Presto Installation

1 集羣部署

1.1 集羣環境

1.1.1 系統需求

Mac OS X or Linux(測試使用的Centos7.2)

Java 8 Update 92 or higher (8u92+), 64-bit(測試使用的1.8.0_121,64-bit)

1.1.2 組件版本

Presto版本0.172，下載連接。

Hadoop版本：Apache Hadoop2.6.4

Hive版本：Apache Hive 1.2.1

MongoDB版本：mongodb-linux-x86_64-rhel70-3.4.2

 

1.2 集羣配置

1.2.1 軟件部署

下載安裝包至目錄/opt/beh/core，解壓縮，建立軟鏈接

cd /opt/beh/core

tar zxf presto-server-0.172.tar.gz

ln -s presto-server-0.172 presto

cd presto

 

1.2.2 集羣配置

建立配置目錄，而且建立相關配置文件。

cd /opt/beh/core/presto

mkdir data

mkdir etc

cd etc

touch config.properties

touch jvm.config

touch node.properties

touch log.properties

備註：

Config Properties: configuration for the Presto server

JVM Config: command line options for the Java Virtual Machine

Node Properties: environmental configuration specific to each node

Catalog Properties: configuration for Connectors (data sources)

建立data目錄對應的是Node Properties 的參數node.data-dir。

 

• config.properties

coordinator=true

discovery-server.enabled=true

discovery.uri=http://master:8080

node-scheduler.include-coordinator=true

http-server.http.port=8080

query.max-memory=60GB

query.max-memory-per-node=20GB

備註：

These properties require some explanation:

coordinator: Allow this Presto instance to function as a coordinator (accept queries from clients and manage query execution).

node-scheduler.include-coordinator: Allow scheduling work on the coordinator. For larger clusters, processing work on the coordinator can impact query performance because the machine’s resources are not available for the critical task of scheduling, managing and monitoring query execution.

http-server.http.port: Specifies the port for the HTTP server. Presto uses HTTP for all communication, internal and external.

query.max-memory: The maximum amount of distributed memory that a query may use.

query.max-memory-per-node: The maximum amount of memory that a query may use on any one machine.

discovery-server.enabled: Presto uses the Discovery service to find all the nodes in the cluster. Every Presto instance will register itself with the Discovery service on startup. In order to simplify deployment and avoid running an additional service, the Presto coordinator can run an embedded version of the Discovery service. It shares the HTTP server with Presto and thus uses the same port.

discovery.uri: The URI to the Discovery server. Because we have enabled the embedded version of Discovery in the Presto coordinator, this should be the URI of the Presto coordinator. Replace master:8080 to match the host and port of the Presto coordinator. This URI must not end in a slash.

 

•  jvm.config

-server

-Xmx40G

-XX:+UseG1GC

-XX:G1HeapRegionSize=32M

-XX:+UseGCOverheadLimit

-XX:+ExplicitGCInvokesConcurrent

-XX:+HeapDumpOnOutOfMemoryError

-XX:+ExitOnOutOfMemoryError

備註：

 

• node.properties

node.environment=production

node.id=ffffffff-ffff-ffff-ffff-fffffffffff1

node.data-dir=/opt/beh/core/presto/data

備註：

The above properties are described below:

node.environment: The name of the environment. All Presto nodes in a cluster must have the same environment name.

node.id: The unique identifier for this installation of Presto. This must be unique for every node. This identifier should remain consistent across reboots or upgrades of Presto. If running multiple installations of Presto on a single machine (i.e. multiple nodes on the same machine), each installation must have a unique identifier.

node.data-dir: The location (filesystem path) of the data directory. Presto will store logs and other data here,Two softlink for directory 「etc」 and 「plugin」, and var/run will store server pid file,var/log store log.

 

• log.properties

com.facebook.presto=INFO

com.facebook.presto.server=INFO

com.facebook.presto.hive=INFO

備註：

The default minimum level is INFO (thus the above example does not actually change anything). There are four levels: DEBUG, INFO, WARN and ERROR.

