db_create_queue

Name of the queue. If not specified or <code>NULL</code>, a
name is generated randomly.

name

What to do with crashed jobs. The default is that
they will <code>"fail"</code> (just like a negative acknowledgement). Another
possibility is <code>"requeue"</code>, in which case they are requeued
immediately, potentially even multiple times. Alternatively it can be
a number, in which case they are requeued at most the specified number
of times.

crash_strategy

The database columns:<ul>
<li>id Id of the message, it is generated automatically by the database.</li>
<li>title The title of the message, can be empty. In the future,
it can be used to filter messages.</li>
<li>message The message, arbitrary text, can be empty.</li>
<li>status Can be:<ul>
<li><code>READY</code>, ready to be consumed</li>
<li><code>WORKING</code>, it is being consumed</li>
<li><code>FAILED</code>, failed.</li>
</ul></li>
<li>requeued How many times the message was requeued.</li>
</ul>

internal

Temporary and permanent message queues for R. Built on top of
'SQLite' databases. 'SQLite' provides locking, and makes it possible
to detect crashed consumers. Crashed jobs can be automatically marked
as "failed", or put in the queue again, potentially a limited number of times.

db_create_queue: Create a queue

Description

Usage

Arguments