Thứ Tư, 26 tháng 9, 2018

Youtube daily google Sep 26 2018

Today The Search Engine Google is showing a Doodle for Google 20th Birthday.

Google celebrate its 20th birthday worldwide with a beautiful doodle.

Google began in January 1996 as a research project by Larry Page and Sergey Brin when

they were both PhD students at Stanford University in Stanford, California.

While conventional search engines ranked results by counting how many times the search terms

appeared on the page, the two theorized about a better system that analyzed the relationships

among websites.

They called this new technology PageRank; it determined a website's relevance by the

number of pages, and the importance of those pages that linked back to the original site.

Page and Brin originally nicknamed their new search engine "BackRub", because the system

checked backlinks to estimate the importance of a site, Eventually, they changed the name

to Google; the name of the search engine originated from a misspelling of the word "googol", the

number 1 followed by 100 zeros, which was picked to signify that the search engine was

intended to provide large quantities of information.

Originally, Google ran under Stanford University's website, with the domains google.stanford.edu

and z.stanford.edu.

The domain name for Google was registered on September 15, 1997, and the company was

incorporated on September 4, 1998.

For more infomation >> Google 20th Birthday Google Doodle - Duration: 1:30.

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Nota Cientifica: #Google desarrolla algoritmo que detecta el #Cancer de pulmón - Duration: 1:56.

For more infomation >> Nota Cientifica: #Google desarrolla algoritmo que detecta el #Cancer de pulmón - Duration: 1:56.

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Google 20th Birthday Google Doodle - Duration: 2:45.

The Search Engine Google is showing a Video Doodle for celebrating its 20th Birthday .

20 years ago today, two Stanford Ph.D. students launched a new search engine with a bold mission

to organize the world's information and make it universally accessible and useful.

Though much has changed in the intervening years - including now offering Search in more

than 150 languages and over 190 countries - Google is still dedicated to building products

for everyone.

Today's video Doodle takes a stroll down memory lane by exploring popular searches

all over the world throughout the last two decades.

Google's first Doodle is for the Burning Man Festival in 1998.

Since then Google Doodle Team is introducing many innovative things for showing Doodle.

And, I am uploading videos for telling about Google Doodles in this YouTube Channel.

I started doing this for 2010 new year Doodle , and I started giving more attention when

Google showed an animated Doodle of apples falling from Tree for celebrating Newton's

birthday.

Since then I uploaded video for almost all the Global Doodles except few Doodles.

Thanks for watching this Video.

I wish Google a Happy Birthday and would like to thank Google for its products and services

that are helping me in various ways.

For more infomation >> Google 20th Birthday Google Doodle - Duration: 2:45.

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How to fix Google Chrome crash after Windows 10 update 1803 - Duration: 1:39.

Hi, I'm Sami, from Fawzi academy. In this video, I will talk about. Chrome freezes after the Windows 10 April 2018 Update 1803.

Use the Windows Shortcut Keys.

Try to press the shortcut keys Windows logo key + Ctrl + Shift + B simultaneously to wake the screen.

Go to Microsoft fix it. Fix problems that block programs from Microsoft website.

Click Download. Run the program. Follow the instructions to fix the problem. I will provide you with a link to Microsoft website

in the video description area. Go to Microsoft Update Catalog. Download and Install The cumulative update

KB4103721, released for Windows 10 version 1803, includes a fix for Chrome and Cortana freezing issues.

Follow the instructions to fix the problem. Recreate the Chrome Browser Profile.

The corrupted Chrome browser profile could also lead to the Chrome freezes issue, and you could recreate it. Follow this steps.

Restore Your System to an Earlier Version. Follow this steps.

Thank you, for watching Fawzi academy. Please, like. Subscribe, share, this video, and visit, our website, fawziacademy.com.

For more infomation >> How to fix Google Chrome crash after Windows 10 update 1803 - Duration: 1:39.

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Google's 20th Birthday Celebrations - (September 27, 2018) - Duration: 1:53.

Today the Search Engine Google is Celebrating Google's 20th Birthday with latest Google

Doodle Video in Global.

20 years ago today, two Stanford Ph.D. students launched a new search engine with a bold mission

to organize the world's information and make it universally accessible and useful.

Though much has changed in the intervening years - including now offering Search in more

than 150 languages and over 190 countries - Google is still dedicated to building products

for everyone.

