Improvement 9
  • 10.
    Outline •  Open Source • Introduction to Tachyon •  New Features •  Getting Involved 10
  • 11.
    Tachyon is an OpenSource
 Memory-centric
 Distributed Storage System 11
  • 12.
  • 13.
    Performance Trend: 
 Memoryis Fast •  RAM throughput 
 increasing exponentially •  Disk throughput increasing slowly 13 Memory-locality key to interactive response times
  • 14.
    Price Trend: Memoryis Cheaper source:  jcmit.com   14
  • 15.
  • 16.
  • 17.
    17 Missing a Solution forthe Storage Layer
  • 18.
    A Use CaseExample with - •  Fast, in-memory data processing framework – Keep one in-memory copy inside JVM – Track lineage of operations used to derive data – Upon failure, use lineage to recompute data map filter map join reduce Lineage Tracking 18
  • 19.
    Issue 1 19 Data Sharingis the bottleneck in analytics pipeline:
 Slow writes to disk Spark Job1 Spark mem block manager block 1 block 3 Spark Job2 Spark mem block manager block 3 block 1 HDFS / Amazon S3 block 1 block 3 block 2 block 4 storage engine & execution engine same process (slow writes)
  • 20.
    Issue 1 20 Spark Job Sparkmem block manager block 1 block 3 Hadoop MR Job YARN HDFS / Amazon S3 block 1 block 3 block 2 block 4 Data Sharing is the bottleneck in analytics pipeline:
 Slow writes to disk storage engine & execution engine same process (slow writes)
  • 21.
    Issue 1 resolvedwith Tachyon 21 Memory-speed data sharing
 among jobs in different frameworks execution engine & 
 storage engine same process (fast writes) Spark Job Spark mem Hadoop MR Job YARN HDFS / Amazon S3 block 1 block 3 block 2 block 4 HDFS   disk   block  1   block  3   block  2   block  4   Tachyon! in-memory block 1 block 3 block 4
  • 22.
    Issue 2 22 Spark Task Sparkmemory block manager block 1 block 3 HDFS / Amazon S3 block 1 block 3 block 2 block 4 execution engine & 
 storage engine same process Cache loss when process crashes
  • 23.
    Issue 2 23 crash Spark memory blockmanager block 1 block 3 HDFS / Amazon S3 block 1 block 3 block 2 block 4 execution engine & 
 storage engine same process Cache loss when process crashes
  • 24.
    HDFS / AmazonS3 Issue 2 24 block 1 block 3 block 2 block 4 execution engine & 
 storage engine same process crash Cache loss when process crashes
  • 25.
    HDFS / AmazonS3 block 1 block 3 block 2 block 4 Tachyon! in-memory block 1 block 3 block 4 Issue 2 resolved with Tachyon 25 Spark Task Spark memory block manager execution engine & 
 storage engine same process Keep in-memory data safe,
 even when a job crashes.
  • 26.
    Issue 2 resolvedwith Tachyon 26 HDFS   disk   block  1   block  3   block  2   block  4   execution engine & 
 storage engine same process Tachyon! in-memory block 1 block 3 block 4 crash HDFS / Amazon S3 block 1 block 3 block 2 block 4 Keep in-memory data safe,
 even when a job crashes.
  • 27.
    HDFS / AmazonS3 Issue 3 27 In-memory Data Duplication & Java Garbage Collection Spark Job1 Spark mem block manager block 1 block 3 Spark Job2 Spark mem block manager block 3 block 1 block 1 block 3 block 2 block 4 execution engine & 
 storage engine same process (duplication & GC)
  • 28.
    Issue 3 resolvedwith Tachyon 28 No in-memory data duplication,
 much less GC Spark Job1 Spark mem Spark Job2 Spark mem HDFS / Amazon S3 block 1 block 3 block 2 block 4 execution engine & 
 storage engine same process (no duplication & GC) HDFS   disk   block  1   block  3   block  2   block  4   Tachyon! in-memory block 1 block 3 block 4
  • 29.
    Previously Mentioned •  Amemory-centric storage architecture •  Push lineage down to storage layer 29
  • 30.
  • 31.
  • 32.
  • 33.
    Outline •  Open Source • Introduction to Tachyon •  New Features •  Getting Involved 33
  • 34.
    1) Eco-system: Enable newworkload in any storage; Work with the framework of your choice; 34
  • 35.
    2) Tachyon runningin production environment, both in the Cloud and on Premise. 35
  • 36.
    Use Case: Baidu • Framework: SparkSQL •  Under Storage: Baidu’s File System •  Storage Media: MEM + HDD •  100+ nodes deployment •  1PB+ managed space •  30x Performance Improvement 36
  • 37.
    Use Case: aSAAS Company •  Framework: Impala •  Under Storage: S3 •  Storage Media: MEM + SSD •  15x Performance Improvement 37
  • 38.
    Use Case: anOil Company •  Framework: Spark •  Under Storage: GlusterFS •  Storage Media: MEM only •  Analyzing data in traditional storage 38
  • 39.
    Use Case: aSAAS Company •  Framework: Spark •  Under Storage: S3 •  Storage Media: SSD only •  Elastic Tachyon deployment 39
  • 40.
    40 What if 
 datasize exceeds 
 memory capacity?
  • 41.
    41 3) Tiered Storage:
 TachyonManages More Than DRAM MEM SSD HDD Faster Higher 
 Capacity
  • 42.
    42 Configurable Storage Tiers MEMonly MEM + HHD SSD only
  • 43.
    43 4) Pluggable DataManagement Policy Evict stale data to lower tier Promote hot data to upper tier
  • 44.
  • 45.
  • 46.
  • 47.
    More Features •  7)Remote Write Support •  8) Easy deployment with Mesos and Yarn •  9) Initial Security Support •  10) One Command Cluster Deployment •  11) Metrics Reporting for Clients, Workers, and Master 47
  • 48.
    12) More UnderStorage Supports 48
  • 49.
  • 50.
    Outline •  Open Source • Introduction to Tachyon •  New Features •  Getting Involved 50
  • 51.
    Memory-Centric Distributed Storage Welcometo try, contact, and collaborate! 51 JIRA New Contributor Tasks
  • 52.
    •  Team consistsof Tachyon creators, top contributors •  Series A ($7.5 million) from Andreessen Horowitz
 •  Committed to Tachyon Open Source
 52
  • 53.
  • 54.
    Strata NYC 2015 • Welcome to visit us at our booth #P18. •  Check out other Tachyon related talks. –  First-ever scalable, distributed deep learning architecture using Spark and Tachyon •  Christopher Nguyen (Adatao, Inc.), Vu Pham (Adatao, Inc) •  2:05pm–2:45pm Thursday, 10/01/2015 –  Faster time to insight using Spark, Tachyon, and Zeppelin •  Nirmal Ranganathan (Rackspace Hosting) •  2:05pm–2:45pm Thursday, 10/01/2015 54
  • 55.
    •  Try Tachyon:http://tachyon-project.org
 •  Develop Tachyon: https://github.com/amplab/tachyon
 •  Meet Friends: http://www.meetup.com/Tachyon
 •  Get News: http://goo.gl/mwB2sX •  Tachyon Nexus: http://www.tachyonnexus.com •  Contact us: haoyuan@tachyonnexus.com 55