Presto pioneered the technology to make Chromebooks print in-network, similar to how a PC or Mac prints locally. Can you really eliminate print drivers? Print drivers might be the most despised technology in all of IT so we want to help you get rid of them. Simply query your printer IP range and we'll add all your compatible printers. App4mac has announced the release of Presto 1.0, a text expander utility for Mac OS X. It costs €9 (US$13). For - Setting up my mac for a poc Scenario: mysql, presto server running as one instance not a cluster, cli is set up. I can see schemas, table names and describe tables via CLI. 5.0 out of 5 stars Presto Pagemanager for MAC. This program works great on Mac OS. I also use it on Win7 Pro. It is invaluable for a small business. 2 people found this helpful. 3.0 out of 5 stars lack of written directions. Reviewed in the United States on June 30, 2013.
Learn how to configure and run Presto, an open-source distributed SQL query engine that helps with running interactive analytic queries.
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Join For FreeIn my previous blog, I talked about getting introduced to Presto. In today's blog, I'll be talking about install and running Presto.
The basic prerequisites for setting up Presto are:
- Linux or Mac OS X.
- Java 8, 64-bit.
- Python 2.4+.
Installation
- Download the Presto Tarball from here.
- Unpack the Tarball.
- After unpacking, you will see a directory
presto-server-0.175
, which we will call the installation directory.
- After unpacking, you will see a directory
Configuring
Inside the installation directory, create a directory called etc
. This directory will hold the following configurations:
- Node properties: Environmental configuration specific to each node.
- JVM config: Command line options for the Java Virtual Machine.
- Config properties: Configuration for the Presto server.
- Catalog properties: Configuration for connectors (data sources).
- Log properties: Configuring the log levels.
Now, we will setup the above properties one by one.
1. Setting Up Node Properties
Create a file called node.properties
inside the etc
folder. This file will contain the configuration specific to each node. Given below is a description of the properties we need to set in this file.
node.environment
: The name of the Presto environment. All the nodes in the cluster must have an identical environment name.node.id
: The unique identifier for every node.node.data-dir
: The path of the data directory.
Note: Presto will store the logs and other data at the location specified in node.data-dir
. It is recommended to create a data directory external to the installation directory, as this allows easy preservation during the upgrade.
You can put the following default content:
2. Setting Up JVM Config
Create a file named jvm.config
inside the etc
folder. In the file, we will specify all the options we need to configure for the launching of the JVM.
You can put the following default content:
Note: Please keep in mind that the format of the file must be a single line per option.
3. Setting Up Config Properties
Create a file named config.properties
in the etc
folder. This file contains the configuration related to the server. Presto servers can double up as worker and coordinator simultaneously. Before setting up the config file, let's discuss the properties in brief:
coordinator
: If set astrue
, it sets the node as coordinator to accept queries from clients and manage query execution. In the case of only worker nodes, this value is set tofalse
.node-scheduler.include-coordinator
: Enables scheduling on thecoordinator
. Can be set totrue
/false
.http-server.http.port
: Specifies the port to start the Presto server.query.max-memory
: Specifies the maximum limit for the memory that the query will be allowed.query.max-memory-per-node
: Specifies the maximum limit for the memory that the query will be allowed on the single node.discovery-server.enabled
: Can be set totrue
/false
. It is used to find all nodes in the cluster. Iffalse
, the coordinator will run the embedded version of the discovery service.discovery.uri
: URI to the discovery server.query.queue-config-file
: File configuration to read from in queue configurations.
Now, let's set the properties in config.properties
.
Shmup love boom mac os. If the node is a coordinator, you can use the following as default content:
If the node is a worker, you can use the following as default content:
For a single node doubling up as worker and coordinator, we can use below configuration as default content:
4. Setting Up Log Level
Create a file called log.properties
in the etc
folder. It will be used to set the minimum log level. The only property you need to set in this file is com.facebook.presto=INFO
.
This property can have the following values: DEBUG
, INFO
, WARN
, and ERROR
.
5. Setting Up the Catalog
Presto accesses the data via connectors that are specified by means of catalogs. Catalogs are registered by creating a catalog property file for each connector. Create a directory called catalog
in etc
. Inside the etc/catalog
directory, create a catalog. For instance, create a catalog for JMX.
https://soft-bridal.mystrikingly.com/blog/piratrash-mac-os. Create jmx.properties
in etc/catalog/
and set the name of the connector like connector.name=jmx
.
Once you have completed these steps, we can begin with running Presto.
Running Presto
Inside the Presto installation directory, we have a launcher script. Now, Presto can be run in either the daemon or as a foreground process. The main difference between the two is that in the foreground mode, the server is started with logs and output is redirected to stdout/sterr
.
To run as a daemon, use bin/launcher start
. To run in the foreground, use bin/launcher start
.