Today's video Doodle takes a stroll down memory lane by exploring popular searches

all over the world throughout the last two decades.

So whether you've searched for the status of your favorite object orbiting the sun,

the latest on the world's biggest events, or how to impress on the dance floor.

Why is Google's birthday September 27

The company, founded by Larry Page and Sergey Brin in 1998, traditionally marks its birthday

on the Google homepage on September 27.

However, not even Google seems to really know when it was formed.Sep 26, 2016.

Just know that officially, Google recognizes its birthday as September 27th of 1998.

Google let the world know of its 18th birthday celebration last year on September 27 as it

always does, with the aid of a Google Doodle.

Happy Birthday, Google

Thanks for watching

Please Like , Share , Subscribe and Comment

For more infomation >> Google's 20th Birthday Celebrations - (September 27, 2018) - Duration: 1:53.

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how to get free google play gift card codes-free google play gift card-free google play codes - Duration: 3:10.

google play gift card free

Hey pretty baby am I in your way as you walk down so fast yesterday?

No, I don't

stay

Though I don't put you here to stay

So tell me what you want. Tell me how you

I

Don't

Know

I

Just wanna be with you I just wanna be with you

I just wanna be

Be with your I just wanna dance

You know, you know a little lady said you feel the same good

I don't believe a word you say kind. I don't think a year to stay

No, I don't think you're here to stay

So tell me what you want. Tell me how you wanna I

Just wanna be

I just wanna be with you

I just wanna dance I

Know, you know, don't you know it I feel you liar

Something I'm sorry

Oh

I

Just wanna be with you

I just wanna be with beware. I just wanna dance

My I don't give a damn okay say no, you know, no you know it

For more infomation >> how to get free google play gift card codes-free google play gift card-free google play codes - Duration: 3:10.

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Ex-Google CEO Eric Schmidt predicts 2 internets in 10-15 years - Duration: 1:00.

For more infomation >> Ex-Google CEO Eric Schmidt predicts 2 internets in 10-15 years - Duration: 1:00.

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Je sais pas si t'as vu... Google va tout changer - Duration: 1:51.

For more infomation >> Je sais pas si t'as vu... Google va tout changer - Duration: 1:51.

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Google's 20th Birthday - Duration: 1:38.

What is Google?

What will happen on Y2K?

How do you tie a tie?

What's the most popular sport in the world?

What's the human genome project?

Is it a leap year?

How do you dance?

Is Pluto still a planet?

What is Neko Nabe?

What's the Large Hadron Collider?

Translate "love"

How does autotune work?

The royal wedding

Mayan Prophecy 2012

How do you pronounce "gif"?

What's a selfie?

How do you make avocado toast?

When do the summer games begin?

Show me pictures of cute animals

For more infomation >> Google's 20th Birthday - Duration: 1:38.

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Google Pay To Bank Money Transfer without any charges | Google Pay से Bank खाते में धन हस्तांतरण - Duration: 3:22.

Do you want to Transfer your Money

From Google Pay to Bank Account

Then you are in Right Place

Transfer You money easily and securely

without any Charges

No Need to Add Beneficiary

Let's Jump in to the Content

But Before that my Introduction

Open Google Pay app

This is the Home screen of Google Pay

simple and secure app from Google

If you need any help to create new account in google pay

Then Check description

Now Click on NEW

Here you will get many options

Click on BANK TRANSFER

Enter Bank A/c Number

Re-Enter account Number

Here Enter IFSC Code

Then, Enter Account holder Name

Click On Continue Button

Enter Amount

Now Click on this Arrow Button

You can write a note here

Now Click on this Button

Click On Proceed to Pay

Here enter Your UPI PIN

Finally, Click on This Button

Congratulation !!

we have successfully transfer money

From Google pay to bank account

Without any charges

For more infomation >> Google Pay To Bank Money Transfer without any charges | Google Pay से Bank खाते में धन हस्तांतरण - Duration: 3:22.

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How to Deploy PostreSQL on Google Kubernetes Engine (GKE) - Duration: 8:16.

Hi.

In this demo I want to show you how to install a high availability Postgres database backed

by Portworx and Kubernetes.

Since we're going to use Portworx as the storage back-end, we don't need to configure additional

parameters to ensure high availability of Postgres which means you don't need to create

PostgreSQL as a stateful set or use any other mechanism to achieve high availability.

