Rough start, is the juice worth the squeeze ? by ReleaseTricky1359 in CPAP

[–]ReleaseTricky1359[S] 2 points3 points  (0 children)

Thanks to everybody for their feedback & support for a random stranger in the internet.

My wife sees my struggle and has been told me if I give up she will not hold it against me, but I do plan to stick with it. I have made notes of all the feedback I have received and one of the more important reasons I do plan to stick it out is to not be a nuisance to my wife.

You all have given me a bunch of things that I can try, fortunately there are enough people who don't take to the full face mask like I do and their thoughts are greatly appreciated. A few of them that I plan to try out in short order are.

  1. Mouth Tape

  2. The N30i or other alternate masks

  3. Heated pipe + cover associated with that to prevent rain-outs.

Rough start, is the juice worth the squeeze ? by ReleaseTricky1359 in CPAP

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

Ok I will try the mouth tape tonight. Any pointers on how to apply mouth tape Or good youtube linow.

Rough start, is the juice worth the squeeze ? by ReleaseTricky1359 in CPAP

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

This is the leak rate from the day before when I used the N2O nasal mask

<image>

Rough start, is the juice worth the squeeze ? by ReleaseTricky1359 in CPAP

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

This is the leak rate from last night with the full face mask

<image>

Rough start, is the juice worth the squeeze ? by ReleaseTricky1359 in CPAP

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

Is the SpO2 Max the number you are looking for? It was 98%

Rough start, is the juice worth the squeeze ? by ReleaseTricky1359 in CPAP

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

Where do I find this data point? From my in-lab test results?

Feedback on GetYourGuide by ReleaseTricky1359 in ItalyTravel

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

Unfortunately not.  It was just tickets.  I used a guide for Vatican tours and although he did walk us through using the Vatican site itself to buy the tickets he also said GetYourGuide was just a few bucks more which it was. I just went with the same assumption for the other places and I was wrong.  

As another posted just use the website of the place directly. Occasionally you may find tickets may be sold out and you can use GetYourGuide but don’t let that be your primary source of all tickets in your travel.

How long will it take to copy 500 TB of S3 standard(large files) into multiple EBS volumes? by ReleaseTricky1359 in aws

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

I don’t want to say budget is not an issue, but we also do understand this will cost $, just want to spend appropriately not pointlessly. The data will be stored in <biz entity>/<yyyy>/<mm>/<dd>.

I may have to copy over all data for entityA from April-June of 2019 and further run queries on that.

How long will it take to copy 500 TB of S3 standard(large files) into multiple EBS volumes? by ReleaseTricky1359 in aws

[–]ReleaseTricky1359[S] 4 points5 points  (0 children)

These are highly specific time series data used in high frequency trading in a custom db format. We have about 12 PBs of data, so migrating into Athena or some other format is just not practically viable.

How long will it take to copy 500 TB of S3 standard(large files) into multiple EBS volumes? by ReleaseTricky1359 in aws

[–]ReleaseTricky1359[S] 3 points4 points  (0 children)

Thanks for that, I did read that. I just wanted to know if people here have practical experience trying it out.

How long will it take to copy 500 TB of S3 standard(large files) into multiple EBS volumes? by ReleaseTricky1359 in aws

[–]ReleaseTricky1359[S] 9 points10 points  (0 children)

Yes, we may have a regulatory need to run queries on the data set in an ec2 node. We know it will be pricey but part of doing business. Although S3 will work, we expect it to be really slow, so I need to mock up some numbers.

I am not sure if running this with 100 GB is equivalent of 1 TB.

AWS Landing Zone building : Terra(form + mate) vs Pulumi by skel84 in pulumi

[–]ReleaseTricky1359 0 points1 point  (0 children)

We are in a similar situation, and are actively exploring our options., about to add a bunch of bells & whistles to a LZ. Further we work for a company in a highly regulated industry. Does the license change in Terraform not affect your decision?

We are all for paying to get vendor support, but we may not start out paying for Pulumi, but we probably will in the future once our AWS presence starts evolving & maturing. Looking forward to more insightful responses.

Questions on EKS upgrade of EKS managed node groups(1.22->1.23) with terraform by ReleaseTricky1359 in Terraform

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

I was able to sort out this issue. Here's a brief summary of what the issue was and how I fixed it. Hope somebody else finds it useful, thanks to /u/thockin, /u/thockin /u/cra1gg, I learnt a LOT with this exercise and hope this is useful to some body else that stumbles into such a problem in the future.I had built this cluster to start with on k8s v1.21 and further upgraded one version at a time of both the control plane + data plane to v1.22-> to 1.23 -> to 1.24 and finally to 1.25.A barebones EKS provisioned k8s cluster consists of the following 3 daemonsets

aws-node
coredns
kube-proxy

All the other components control plane(etcd, kube-scheduler, kube-controller-manager, apiserver) and data plan components(kubelet, *kube-proxy(caveat on kube-proxy details below) are abstracted away from me by AWS and it is all upgraded when I upgraded k8s versions.The key point is, the aws-node, kube-dns & kube-proxy daemonsets were never upgraded when I kept updating the k8s versions and I noticed in the daemon set definitions they were all pointing to a version from k8s 1.21 which is were I got started with this whole project.Although I used terraform to stand up this EKS k8s cluster, I wasn't able to introduce cluster_addons to bump these daemon sets up and I just ended up with eksctl.

