AWS Webcast - Redshift Overview and New Features
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![Page 1: AWS Webcast - Redshift Overview and New Features](https://reader033.fdocuments.net/reader033/viewer/2022051323/54b778964a7959e20d8b4590/html5/thumbnails/1.jpg)
Fast, simple, petabyte-scale data warehousing for less than $1,000/TB/Year
Amazon Redshift
Rahul Pathak | Senior Product Manager, AWS | @rahulpathak
Jie Li |Data Infra, Pinterest | @jay23jack
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Petabyte scale; massively parallel
Relational data warehouse
Fully managed; zero admin
SSD & HDD platforms
$999/TB/Year
Amazon
Redshift
![Page 3: AWS Webcast - Redshift Overview and New Features](https://reader033.fdocuments.net/reader033/viewer/2022051323/54b778964a7959e20d8b4590/html5/thumbnails/3.jpg)
Common Customer Use Cases
• Reduce costs by extending DW rather than adding HW
• Migrate completely from
existing DW systems
• Respond faster to business
• Improve performance by an order of magnitude
• Make more data available for analysis
• Access business data via standard reporting tools
• Add analytic functionality to applications
• Scale DW capacity as demand grows
• Reduce HW & SW costs by an order of magnitude
Traditional Enterprise DW Big Data SaaS Companies
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Amazon Redshift Customers
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Growing Ecosystem
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Data Loading Options
• Parallel loads to Amazon S3
• AWS Direct Connect
• AWS Import/Export
• Amazon Kinesis
• Systems integrators
• Data Integration Software
Data Integration
Systems Integrators
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Amazon Redshift Architecture
• Leader Node – SQL endpoint
– Stores metadata
– Coordinates query execution
• Compute Nodes – Local, columnar storage
– Execute queries in parallel
– Load, backup, restore via Amazon S3; load from Amazon DynamoDB or SSH
• Two hardware platforms – Optimized for data processing
– DW1: HDD; scale from 2TB to 1.6PB
– DW2: SSD; scale from 160GB to 256TB
10 GigE
(HPC)
Ingestion Backup Restore
JDBC/ODBC
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Amazon Redshift Node Types
• Optimized for I/O intensive workloads
• High disk density
• On demand at $0.85/hour
• As low as $1,000/TB/Year
• Scale from 2TB to 1.6PB
DW1.XL: 16 GB RAM, 2 Cores 3 Spindles, 2 TB compressed storage
DW1.8XL: 128 GB RAM, 16 Cores, 24 Spindles 16 TB compressed, 2 GB/sec scan
rate
• High performance at smaller storage size
• High compute and memory density
• On demand at $0.25/hour
• As low as $5,500/TB/Year
• Scale from 160GB to 256TB
DW2.L *New*: 16 GB RAM, 2 Cores, 160 GB compressed SSD storage
DW2.8XL *New*: 256 GB RAM, 32 Cores, 2.56 TB of compressed SSD storage
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Amazon Redshift dramatically reduces I/O
• Column storage
• Data compression
• Zone maps
• Direct-attached storage
• With row storage you do
unnecessary I/O
• To get total amount, you
have to read everything
ID Age State Amount
123 20 CA 500
345 25 WA 250
678 40 FL 125
957 37 WA 375
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• With column storage, you
only read the data you
need
Amazon Redshift dramatically reduces I/O
• Column storage
• Data compression
• Zone maps
• Direct-attached storage
ID Age State Amount
123 20 CA 500
345 25 WA 250
678 40 FL 125
957 37 WA 375
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analyze compression listing;
Table | Column | Encoding
---------+----------------+----------
listing | listid | delta
listing | sellerid | delta32k
listing | eventid | delta32k
listing | dateid | bytedict
listing | numtickets | bytedict
listing | priceperticket | delta32k
listing | totalprice | mostly32
listing | listtime | raw
Amazon Redshift dramatically reduces I/O
• Column storage
• Data compression
• Zone maps
• Direct-attached storage
• COPY compresses
automatically
• You can analyze and override
• More performance, less cost
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Amazon Redshift dramatically reduces I/O
• Column storage
• Data compression
• Zone maps
• Direct-attached storage
10 | 13 | 14 | 26 |…
… | 100 | 245 | 324
375 | 393 | 417…
… 512 | 549 | 623
637 | 712 | 809 …
… | 834 | 921 |
959
10
324
375
623
637
959
• Track the minimum and
maximum value for each
block
• Skip over blocks that don’t
contain relevant data
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Amazon Redshift dramatically reduces I/O
• Column storage
• Data compression
• Zone maps
• Direct-attached storage
• Use local storage for
performance
• Maximize scan rates
• Automatic replication and
continuous backup
• HDD & SSD platforms
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Amazon Redshift parallelizes and distributes everything
• Query
• Load
• Backup/Restore
• Resize
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• Load in parallel from Amazon S3
or Amazon DynamoDB or any SSH
connection
• Data automatically distributed
and sorted according to DDL
• Scales linearly with number of
nodes
Amazon Redshift parallelizes and distributes everything
• Query
• Load
•
• Backup/Restore
• Resize
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• Backups to Amazon S3 are automatic,
continuous and incremental
• Configurable system snapshot retention
