Skip to main content

The Crate Data Shell

Project description

Crate

Overview

This is the Crate Data shell called crash.

Installation

Installing via pip

To install crash via pip use the following command:

$ pip install crash

To update use:

$ pip install -U crash

Standalone

There is also a single file executable that includes all dependencies and can be run as long as python (>= 2.6) is available on the system.

Download Crash bundle

Invocation

If the package was installed using pip the shell can be started by running the command crash in a terminal.

For usage information and command line options invoke:

crash --help

Help & Contact

Do you have any questions? Or suggestions? We would be very happy to help you. So, feel free to swing by our IRC channel #crate on Freenode. Or for further information and official contact please visit https://crate.io/.

License

Copyright 2013-2014 CRATE Technology GmbH (“Crate”)

Licensed to CRATE Technology GmbH (“Crate”) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. Crate licenses this file to you under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

However, if you have executed another commercial license agreement with Crate these terms will supersede the license and you may use the software solely pursuant to the terms of the relevant commercial agreement.

Crate Shell

The crash shell provides a CLI for the Crate Server.

If the package was installed using pip the shell can be started by invoking crash in a terminal.

crash by default will try to connect to localhost:4200. To connect to another host use the connect command inside the shell or use the –hosts argument when launching the shell.

When you connect to a server that is not reachable or whose hostname cannot be resolved you will get an error:

cr> connect 127.0.0.1:65535
+------------------------+-----------+-----------+--------------------+
| server_url             | node_name | connected | message            |
+------------------------+-----------+-----------+--------------------+
| http://127.0.0.1:65535 | NULL      | FALSE     | Connection refused |
+------------------------+-----------+-----------+--------------------+
CONNECT ERROR

cr> connect null.lol:4200
+----------------------+-----------+-----------+--------------------------------+
| server_url           | node_name | connected | message                        |
+----------------------+-----------+-----------+--------------------------------+
| http://null.lol:4200 | NULL      | FALSE     | Hostname could no be resolved. |
+----------------------+-----------+-----------+--------------------------------+
CONNECT ERROR

Successful connects will give you some information about the servers you connect to:

cr> connect 127.0.0.1:44209
+------------------------+-----------+-----------+---------+
| server_url             | node_name | connected | message |
+------------------------+-----------+-----------+---------+
| http://127.0.0.1:44209 | crate     | TRUE      | OK      |
+------------------------+-----------+-----------+---------+
CONNECT OK

If you connect to more than one server, the command will succeed if at least one server is reachable:

cr> CONNECT 127.0.0.1:44209 null.lol:4295
+------------------------+-----------+-----------+--------------------------------+
| server_url             | node_name | connected | message                        |
+------------------------+-----------+-----------+--------------------------------+
| http://127.0.0.1:44209 | crate     | TRUE      | OK                             |
| http://null.lol:4295   | NULL      | FALSE     | Hostname could no be resolved. |
+------------------------+-----------+-----------+--------------------------------+
CONNECT OK

Once the shell is connected, SQL statements can be executed simply by entering them without any special arguments like this:

cr> SELECT schema_name, table_name from information_schema.tables
... order by table_name
+--------------------+-------------------+
| schema_name        | table_name        |
+--------------------+-------------------+
| sys                | cluster           |
| information_schema | columns           |
| sys                | nodes             |
| sys                | shards            |
| information_schema | table_constraints |
| information_schema | tables            |
+--------------------+-------------------+
SELECT 6 rows in set (... sec)

Project details


Release history Release notifications | RSS feed

This version

0.8.2

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

crash-0.8.2.tar.gz (12.5 kB view details)

Uploaded Source

File details

Details for the file crash-0.8.2.tar.gz.

File metadata

  • Download URL: crash-0.8.2.tar.gz
  • Upload date:
  • Size: 12.5 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No

File hashes

Hashes for crash-0.8.2.tar.gz
Algorithm Hash digest
SHA256 d8ae809ea8603f836c0480c3a8d32499b20f1a05cf16d25a5c7c1916bf3f759d
MD5 771487132955aba5a95f6a19f7c0a0e5
BLAKE2b-256 25a69f187d98407500e0d3443a5f2d16a816a5548160a7829d16087edb65f1bc

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page