Since the storage back-end powering our database is already highly available and is redundant,

we automatically achieve HA of our database.

So let's see how to do this.

The very first thing that we're going to do is to create what is called as

a storage class.

If you are familiar with Kubernetes, you know that the storage class is going to associate

a specific storage back-end with our volumes and volume claims that we'll create in the

next step.

This is a storage class specific to Portworx.

While everything looks almost the same as the other storage classes, what is unique

to this configuration is the parameter called replication factor, and in this case we are

mentioning the replication factor as 3, which indicates that the data retained to any of

the Portworx volumes is going to be replicated across three nodes, and this is the magic

that Portworx will bring to achieve high availability of the stateful workloads.

So, let's go ahead and create the storage class.

So this is going to create a storage class called "px-repl3-sc".

Once we have the storage class, the next step is to create a persistent volume claim.

Now again, if you have background of Kubernetes, you know that a PVC is always bound to a PV,

which is a persistent volume.

But thanks to dynamic provisioning, we can straight away associate the PVC with the storage

class, bypassing this step to create the volume first and then creating a volume claim.

We do that by mentioning the storage class and associating it with the previous storage

class that we just created.

We're also making sure that we have at least 1 GB of claim available for the application.

So, let's now create the PVC based on the storage class that we just created.

So this is going to result in 1 GB PVC which is already bound, and this is the concept

of dynamic provisioning where we can bypass the creation of volume before claiming the

volume space.

Alright, with those two in place, the storage class and the PVC, we need to now create the

part of the deployment running pgSQL.

Because pgSQL expects username and password, we are going to follow the best practices

of creating a Kubernetes secret.

For that, I'm going to create a plain manila text file that contains a dummy password we

are going to use for this demo.

We'll ensure that we are getting rid of the newline character.

And then from this file, we are going to create a generic secret, which is called Postgres

pass.

So, when we do "kubectl get secret", we'll see that the password is available as a secret.

Now it's time for us to create the actual deployment of Postgres.

So let's take a closer look at the YAML definition.

This is configured as a deployment with replicas as one.

As I mentioned, even if we are just running this as one instance, thanks to the back-end,

we'll still achieve HA.

Then we are going to use the secret that we just created from the generic secret already

stored within the cluster and in the default name space.

Finally, we are associating this deployment with a volume resulting from the PVC.

So, the claim name is now pointing to "px-postgres-pvc", which was created here, and this is in

turn, pointing to the storage class and this is how the parts are going to be backed by

Portworx storage back-end.

Alright, so let's go ahead and create the Postgres deployment.

This is going to result in the creation of the pod, so let's put this in watch mode.

In just a few seconds, we'll notice that this pod, which is a part of the deployment, will

move into a ready state with status becoming running and that indicates the successful

configuration and deployment of PostgreSQL.

There we go.

Now we have the Postgres pod up and running.

How do we ensure that everything has been configured perfectly well and we are ready

to run our workloads on top of Postgres?

Well, let's grab the volume resulting from the creation of the PVC.

So we'll run this command to basically grab the volume name associated with this PVC.

Verifying this will show us a unique ID, which is bound to the Portworx back-end.

Now, we're going to grab the pod name, which is a part of the Daemon set running

Portworx.

And because we are pointing it to the kube-system namespace with the label key-value beta's

name is equal to Portworx.

This is going to give us the name of the Portworx pod.

On that, we are going to execute a command, which will invoke pxctl, the binary associated

with Portworx, and we're going to inspect the volume that is backing our Postgres database.

So, volume inspect, followed by the volume name that we grabbed from this, and this is

going to show us some pretty interesting details.

So, this is the name of the Portworx volume, and because it is a part of dynamic

provisioning, you will see that it is associated with the PVC, it's of 1 GB size.

Again, based on the PVC that we defined earlier, it is highly available based on three-factor

replication.

It is attached to one of the SSD disks, part of the GCP infrastructure and the GKE cluster.

And because we have set up the replication factor as 3, it's automatically available

on all the three nodes of our cluster.

Replication status is all green, which is up and running.

This is pointing us to a very healthy installation of Portworx, as well as PostgreSQL database.

In the next video, we're going to show how you can achieve high availability

by deleting a running pod and recreating it with all the data intact.

Thanks for watching.

For more infomation >> How to Deploy PostreSQL on Google Kubernetes Engine (GKE) - Duration: 8:16.