period. Take user snapshots on-demand
• Cross region backups for disaster recovery
• Streaming restores enable you to resume
querying faster
Amazon Redshift parallelizes and distributes everything
• Query
• Load
• Backup/Restore
• Resize
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• Resize while remaining online
• Provision a new cluster in the
background
• Copy data in parallel from node to
node
• Only charged for source cluster
Amazon Redshift parallelizes and distributes everything
• Query
• Load
• Backup/Restore
• Resize
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• Automatic SQL endpoint
switchover via DNS
• Decommission the source
cluster
• Simple operation via Console
or API
Amazon Redshift parallelizes and distributes everything
• Query
• Load
• Backup/Restore
• Resize
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Amazon Redshift is priced to let you analyze all your data
• Number of nodes x
cost per hour
• No charge for leader
node
• No upfront costs
• Pay as you go
DW1 (HDD) Price Per Hour for
DW1.XL Single Node
Effective Annual
Price per TB
On-Demand $ 0.850 $ 3,723
1 Year Reservation $ 0.500 $ 2,190
3 Year Reservation $ 0.228 $ 999
DW2 (SSD) Price Per Hour for
DW2.L Single Node
Effective Annual
Price per TB
On-Demand $ 0.250 $ 13,688
1 Year Reservation $ 0.161 $ 8,794
3 Year Reservation $ 0.100 $ 5,498
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Amazon Redshift is easy to use
• Provision in minutes
• Monitor query performance
• Point and click resize
• Built in security
• Automatic backups
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Amazon Redshift has security built-in
• SSL to secure data in transit
• Encryption to secure data at rest
– AES-256; hardware accelerated
– All blocks on disks and in Amazon S3
encrypted
– HSM Support
• No direct access to compute nodes
• Audit logging & AWS CloudTrail integration
• Amazon VPC support
• SOC 1/2/3, PCI-DSS Level 1, FedRAMP, others
10 GigE
(HPC)
Ingestion
Backup
Restore
Customer VPC
Internal VPC
JDBC/ODBC
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Amazon Redshift continuously backs up your
data and recovers from failures
• Replication within the cluster and backup to Amazon S3 to maintain multiple
copies of data at all times
• Backups to Amazon S3 are continuous, automatic, and incremental
– Designed for eleven nines of durability
• Continuous monitoring and automated recovery from failures of drives and nodes
• Able to restore snapshots to any Availability Zone within a region
• Easily enable backups to a second region for disaster recovery
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50+ new features since launch • Regions – N. Virginia, Oregon, Dublin, Tokyo, Singapore, Sydney
• Certifications – PCI, SOC 1/2/3
• Security – Load/unload encrypted files, Resource-level IAM, Temporary credentials, HSM
• Manageability – Snapshot sharing, backup/restore/resize progress indicators, Cross-region
• Query – Regex, Cursors, MD5, SHA1, Time zone, workload queue timeout, HLL
• Ingestion – S3 Manifest, LZOP/LZO, JSON built-ins, UTF-8 4byte, invalid character substitution, CSV, auto datetime format detection, epoch, Ingest from SSH
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Amazon Redshift Feature Delivery
Service Launch (2/14)
PDX (4/2)
Temp Credentials (4/11)
Unload Encrypted Files
DUB (4/25)
NRT (6/5)
JDBC Fetch Size (6/27)
Unload logs (7/5)
4 byte UTF-8 (7/18)
Statement Timeout (7/22)
SHA1 Builtin (7/15)
Timezone, Epoch, Autoformat (7/25)
WLM Timeout/Wildcards (8/1)
CRC32 Builtin, CSV, Restore Progress (8/9)
UTF-8 Substitution (8/29)
JSON, Regex, Cursors (9/10)
Split_part, Audit tables (10/3)
SIN/SYD (10/8)
HSM Support (11/11)
Kinesis EMR/HDFS/SSH copy, Distributed Tables, Audit
Logging/CloudTrail, Concurrency, Resize Perf., Approximate Count Distinct, SNS
Alerts (11/13)
SOC1/2/3 (5/8)
Sharing snapshots (7/18)
Resource Level IAM (8/9)
PCI (8/22) Distributed Tables, Single Node Cursor Support, Maximum Connections to 500
(12/13)
EIP Support for VPC Clusters (12/28)
New query monitoring system tables and diststyle all (1/13)
Redshift on DW2 (SSD) Nodes (1/23)
Compression for COPY from SSH, Fetch size support for single node clusters, new system tables with commit stats,
row_number(), strotol() and query termination (2/13)
Resize progress indicator & Cluster Version (3/21)
Regex_Substr, COPY from JSON (3/25)
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COPY from JSON {
"jsonpaths":
[
"$['id']",
"$['name']",
"$['location'][0]",
"$['location'][1]",
"$['seats']"
]
}
COPY venue FROM 's3://mybucket/venue.json’ credentials
'aws_access_key_id=ACCESS-KEY-ID; aws_secret_access_key=SECRET-ACCESS-KEY'
JSON AS 's3://mybucket/venue_jsonpaths.json';
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REGEX_SUBSTR()
select email, regexp_substr(email,'@[^.]*')
from users limit 5;
email | regexp_substr
--------------------------------------------+----------------
[email protected] | @nonnisiAenean
[email protected] | @lacusUtnec
[email protected] | @semperpretiumneque
[email protected] | @tristiquealiquet
[email protected] | @sodalesat
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Resize Progress
• Progress indicator in
console
• New API call
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Redshift
EMR
EC2
Analyze
Glacier
S3
DynamoDB
Store
Import Export
Direct Connect
Collect