Once you run the above commands, you will be able to see the presto server running on the localhost:8080 (default port) or .
That's all you need to do to start running Presto! In my next blog, I will discuss how to use the Presto CLI and set up the Presto server programmatically for applications.
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Presto Mac Os Download
Microsoft Excel features calculations, graphing tools, pivot tables, and a macro programming language that allows users to work with data in many of the ways that suit their needs, whether on a Windows machine or a Macintosh machine. This article walks through creating a DSN for Presto data in iODBC and accessing Presto data in Microsoft Excel, all on a machine running Mac OS X.
Installing the CData ODBC Drivers on Mac OS X
The CData ODBC Driver for Presto is preconfigured for the iODBC driver manager, as are many other products like Microsoft Excel. This makes the driver easy to use with these tools.
Pesto Mac Salad
Licensing the Driver
In a terminal run the following commands to license the driver. To activate a trial license, omit the key Spores of corruption mac os. input.
Defining a DSN for iODBC with odbc.ini
You can define ODBC data sources in sections in the odbc.ini file. User data sources can only be accessed by the user account whose home folder the odbc.ini is located in. System data sources can be accessed by all users. You can find the correct odbc.ini in the following paths:Privileges | Path |
---|---|
User | /Users/myuser/Library/ODBC/odbc.ini |
System | /Library/ODBC/odbc.ini |
Modifying iODBC's system-wide settings requires elevated permissions; to do so, you can use following to open a text editor from the terminal:
https://cooloload902.weebly.com/containment-protocol-mac-os.html. Set the Server and Port connection properties to connect, in addition to any authentication properties that may be required.
Presto Mason Jar
To enable TLS/SSL, set UseSSL to true.
Authenticating with LDAP
In order to authenticate with LDAP, set the following connection properties:
- AuthScheme: Set this to LDAP.
- User: The username being authenticated with in LDAP.
- Password: The password associated with the User you are authenticating against LDAP with.
Authenticating with Kerberos
In order to authenticate with KERBEROS, set the following connection properties:
- AuthScheme: Set this to KERBEROS.
- KerberosKDC: The Kerberos Key Distribution Center (KDC) service used to authenticate the user.
- KerberosRealm: The Kerberos Realm used to authenticate the user with.
- KerberosSPN: The Service Principal Name for the Kerberos Domain Controller.
- KerberosKeytabFile: The Keytab file containing your pairs of Kerberos principals and encrypted keys.
- User: The user who is authenticating to Kerberos.
- Password: The password used to authenticate to Kerberos.
When you configure the DSN, you may also want to set the Max Rows connection property. This will limit the number of rows returned, which is especially helpful for improving performance when designing reports and visualizations.
In addition to the connection properties required to connect to Presto, the Driver property specifies either a driver definition in the odbcinst.ini file or the path to the driver library. Place your connection properties at the beginning of odbc.ini:
If you wish to authenticate using OAuth, you will need to add an additional connection property to ensure that the OAuth flow can execute properly: Chikito gotchi mac os.
Additionally, in the ODBC Data Sources section, the DSN must be set to a driver defined in the odbcinst.ini file. For example, below is the entry for the DSN created during the driver install:
Registering a DSN for iODBC with odbcinst.ini
You may need to modify the installed driver definition if you change the path to the driver library. To register an ODBC driver, modify the odbcinst.ini file. With iODBC, drivers can be available to only one user account or drivers can be available system wide. You can find the correct odbcinst.ini in the following paths:Presto Mac Os Download
Privileges | Path |
---|---|
User | /Users/myuser/Library/ODBC/odbcinst.ini |
System | /Library/ODBC/odbcinst.ini |
Drivers are defined in sections in the odbcinst.ini file. The section name specifies the name of the driver. In this section, the Driver property specifies the path to the driver library. The driver library is the .dylib file located in the lib subfolder of the installation directory, by default in /Applications/CData ODBC Driver for Presto.
The ODBC Drivers section must also contain a property with the driver name, set to 'Installed'.
Presto Mac Os Update
Testing the Connection
You can test your connection using the iODBC administrator.
- Open a terminal and enter the following command to start the iODBC Administrator with the necessary permissions:
- On the Users tab, select CData Presto Source.
- Click the Test button.
Accessing Presto Data from Microsoft Excel
You can use the DSN configured above to access Presto data from Microsoft Excel.
- Open Microsoft Excel and open a spreadsheet (new or existing).
- Navigate to the data ribbon and select New Database Query From Database
- Select the User or System DSN that you previously configured and click OK.
- Build your SQL query in the Microsoft Query wizard:
- Click Return Data to execute the query and pull data into Excel.
Using the CData ODBC Driver for Presto, you can easily pull your Presto data directly into Excel. Once there, you can leverage all of the powerful features native to Excel to analyze, report, transform your Presto data, and more!