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Google News in Telugu| Telugu Tutorials✔️ - Duration: 10:13.

Welcome to my channel

www.teluguvpk123.blogspot.com

www.youtube.com/rsccool

www.facebook.com/rsccool

don't forget to like this video and subscribe for more

Google News

Google business news

Google technology news

Google weather news

Google latest updates

Google political news

Google worldwide news

News Google

Google news app

For more infomation >> Google News in Telugu| Telugu Tutorials✔️ - Duration: 10:13.

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How to Failover PostgreSQL on Google Kubernetes Engine (GKE) - Duration: 7:38.

Hi.

In this demo, I want to show you how to perform a failover of a PostgreSQL database running

within Kubernetes backed by Portworx.

We already have a running Postgres deployment, which is just running one replica set or one

instance of the database.

Even though we are running just one instance, we can achieve failover and high availability

thanks to Portworx.

So let's see how to achieve HA and failover of the single database pod running PostgreSQL

database.

The first thing that we are going to do is to populate our database with some

sample data.

So for that, I'm going to grab the name of the pod by querying on the label that means

app is equal to Postgres.

So, this will get us the only pod that is running PostgreSQL and then we are going to

do an exec to get into the shell of this pod.

Now we are inside the Postgres pod and we can go ahead and execute the psql CLI.

So now we are within the Postgres shell and we can run a bunch of commands to

populate a sample database.

So let's go ahead and create a database called PX Demo.

Now we can verify this with the slash L command, and we notice that PX Demo database is now

created.

Let's quit this and then populate this with some sample data.

So we take help of the pgbench CLI to do that.

So this is going to create about 5 million rows inside the demo database that we just

created.

That's a lot of data.

So let's give it a few seconds and we should have a fully populated sample database.

Alright, let's verify the creation of this by again getting into the psql shell

and querying for the tables.

So you noticed that pgbench has created a set of tables and we can now get the count

of the number of rows from the accounts table, pgbench hyphen accounts.

And that shows about 5 millions rows.

Perfect.

Now, let's quit the pgSQL shell and also get it off the pod.

So what we are now going to do is to do something pretty crazy.

So we're going to cordon off the node that's running the Postgres database, which means

it will avoid scheduling any new pods on it.

So to do that, we need to get the name of the node that is primarily running

our Postgres database.

So when we actually do get pods with this command, we notice that it is running on one

of these nodes so we're going to grab the node name to cordon off the node to avoid

further scheduling.

What I'm trying to achieve here is to emulate a node failure by cordoning it off, and once

we cordon off the node and even going ahead and deleting the pod, we'll not disrupt our

workload because immediately Portworx is going to make sure that the newly created pod is

going to be deployed in one of the nodes that already has the data.

So let's emulate node failure by creating a cordon node.

Before that, let's take a look at the nodes.

You notice that all the three nodes are in ready state.

All of them are capable of scheduling pods and running them.

So we will now go ahead and cordon off the node that is currently running the PostgreSQL

pod.

So now if we do a "kubectl get nodes", you notice that the second node, which is primarily responsible

for running our current pod is cordoned off.

So that means no more pods are going to be scheduled.

Alright.

Now, let's also go ahead and delete the pod.

So for that, I'm going to get the pod name of the Postgres database.

So this is the pod name.

The only pod that we have in the default namespace.

So now what we are going to do is to actually delete this pod.

So "kubectl delete pod".

Now, it is going to delete the pod.

And as soon as that is done, because it's a part of deployment, Kubernetes will automatically

create a new pod because we set the replica set for this deployment as one, and now a

new pod is created, but interestingly this pod is not going to be located on the same

node, where we originally ran the pod.

Now, the node is cordoned off, that means it cannot be scheduled on this anymore instead

it has been scheduled on the third node.

So, with this complete exercise of simulating a node failure followed by deleting

the pod, in normal cases, we might actually face the risk of losing data, but not when

we are running Portworx, so let's check that.

Before that, let me make sure I uncordoned the node.

And now, let's see if our data is still intact.

So we'll now grab the name of the new pod that is scheduled in the third node, and we

will get into the shell of this pod then run psql with PX Demo and then we are going to

check for all the tables.

There we go.

Everything is intact.

And finally, the acid test where we are checking the row count of pgbench accounts and it is

still five million.

Fantastic.

