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PLAIN login refused: user 'vcac-server_XXXX'- invalid credentials & RabbitMQ Unrecoverable Exception
Last week I was working on 2 such issues where RabbitMQ configuration was messed up. The circumstances which led to these problems were...

Arun Nukula
Oct 30, 2019


"Change Lease" for Multiple Deployments
A Machine blueprint is a standalone blueprint that other architects can reuse as a component in application blueprints, and catalog...

Arun Nukula
Oct 30, 2019


Failed to save workflow schema, vRO HTML5 client exception
One of the major enhancements vRealize Automation 7.6 brings to the table is HTML5 functionality in vRO. To name a few on what it brings...

Arun Nukula
Sep 18, 2019
Multiple/duplicate requests are being requested automatically post submitting a single XaaS bp
Note : Timestamps mentioned below is just an example When the user submits request for the first time on [UTC:2019-08-19 23:49:05,475...

Arun Nukula
Sep 17, 2019


NSX data collection unavailable
In preparation for using NSX network, security, and load balancing capabilities in vRealize Automation , at first we have to create an...

Arun Nukula
Sep 16, 2019


Accessing Custom Groups cause System exception in vRA UI
I was involved in a problem recently where a tenant admin tries accessing custom groups and he encounters a system exception Cause of...

Arun Nukula
Sep 10, 2019


Stale Business Groups show up while using filters on Deployment tab
Came across a bug in version 7.5 where unneeded and unused business groups which no longer exists in vRA , still show up under...

Arun Nukula
Sep 4, 2019
Script to replace ESXi host certificates for version 6.5 & later
Use this script below to replace ESXi 6.5 and later version of host certificates seamlessly When you have vSAN cluster, network partition...

Arun Nukula
Sep 4, 2019


Increasing /storage/log partition size inside a vRealize Automation appliance
Follow below steps to successfully increase existing partition size of /storage/log of a vRealize Automation appliance Pre-Requisites...

Arun Nukula
Aug 1, 2019
The target principal name is incorrect. Cannot generate SSPI context
We recently stumbled upon an issue where database server had to be restored a date where it was working as expected after patching...

Arun Nukula
Jul 26, 2019
Timed out while waiting for Event Broker response
Came across a problem recently where provisioning and reconfiguration of virtual machines through vRealize Automation were failing...

Arun Nukula
Jun 27, 2019
The number of nics you requested are more than specified in the blueprint that was used to provision
Reconfiguring a virtual machine managed by vRealize Automation fails with an exception stating "The data specified within the request is...

Arun Nukula
Jun 26, 2019


After upgrading vRA from 7.5 to 7.6 several services show up as unavailable in the VAMI
After upgrading vRA from 7.5 to 7.6 , following services might show up as unavailable advanced-designer-service - UNAVAILABLE...

Arun Nukula
Jun 26, 2019
Resource not found for the segment 'VirtualMachineExts'
Requests fail during allocation phase with exception catalina.out ( vRA Appliance ) com.vmware.vcac.iaas.service.impl.BaseCompositionRequ...

Arun Nukula
May 17, 2019
A newer version of the product is already installed on this machine
After installing vRA 7.5 HF5, it is not possible to install any additional IAAS components - e.g. proxy agent / DEM. Attempt to launch...

Arun Nukula
May 17, 2019


Shared swap vMotion of a fully reserved VM with swap file fails due to failure to extend swap file
I was trying to migrate a virtual machine which had around 60 GB memory to a host which had no virtual machines registered on it , failed...

Arun Nukula
Mar 29, 2019


Unable to delete a vRO endpoint
Are you trying to delete a vRO endpoint and is it throwing an exception Error Unable to delete a vCO endpoint of type 'AD'. Reason...

Arun Nukula
Mar 29, 2019
Reconfigure actions on a Managed VM when triggered using API / Powershell / Workflow fails
When you trigger a reconfigure request using API / Powershell / Custom Workflow on an environment which was recently patched to any of...

Arun Nukula
Mar 27, 2019


Unable to stop Tomcat instance that was started as a foreground process
I was implementing HF 10 today in one of our environments to fix health broker service which was broken. There were multiple bug w.r.t...

Arun Nukula
Mar 20, 2019
![Endpoint with id [XXXXX-XXXXX-XXXXX-XXXXX] is not found in SQL Server on IAAS endpoint](https://static.wixstatic.com/media/3521e7_af4dc330f1324ba0a66bebd87b7ef716~mv2.png/v1/fill/w_445,h_250,fp_0.50_0.50,q_35,blur_30,enc_avif,quality_auto/3521e7_af4dc330f1324ba0a66bebd87b7ef716~mv2.webp)
![Endpoint with id [XXXXX-XXXXX-XXXXX-XXXXX] is not found in SQL Server on IAAS endpoint](https://static.wixstatic.com/media/3521e7_af4dc330f1324ba0a66bebd87b7ef716~mv2.png/v1/fill/w_306,h_172,fp_0.50_0.50,q_95,enc_avif,quality_auto/3521e7_af4dc330f1324ba0a66bebd87b7ef716~mv2.webp)
Endpoint with id [XXXXX-XXXXX-XXXXX-XXXXX] is not found in SQL Server on IAAS endpoint
Recently, I was looking at a problem where user was unable to save an NSX endpoint When we edit these endpoints and click on "Test...

Arun Nukula
Mar 8, 2019


Selecting a Network Profile unavailable while creating a blueprint
A network profile essentially provides your VM with information such as IP / Netmask / Gateway etc., and vRA then also keeps a record of...

Arun Nukula
Mar 8, 2019


Implementing vRA 7.4 Patch HF8 on top of HF3 ( deep-dive )
There was a requirement for us to work on implementing HF8 on a environment which was running on HF3. I created a run-book to explain...

Arun Nukula
Jan 18, 2019


Docker Containers vs Virtual Machines
Note : Docker Containers are not Virtual Machines What is a Virtual Machine ? Let's explain each layer from the bottom Everything starts...

Arun Nukula
Jan 9, 2019


RabbitMQ in vRealize Automation
To understand what's the role of RabbitmQ in vRealize Automation , first of all let's figure out what's RabbitMQ RabbitMQ It's a...

Arun Nukula
Jan 9, 2019
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