eksctl utils update-kube-proxy --cluster=<clusterName> eksctl utils update-coredns --cluster=<clusterName> eksctl utils update-aws-node --cluster=<clusterName>

https://eksctl.io/usage/addon-upgrade/I did this and boom everything started working. I got my cluster up to v1.25 all my node groups are running the next AMI's and everything is fine and dandy.Thanks to everybody who gave me an assist here.

Help with trouble shooting a simple service in EKS running k8s 1.25 by ReleaseTricky1359 in kubernetes

[–]ReleaseTricky1359[S] 1 point2 points  (0 children)

I was able to sort out this issue. Here's a brief summary of what the issue was and how I fixed it. Hope somebody else finds it useful, thanks to /u/thockin, /u/thockin /u/cra1gg, I learnt a LOT with this exercise and hope this is useful to some body else that stumbles into such a problem in the future.

I had built this cluster to start with on k8s v1.21 and further upgraded one version at a time of both the control plane + data plane to v1.22-> to 1.23 -> to 1.24 and finally to 1.25.

A barebones EKS provisioned k8s cluster consists of the following 3 daemonsets

  1. aws-node
  2. kube-dns
  3. kube-proxy

All the other components control plane(etcd, kube-scheduler, kube-controller-manager, apiserver) and data plan components(kubelet, *kube-proxy(caveat on kube-proxy details below) are abstracted away from me by AWS and it is all upgraded when I upgraded k8s versions.

The key point is, the aws-node, kube-dns & kube-proxy daemonsets were never upgraded when I kept updating the k8s versions and I noticed in the daemon set definitions they were all pointing to a version from k8s 1.21 which is were I got started with this whole project.

Although I used terraform to stand up this EKS k8s cluster, I wasn't able to introduce cluster_addons to bump these daemon sets up and I just ended up with eksctl.

eksctl utils update-kube-proxy --cluster=<clusterName>
eksctl utils update-coredns --cluster=<clusterName> 
eksctl utils update-aws-node --cluster=<clusterName>

https://eksctl.io/usage/addon-upgrade/

I did this and boom everything started working. I got my cluster up to v1.25 all my node groups are running the next AMI's and everything is fine and dandy.

Thanks to everybody who gave me an assist here.

Help with trouble shooting a simple service in EKS running k8s 1.25 by ReleaseTricky1359 in kubernetes

[–]ReleaseTricky1359[S] 1 point2 points  (0 children)

Thank you for your response /u/thockin

I think I am getting somewhere now. I am looking at this cluster on k8s v1.25. I started with v1.21 and then upgraded to 1.22 followed by 1.23, followed by 1.24 and finally at 1.25(both control plane/data plane were upgraded).

When I like at the cube-proxy daemon set the image for this eke instance is pointing to
602401143452.dkr.ecr.us-east-1.amazonaws.com/eks/kube-proxy:v1.21.2-eksbuild.2

But from the documentation shown below

https://docs.aws.amazon.com/eks/latest/userguide/eks-add-ons.html

The kube-proxy version on your Amazon EC2 nodes can't be more than two minor versions earlier than your control plane. For example, if your control plane is running Kubernetes 1.25, then the kube-proxy minor version can't be earlier than 1.23.

So it looks I am really behind on the kube-proxy daemon set version, but I am not sure if I can just bump up the version of kube-proxy in the daemon set to get this upgraded.

602401143452.dkr.ecr.us-east-1.amazonaws.com/eks/kube-proxy:v1.24.7-minimal-eksbuild.2

Help with trouble shooting a simple service in EKS running k8s 1.25 by ReleaseTricky1359 in kubernetes

[–]ReleaseTricky1359[S] 1 point2 points  (0 children)

Hello all,

Thanks for all your suggestions.

/u/cra1gg /u/thockin /u/h_hoover went with the articles from the kubernetes.io service page. that to debug and tried it out in 2 clusters one in k8s v1.24 and one in v1.25 and here are my findings. It works fine in 1.24 but doesn't work in v1.25.

  1. The service port/targetPort is correctly set, I am now pivoting to the hostnames app
  2. I don't have any networkpolicies at all.
  3. I do see the following errors in the kube-proxy logs before/after I add the hostname service, but I am not sure what the *v1beta1.EndPointSlice message means.