So even after the node failure and pod deletion, the data is intact.

That's because of the replication factor that we created during the storage class and behind

the scenes there is also the magic of STORK, which is the storage orchestrator for Kubernetes

engine, created by Portworx.

It's a custom scheduler which will ensure that the newly created pod is always placed

on the same node that has the data available.

So the combination of STORK combined by the replication factor resulted in the high availability

of the pod even while running a single instance of the workload.

For more infomation >> How to Failover PostgreSQL on Google Kubernetes Engine (GKE) - Duration: 7:38.

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Google Assignment in Blackboard - Duration: 4:42.

So the first step of setting up the Google assignments in your blackboard course is to go over to build content

Go to google assignment

and

You just have to label it. So I'm just going to call this practice

I'm going to have to give it some points. I

Can give it a due date and it's also going to show up in the Grade Center, so I'm going to hit submit

And

then I have to go back to the assignment and click on that assignment and

It's going to ask me to link this course to my Google account and I'm going to click link and link

And then you can see from here I can open up the assignment

But no students have turned it in

So to create a Google assignment after I've linked my course, I need to go back and go down to build content

go down to the Google assignment and

I'm just going to call this essay

Assignment but it can be anything if there's something in my Google

If there's a Google document that I want them to have I'm going to go to the Google document

I'm going to click on the share

But I do want to change it to more to make sure it is anyone with the link in view. I'm

Going to copy that link

I'm going to go back to the Google assignment and I can put click here for a copy of your

assignment and

if I highlight that I

Can go to the link. I'm

Going to ctrl V or paste that link and if I want every kid to have their own copy

I'm going to go back to edit and change edit - copy

and you always want to open in a new window and

hits

Then I'm going to change it to the amount of points

100 points it can be visible to students. I can put a due date here

I can also do adaptive release and have it open and close

I can also track the number of views and then I'm going to hit submit

So when the students go to this

Assignment they're going to click here. They'll get their own copy

but I need to first click on this essay assignment and

Make sure it's linked in to my course

So I can see the assignment is here and that no students have turned it in

I'm logged in as a student and I'm going to click on assignments

I can see that the teacher has made click here for a copy of the assignment. It's gonna force me to make a copy

I'm going to get my own copy and I'm going to edit and interact with this as I need to

When I'm done with a document, I'm going to go back to the assignment

I'm going to click on the black part where it says essay assignment and

click on that

And it's going to ask me to link my account and I'm going to go ahead and click link

And I'll have to do this for every course that's using the blackboard in Google integration

so if I have a math class or a science class, I'll have to click that for each of my courses and

Then I'm going to go over to the right-hand side and click

open assignment and

This is where I can go to the bottom left and add files

There's a essay that I was working on

I'm going to click Add

If I had multiple assignments

I could click add other and I could look for other documents in my Google Drive that I wanted to add to that assignment

But there's only one thing I want to add right now I could also

Create a new document here. I could create a presentation or a Google sheet

But that's all I want to turn in. So I'm going to hit submit and then

I'm going to hit submit and then

I'm going to get a message that says that you've submitted your assignment

For more infomation >> Google Assignment in Blackboard - Duration: 4:42.

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E002 No Name Tech Show: Vermont Schools Shared Digital Collection and Google Voice - Duration: 9:20.

all right we are back for episode two of the No Name podcast or

Tech Show. Right. And we did have some good suggestions okay on Twitter yeah

there were there were two "do you even chrome" which I thought was pretty funny

and then I can't remember the second one but I think we should stick with the

No-Name Tech Show I kind of like not limiting. No you know and we also got one

piece of feedback from a very unreliable source, I don't know if you saw the

comment but it said "expecting more humor" all right. I'm just discounting it just

discounting it. I think there was plenty of good humor in there for people to get

okay? Agree. That's all right, so Sue very interesting naming conventions yes

let's take a look at your, do you want to do you want to tell us what yours

was today? Mine is to walk people through how to access ebooks and

audiobooks that we subscribe to through the Vermont schools shared digital

collection that's the naming convention and it's a new program that we well it's

I don't know how new the program is but it's new for us to subscribe to it and the thing I love about it is that you can read or listen to them on any device, even a Chromebook