 

1.2.3 鏈接器配置

建立鏈接器配置目錄，而且配置相關鏈接器配置

cd /opt/beh/core/presto/etc

mkdir catalog

cd catalog

touch hive.properties

touch jmx.properties

touch mongodb.properties

touch mysql.properties

備註：

 

• hive.properties

connector.name=hive-hadoop2

hive.metastore.uri=thrift://localhost:9083

hive.config.resources=/opt/beh/core/hadoop/etc/hadoop/core-site.xml,/opt/beh/core/hadoop/etc/hadoop/hdfs-site.xml

 

• jmx.properties

connector.name=jmx

jmx.dump-tables=java.lang:type=Runtime,com.facebook.presto.execution.scheduler:name=NodeScheduler

jmx.dump-period=10s

jmx.max-entries=86400

 

• mongodb.properties

connector.name=mongodb

mongodb.seeds=hadoop001:37025,hadoop002:37025,hadoop003:37025

 

• mysql.properties

connector.name=mysql

connection-url=jdbc:mysql://mysqlhost:3306

connection-user=mysqluser

connection-password=mysqlpassword

 

1.2.4 服務啓動

• 環境變量配置

export PRESTO_HOME=/opt/beh/core/presto

export PATH=$PATH:$PRESTO_HOME/bin

命令行執行，或者添加到/opt/beh/conf/beh_env中

 

• 啓動命令

cd /opt/beh/core/presto

./bin/launcher start

 

備註：

The installation directory contains the launcher script in bin/launcher. Presto can be started as a daemon by running the following:

bin/launcher start

Alternatively, it can be run in the foreground, with the logs and other output being written to stdout/stderr (both streams should be captured if using a supervision system like daemontools):

bin/launcher run

Run the launcher with --help to see the supported commands and command line options. In particular, the --verbose option is very useful for debugging the installation.

 

日誌：

After launching, you can find the log files in var/log:

launcher.log: This log is created by the launcher and is connected to the stdout and stderr streams of the server. It will contain a few log messages that occur while the server logging is being initialized and any errors or diagnostics produced by the JVM.

server.log: This is the main log file used by Presto. It will typically contain the relevant information if the server fails during initialization. It is automatically rotated and compressed.

http-request.log: This is the HTTP request log which contains every HTTP request received by the server. It is automatically rotated and compressed.

 

2 命令行接口

下載命令行接口程序拷貝至/opt/beh/core/presto/bin：下載地址

cd /opt/beh/core/presto/bin

chmod -x presto-cli-0.172-executable.jar

ln -s presto-cli-0.172-executable.jar presto

 

測試鏈接：

./presto --server localhost:8080 --catalog hive --schema default

 

 

[hadoop@sparktest bin]$ ./presto --server localhost:8580 --catalog hive --schema default

presto:default> HELP

 

Supported commands:

QUIT

EXPLAIN [ ( option [, ...] ) ] <query>

    options: FORMAT { TEXT | GRAPHVIZ }

             TYPE { LOGICAL | DISTRIBUTED }

DESCRIBE <table>

SHOW COLUMNS FROM <table>

SHOW FUNCTIONS

SHOW CATALOGS [LIKE <pattern>]

SHOW SCHEMAS [FROM <catalog>] [LIKE <pattern>]

SHOW TABLES [FROM <schema>] [LIKE <pattern>]

SHOW PARTITIONS FROM <table> [WHERE ...] [ORDER BY ...] [LIMIT n]

USE [<catalog>.]<schema>

 

presto:default> SHOW CATALOGS;

 Catalog

---------

 hive   

 jmx    

 mongodb

 mysql  

 system 

(5 rows)

 

Query 20170418_121353_00035_yr3tu, FINISHED, 1 node

Splits: 1 total, 1 done (100.00%)

0:00 [0 rows, 0B] [0 rows/s, 0B/s]

 

presto:default> SHOW SCHEMAS FROM HIVE;

       Schema      

--------------------

 default           

 information_schema

 tmp               

 tpc100g           

(4 rows)

 

Query 20170418_121409_00036_yr3tu, FINISHED, 2 nodes

Splits: 18 total, 18 done (100.00%)

0:00 [4 rows, 55B] [43 rows/s, 601B/s]

 

presto:default> USE hive.tmp;

presto:tmp> show tables;

    Table   

-------------

 date_dim   

 item       

 store_sales

(3 rows)

 

Query 20170418_121459_00040_yr3tu, FINISHED, 2 nodes

Splits: 18 total, 18 done (100.00%)

0:00 [3 rows, 62B] [40 rows/s, 830B/s]

 

presto:tmp> select count(*) from item;

 _col0 

--------

 204000

(1 row)

 

Query 20170418_121540_00041_yr3tu, FINISHED, 3 nodes

Splits: 20 total, 20 done (100.00%)

0:02 [204K rows, 11.8MB] [81.8K rows/s, 4.74MB/s]  

 

presto:tmp> quit