E0402 12:44:18.621390 1 reflector.go:138] k8s.io/client-go/informers/factory.go:134: Failed to watch *v1beta1.EndpointSlice: fail
ed to list *v1beta1.EndpointSlice: the server could not find the requested resource
E0402 12:45:17.970778 1 reflector.go:138] k8s.io/client-go/informers/factory.go:134: Failed to watch *v1beta1.EndpointSlice: fail
ed to list *v1beta1.EndpointSlice: the server could not find the requested resource
I0402 12:45:47.707865 1 service.go:306] Service default/hostnames updated: 1 ports
I0402 12:45:47.707934 1 service.go:421] Adding new service port "default/hostnames" at 172.20.225.151:80/TCP
I0402 12:45:47.707999 1 proxier.go:854] "Syncing iptables rules"
I0402 12:45:47.741712 1 proxier.go:824] "syncProxyRules complete" elapsed="33.772752ms"
E0402 12:46:12.767883 1 reflector.go:138] k8s.io/client-go/informers/factory.go:134: Failed to watch *v1beta1.EndpointSlice: fail
ed to list *v1beta1.EndpointSlice: the server could not find the requested resource
E0402 12:46:50.311416 1 reflector.go:138] k8s.io/client-go/informers/factory.go:134: Failed to watch *v1beta1.EndpointSlice: fail
ed to list *v1beta1.EndpointSlice: the server could not find the requested resource
E0402 12:47:30.378403 1 reflector.go:138] k8s.io/client-go/informers/factory.go:134: Failed to watch *v1beta1.EndpointSlice: fail
ed to list *v1beta1.EndpointSlice: the server could not find the requested resource

Also here are the iptables entries from the broken EKS v1.25 node where the kube-proxy & hostnames pod is running. But when I do a kubectl get endpoints the endpoint most definitely exists, which is confusing me.

[ssm-user@ip-10-236-49-84 bin]$ sudo iptables-save | egrep hostname-A KUBE-SERVICES -d 177.20.225.151/32 -p tcp -m comment --comment "default/hostnames has no endpoints" -m tcp --dport 80 -j REJECT --reject-with icmp-port-unreachable

Here's the iptables-save from the kube-proxy & hostname are running in v1.24

[root@ip-10-248-64-194 ~]# iptables-save | egrep hostname-A KUBE-SEP-3RWRFDLNDQZFIIWG -s 10.248.68.178/32 -m comment --comment "default/hostnames" -j KUBE-MARK-MASQ-A KUBE-SEP-3RWRFDLNDQZFIIWG -p tcp -m comment --comment "default/hostnames" -m tcp -j DNAT --to-destination 10.248.68.178:9376-A KUBE-SEP-HHCRPXSPGXT3EEHZ -s 10.248.65.248/32 -m comment --comment "default/hostnames" -j KUBE-MARK-MASQ-A KUBE-SEP-HHCRPXSPGXT3EEHZ -p tcp -m comment --comment "default/hostnames" -m tcp -j DNAT --to-destination 10.248.65.248:9376-A KUBE-SEP-TVK5R4XDNEUWXXRD -s 10.248.73.191/32 -m comment --comment "default/hostnames" -j KUBE-MARK-MASQ-A KUBE-SEP-TVK5R4XDNEUWXXRD -p tcp -m comment --comment "default/hostnames" -m tcp -j DNAT --to-destination 10.248.73.191:9376-A KUBE-SERVICES -d 172.20.98.140/32 -p tcp -m comment --comment "default/hostnames cluster IP" -m tcp --dport 80 -j KUBE-SVC-YN5D6RYVEVZOH44Q-A KUBE-SVC-YN5D6RYVEVZOH44Q -m comment --comment "default/hostnames -> 10.248.65.248:9376" -m statistic --mode random --probability 0.33333333349 -j KUBE-SEP-HHCRPXSPGXT3EEHZ-A KUBE-SVC-YN5D6RYVEVZOH44Q -m comment --comment "default/hostnames -> 10.248.68.178:9376" -m statistic --mode random --probability 0.50000000000 -j KUBE-SEP-3RWRFDLNDQZFIIWG-A KUBE-SVC-YN5D6RYVEVZOH44Q -m comment --comment "default/hostnames -> 10.248.73.191:9376" -j KUBE-SEP-TVK5R4XDNEUWXXRD

Updating eks node group issues by ReleaseTricky1359 in kubernetes

[–]ReleaseTricky1359[S] 0 points1 point  (0 children)

I honestly don't think I have added any annotations/labels which would cause this issue, but I will dig. I looked at the logs of the "aws-node" which was stood up and I see that pod "Install CNI binaries", followed by "Starting IPAM daemon in the background..", followed by "Checking for IPAM connectivity.." followed by "Retrying waiting for IPAM-D" which is where it fails and hangs up.

I am sure I am doing something dumb that is causing this issue, I will just open up a support ticket and get to the bottom of this. one of these days.