Hi everyone and welcome to week 2 of the no-name technology show this week I'm

going to show you how you can access e-books and audiobooks for our library's

subscription to the Vermont schools shared digital collection that's a

mouthful. You can either try and google that or you can go right to our school's

homepage click on the link for library and from there I'm gonna walk you

through the rest of it and in the main menu you'll find a link to finding great

books clicking on that brings up this webpage and scrolling on down you can

see that yes we do have audiobooks on CD which you can search for in our library

catalog but for today I'm gonna walk through how to access the Vermont

school's digital collection clicking on that link brings up this website and in

the drop down menu you select Montpelier High school and you will find once you log in

that you have access to both the shared collection for all Vermont schools as

well as those that I have purchased solely for our school

once you click sign-in brings up a username and password and this is where

students you will log in using your full email address and your lunch ID number

if you don't know what that is just stop by and see me or email me and I'm happy

to help you with that staff I don't know if those accounts are set up just yet

but again just stop by and see me or email me and we can set it up very

quickly and easily so once you log in you're going to click Submit and now you

can see lots of ebooks and audiobooks available to all of the participating

schools in Vermont the icon on this top book that looks like a little book on

the top right here is an e-book and if it's grayed out that means that it's

currently checked out but you can get on a holding waiting list for it

this one is darker so it shows that it's available the little set of headphones

means that it's an audiobook and this one also appears to be available you can

either just browse through all that's here or you can scroll on down there are

collections for this year's Green Mountain Book Award as well as some teen

reads you can also going to the top of the page search by author or title let's

say that you'd like to check out and download Solo mousing over it you can

just click on borrow and since you've already logged in you go straight to

your checkouts if you want to listen to it right now you can just click on

listen and it'll open right in your browser or you can download it if you're

using a smartphone or tablet it would give you the option to download it right

to your device when you finish the book you can go back to this page and click

on return title or it will also automatically get checked back in after

14 days so that's how you can find and access

ebooks and audiobooks through our shared collection stop by and see me if you

have any questions thanks that's very cool! Yeah. Are a lot of students utilizing this?

I've had to actually already stop by one needed a book for a class and then

another student just stopped by and asked how they use it, so I don't know how many are using it yet.

I'm impressed. And it's banned books week so I had to do something with books yeah

