Skip to main content

Using Elastic File System for Out-Scaled Deployers

Image
By

In a scaled-out scenario for Content Delivery Deployers, it is possible to setup a shared file system as the Binary Storage medium for incoming transport packages.

The Deployer Receiver writes these transport package zip files into the Binary Storage folder. Then it is up to the Deployer Workers to read these zip files as they deployer/underploy the content.

Below, we present the configurations for an AWS Elastic File System (EFS) acting as storage medium for transport packages.

Start by simply creating an EFS in AWS console. This whole step might take you 5 minutes :)



AWS is going to generate a hostname where this file system is available and it will give instructions on how to mount it in your server.

For example, in Linux CentOS, one can mount an FS using the mount command. The following command will mount the EFS drive under folder /efs01 on the current server:
sudo mount -v -t nfs4 -o nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2 fs-a17668.efs.eu-west-1.amazonaws.com:/ /efs01


Another way of performing permanent mounts, is to add the following line to file /etc/fstab:
fs-a17668.efs.eu-west-1.amazonaws.com:/ /efs01 nfs4 nfsvers=4.1,rsize=1048576,wsize=1048576,hard,timeo=600,retrans=2,_netdev 0 0

Once mounted, we can verify the EFS drive state issuing the following command:

mount | grep efs01

 The response should look something like this:

fs-a17668.efs.eu-west-1.amazonaws.com:/ on /efs01 type nfs4 (rw,relatime,vers=4.1,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=10.10.2.173,local_lock=none,addr=10.10.2.145,_netdev)

At this moment, the EFS drive is ready and we can configure it in our deployer-conf.xml:
    <BinaryStorage Id="PackageStorage" Adapter="FileSystem">

        <Property Name="Path" Value="/efs01/deployer-queues"/>
    </BinaryStorage>

The same BinaryStorage node must be present on the Deployer Receiver as well as on all Deployer Workers.



Labels:

Comments

Post a Comment

Popular posts from this blog

Running sp_updatestats on AWS RDS database

By
Part of the maintenance tasks that I perform on a MSSQL Content Manager database is to run stored procedure sp_updatestats . exec sp_updatestats However, that is not supported on an AWS RDS instance. The error message below indicates that only the sa  account can perform this: Msg 15247 , Level 16 , State 1 , Procedure sp_updatestats, Line 15 [Batch Start Line 0 ] User does not have permission to perform this action. Instead there are several posts that suggest using UPDATE STATISTICS instead: https://dba.stackexchange.com/questions/145982/sp-updatestats-vs-update-statistics I stumbled upon the following post from 2008 (!!!), https://social.msdn.microsoft.com/Forums/sqlserver/en-US/186e3db0-fe37-4c31-b017-8e7c24d19697/spupdatestats-fails-to-run-with-permission-error-under-dbopriveleged-user , which describes a way to wrap the call to sp_updatestats and execute it under a different user: create procedure dbo.sp_updstats with execute as 'dbo' as...
1 comment
Read more

I Have Gone Dark

By Unknown
Maybe it's the Holidays, but my mood has gone pretty dark. That is, regarding the look and feel of my computer and Tridion CME, of course. What I did was to dim the lights on the operating system, so I installed Placebo themes for Windows 7 . I went for the Ashtray look -- great name :) My VM looks now like this: But, once you change the theme on Windows, you should 'match' the theme of your applications. Some skin easily, some not. The Office suite has an in-built scheme, which can be set to Black , but it doesn't actually dim the ribbon tool bars -- it looks quite weird. Yahoo Messenger is skinnable, but you can't change the big white panels where you actually 'chat'. Skype is not skinnable at all. For Chrome, there are plenty of grey themes. Now i'm using Pro Grey . But then I got into changing the theme of websites. While very few offer skinnable interfaces (as GMail does), I had to find a way to darken the websites... Enter Stylish -- a pl...
4 comments
Read more

REL Standard Tag Library

By
The RSTL is a library of REL tags providing standard functionality such as iterating collections, conditionals, imports, assignments, XML XSLT transformations, formatting dates, etc. RSTL distributable is available on my Google Code page under  REL Standard Tag Library . Always use the latest JAR . This post describes each RSTL tag in the library explaining its functionality, attributes and providing examples. For understanding the way expressions are evaluated, please read my post about the  Expression Language used by REL Standard Tag Library . <c:choose> / <c:when> / <c:otherwise> Syntax:     <c:choose>         <c:when test="expr1">             Do something         </c:when>         <c:when test="expr2">             Do something else         </c:when...
2 comments
Read more