Kinesis
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Powering interactive data analysis by
Amazon Redshift
Jie Li
Data Infra at Pinterest
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Pinterest: a visual discovery and
collection tool
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How we use data
KPI A/B Experiments
Recommendations
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Data Infra at Pinterest (early 2013)
Kafka
MySQL HBase Redis
S3 Hadoop
Hive Cascadin
g
Amazon Web Services
Batch data pipeline
Interactive data analysis
MySQL Analytics Dashboard
Pinball
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Low-latency Data Warehouse
• SQL on Hadoop
– Shark, Impala, Drill, Tez, Presto, …
– Open source but immature
• Massive Parallel Processing (MPP)
– Asterdata, Vertica, ParAccel, …
– Mature but expensive
• Amazon Redshift
– ParAccel on AWS
– Mature but also cost-effective
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Highlights of Amazon Redshift
Low Cost • On-demand $0.85 per hour
• 3yr Reserved Instances $999/TB/year
• Free snapshots on Amazon S3
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Highlights of Amazon Redshift
Low maintenance overhead • Fully self-managed
• Automated maintenance & upgrades
• Built-in admin dashboard
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Highlights of Amazon Redshift
Superior performance (25-100x over Hive)
1,226
2,070 1,971
5,494
13 64 76 40 0
1000
2000
3000
4000
5000
6000
Q1 Q2 Q3 Q4
Se
co
nd
s
Hive RedShift
Note: based on our own dataset and queries.
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Cool, but how do we integrate
Amazon Redshift
with Hive/Hadoop?
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First, build ETL from Hive into Amazon Redshift
Hive S3 Redshift
Extract & Transform Load
Unstructured
Unclean
Structured
Clean
Columnar
Compresse
d
Hadoop/Hive is perfect for heavy-lifting ETL workloads
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Audit ETL for Data Consistency
Hive S3 Redshift
Amazon S3 is eventually consistent in US Standard (EC) !
Audit
Also reduce number of files on S3 to alleviate EC
Audit
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ETL Best Practices
Activity What worked What didn’t work
Schematizing Hive tables Writing column-mapping scripts to generate ETL queries
N/A
Cleaning data Filtering out non-ASCII characters
Loading all characters
Loading big tables with sortkey Sorting externally in Hadoop/Hive and loading in chunks
Loading unordered data directly
Loading time-series tables Appending to the table in the order of time (sortkey)
A table per day connected with view performing poorly
Table retention Insert into a new table Delete and vacuum (poor performance)
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Now we’ve got the data.
Is it ready for superior performance?
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Understand the performance
Compute
Leader
Compute Compute
System Stats
① Keep system stats up to date
② Optimize your data layout with sortkey and distkey
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Performance debugging
• Worth doing your own homework
– Use “EXPLAIN” to understand the query
execution
• Case
– One query optimized from 3 hours to 7 seconds
– Caused by outdated system stats
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Best Practice Details
Select only the columns you need Redshift is a columnar database and it only scans the columns you need
to speed things up. “SELECT *” is usually bad.
Use the sortkey (dt or created_at) Using sortkey can skip unnecessary data. Most of our tables are using dt or
created_at as the sortkey.
Avoid slow data transferring Transferring large query result from Redshift to the local client may be slow.
Try saving the result as a Redshift table or using the command line client
on EC2.
Apply selective filters before join Join operation can be significantly faster if we filter out irrelevant data as
much as possible.
Run one query at a time The performance gets diluted with more queries. So be patient.
Understand the query plan by
EXPLAIN
EXPLAIN gives you idea why a query may be slow. For advanced users
only.
Educate users with best practices
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But Redshift is a shared service
One query may slow down the whole cluster
And we have 100+ regular users
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Proactive monitoring
System
tables
Real-time
monitoring
slow
queries
Analyzing
patterns
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Reducing contention
• Run heavy ETL during night
• Time out user queries during peak
hours
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Amazon Redshift at Pinterest Today
• 16 node 256TB cluster
• 2TB data per day
• 100+ regular users
• 500+ queries per day
– 75% <= 35 seconds, 90% <= 2 minute
• Operational effort <= 5 hours/week
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Redshift integrated at Pinterest
Kafka
MySQL HBase Redis
S3
Hadoop
Hive Cascadin
g
Amazon Web Service
Batch data pipeline
Interactive data analysis
Redshift
MySQL Analytics
Dashboard
Pinball
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Acknowledgements
• Redshift team
– Stable technology
– Timely support
– Open to feature requests
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Thank You!