absolutely so I I took a leap here this is an old tool it's been around for a

while but people kind of used it when it first came out and then kind of forgot

about it and that's Google Voice so being able to set up a digital phone

number there's a lot that you can do with it and I do kind of an okay job

talking about it but there's more

I'm gonna show you a Google tool that is underutilized and super valuable for

teachers and principals and all sorts of great stuff it's called Google Voice

been around for a while I actually at one point used this as a calling system

for my home phone it's a way to set up a virtual phone number that can be

connected to your phone or your devices and it's a way that you can share a

phone number or a contact source without giving away your personal phone number

or your work phone number or whatever and it's all done through your Google

system so I've set up a Google phone number I connect it to my email account

and there's a couple things I'm going to show you in here so you get voicemail

this is just a voicemail I think confirming that I set up the account

let's see welcome to Google Voice it transcribes the voicemail so that you

can see what was said and it's pretty accurate and pretty good it records

welcome to

Google Voice. Google Voice gives you a single phone

number that rings all your phone saves your voicemail online and

transcribed your voicemail to text other cool features include the ability to

listen in on messages while they're being left block and follow callers and

make cheap international calls we hope you enjoy using Google Voice so there

you go it said it all there so you can set this up so that it rings to your

phones if you want to and when you answer it on your phone it's just like

it's it's just like a regular phone call so I've seen teachers use this as a way

for parents to connect and students to connect you can embed your Google Voice

phone number button on a webpage a website or a blog so that people can

click it make a call right from computer that's the other thing that you can do

with this is you can make phone calls you can type in the name or number these

are two people that are in my contact list so you can do all of these things

right from here and check your messages you can send a message you can send a

text message but let's see what else so I went deep into settings and there is a

ton that you can do with this tool you can set it for time you can set

different greetings you can record the audio you can download the audio you can

transcribe the audio you can get an email every

time somebody leaves the message there's just a lot you can do as a teacher

without exposing your personal contact information it's a way to manage it all

I've seen teachers use this to collect audio responses from students on an

assignment I've seen it as a way to collect frequently asked questions from

parents and respond to them just a way to open communications but manage them

in a way that doesn't impose on your personal devices or your personal

contact information it's a fantastic tool totally underrated totally

underutilized check it out so that's it generally it's just a way like think of

it as a teacher hotline right so the teacher could set it up for a class and

parents and students and whatever can use that to leave messages I have seen

teachers that do podcasts and things like that collect audio that way for

projects but there I know that for some people giving away their phone number or

information can be a concern this is a way to manage it connected totally

to your work that's pretty cool yep let's see that coming in handy and free

and you can text from your computer text next you know back and forth to things

like that all from your Google account so that you're not using your personal

data or any of that stuff

not too bad yeah and I'm not going to give anyone mine just saying okay so

that's it so we have two tips maybe next time we'll include a joke of the week

for the one person that said there needs to be more humor but I really think we

did okay without it we just yeah I agree

For more infomation >> E002 No Name Tech Show: Vermont Schools Shared Digital Collection and Google Voice - Duration: 9:20.

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How to Expand PostgreSQL Persistent Volume with No Downtime on Google Kubernetes Engine (GKE) - Duration: 6:17.

Hi.

In this demo, I want to show you how to perform storage ops on a Portworx cluster running

a PostgreSQL database workload.

We are going to expand the volume backing our PostgreSQL database and we're gonna do

that on the fly without any downtime.

Before we get started, let's inspect the current environment.

So we are going to look at the volumes created by Portworx.

So I'm going to grab the PVC name and the volume associated with it.

So when we look at the volume, this is created dynamically by Portworx based on the PVC that

we created in the previous demo.

Then I'm going to execute pxctl command available within the Portworx pods that are deployed

as a part of the Daemon set.

So when we run "pxctl volume inspect" to inspect the volume created through our PVC, we'll

get to know the current size and the configuration.

So here, we have 1 GB volume with a replication factor set to three and currently

about 863 MB is already consumed.

What I'm going to do now is to run a set of commands which will ingest more data into

our PostgreSQL database, which will result in shortage of space, and that will in turn

crash our database because of lack of space.

Then we are going to see how we can use pxctl to dynamically expand the size to double it

to expand the volume on the fly.

So let's get started.

Before we do anything further, we're going to grab the pod name, running the Postgres

database.

So, in fact, we only have one pod in our default namespace so that is the pod responsible for

running Postgres database.

And then we are going to get into the shell of this, then invoke pgbench command to ingest

large amounts of data.

So, this is going to ingest data into the database, which is already at the brim of

its storage space.

We have noticed that we created 1 GB of volume and we are consuming about 800 MB of that

volume and now we are actually trying to ingest a pretty large data set and this sure result

in a failure because of the unavailability of the disk space.

And there we go, this is a very common problem faced by DBS, and if we carefully inspect

the errors, it shows that it couldn't write to file, no space left on device.

I'm not surprised because this is how Postgres will fail when it encounters issues with available

storage space.

Now, let's go ahead and inspect the volume.

So again, we are going to run pxctl and this is going to show us the available volume space.

And this is red, indicating that it's almost consuming 944 MB or of 1 GB space.

Now, this is not a good sign, particularly when you are running a production system.

So let's see how we can expand this file system with no downtime and no disruption to the

production workload.

So to do that, we are going to SSH into the node.

So I'm going to grab the node on which we are running Postgres database so this will

point us to the node from the available cluster.

So "kubectl get nodes", looks like the third node is where our pod is running, so we will

SSH into that node using the standard SSH command or cloud provider specific command.

So as soon as we SSH into the node, we'll try to grab the volume name associated with

our pod.

So now when we actually run this, it shows this is the volume that Postgres

is currently running on, created by Portworx.

Now, let's inspect this volume with pxctl command.

And as we have seen, it's almost at the brim of the storage space.

We cannot ingest any more data because we are running out of space.

Now I'm going to invoke one command, which is update followed by the volume name followed

by size equal to two, which means we are now expanding this volume from 1 GB to 2 GB.

So let's go ahead and run this.

Now we noticed that Portworx is responding with volume update, successful for volume,

volume name or volume number, and this will ensure that our volume is now 2 GB and everything

is back in green because we have plenty of space to ingest additional data.

We can actually increase the size of this volume to any factor provided you

have the SSD backend or the cloud-specific storage backend attached to your volume, to

your node.

And you can dynamically, on the fly, expand the storage.

So, that was a storage operation performed on Portworx cluster running a PostgreSQL database.

Thanks for watching.

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