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Questions tagged [disaster-recovery]

This tag should only be used for **programming questions** that relate to the recovery of data or services in the event of a disaster situation. Non-programming questions are OFF-TOPIC.

This tag should only be used for programming questions that relate to the recovery of data in the event of a disaster situation.

Any non-programming disaster recovery questions are not on-topic, and may be more appropriate on Server Fault.

277 questions
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Disaster recovery for files on Amazon S3?

We outgrew the disc space on our server some time ago, so I made the decision to move the majority of our user generated content onto Amazon S3. Obvious benefits in saving space, reducing bandwidth cost and spreading requests away from our server…
Jon M
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1 answer

Is Azure Log Analytics and App Insights Resilient to DataCenter Failure within an Azure Region

Is app insights and log analytics redundant within a given Azure region (i.e. East US)? In other words, if a single DC within East US goes down, will App Insights and Log Analytics continue to function? If yes, can you provide a link proving this?…
Steve L.
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4
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2 answers

AWS RDS disaster recovery using cross-account

We are running AWS RDS PostgreSQL, with daily automatic snapshots, encrypted by AWS managed KMS key. My objective is to minimize risks and data loss, in case when main AWS account (running RDS) got compromised or RDS deleted/damaged in some…
mva
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4
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3 answers

Run a SQL command in the event my connection is broken? (SQL Server)

Here's the sequence of events my hypothetical program makes... Open a connection to server. Run an UPDATE command. Go off and do something that might take a significant amount of time. Run another UPDATE that reverses the change in step 2. Close…
billpg
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4
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1 answer

Creating a Backup of AWS account configurations

I would like to create a Backup of my whole AWS account. I don't have a proper IaaS setup - did almost all of configurations manually using the AWS console. For now I am looking for a solution that just snapshots all my AWS services configurations…
r0bs
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2 answers

How to solve git conflicts by having only the conflict files?

I had a highly problematic git merging and my repo has now a little bit of trouble. Actually, I have a lot of files seeming so: <<<<<<< HEAD ...version1... ======= ...version2... >>>>>>> As we know, this is the normal behaviour in…
pho
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2 answers

Mysql Disable trigger during database recovery

I need to recover a database with a data-only DB dump (made only of "insert"). I don't want to run triggers during this recovery, how can I do?
Tobia
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4
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1 answer

Configuring Apache Cassandra for Disaster Recovery

How do you configure Apache Cassandra to allow for disaster recovery, to allow for one of two data-centres to fail? The DataStax documentation talks about using a replication strategy that ensures at least one replication is written to each of your…
Raedwald
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2 answers

Downloading very large number of files from S3

I would like to setup a Disaster Recovery copy for an s3 bucket with ~2 million files. This does not have to be automated since we trust Amazon's promise for high reliability, we have enabled versioning and setup MFA for deleting the bucket…
webgr
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6 answers

High Availability and Disaster Recovery Software AntiPatterns

If you had to audit a Java application for worst-practices when it comes to high-availability and disaster recovery, you would probably look for hardcoded IP addresses and suboptimal caching of bind handles. What else should be considered?
McGovernTheory
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3
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1 answer

AWS DynamoDB streams: Can I keep records for longer than 24 hours?

I have a dynamoDB stream and lambda trigger for a table. The lambda trigger basically sync dynamoDB table to DocumentDB. What if, DocumentDB is down for more than 24 hours. How can I put back the all the activity(put, delete, update) happened in…
Avadh Gupta
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1 answer

Configure disaster recovery and automatic failover for Azure Key vault?

We have our Azure key vault provisioned in East US and our hot-stand by region is West US. Does it support Geo-Replication? How do I configure the Azure Key vault to support the disaster recovery with automatic failover? Would it impact the…
One Developer
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1 answer

How to backup a recoverable Cognito user pool?

Does anyone have recommendations or best practices on how to backup a recoverable Cognito user pool? I'm using nodejs serverless to create a CloudFormation with all the assets, including the Cognito setup. I'm looking for a way to export or save a…
dotteddice
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0 answers

Why should an HDFS cluster not be stretched across DCs?

It's easy to find well regarded references stating that HDFS should not be stretched across data centers [1], while Kafka should be stretched [2]. What specific issues make HDFS ill-suited to being stretched? I'm considering stretching HDFS across…
Paul Carey
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3
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1 answer

is it possible to boot an Azure VM with a different bootable iso?

just for a hypothetical case: is it possible to boot a VM in Azure with an ISO file and a different OS? Eg. I have a Windows Server 2016 and want to boot this VM with a Linux? For instance if the MBR is destroyed or other issues that block the VM…
Joe Platano
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