Mongo DB for Administrators
language: EN
WEBVTT
When we say date somebody who is kind, we mean somebody who is kind.
on 2025-01-29
language: EN
WEBVTT
this command that I want to use.
And so, it goes in config.
new state configuration replicate this
abled out state config pre-start
that it's not failing at any point
doesn't show the error that it's failing
let's do a proof
yeah that's what I want to try and do
interesting
yeah, continue with it
let me try it on my machine and see
yes, 7, shutting down
hold on
let me go to your machine
I'm on your machine
it will definitely won't connect
go back to the instruction
so you created the folders
but did you run starting of the config servers
because you still need to do this part
to start those config servers
on the specific port
then you can try and log into it
what I see you just created
it's just the directors that you created so far
yeah
yeah
yeah
so you see it has started
now you can do that mongo sh
port something something yes
then now you are connected to one of the replicas
the config servers
and then you can now initiate the
the config server
and then you can now initiate the
replica set now
yeah
alright cool
is that is it faith what did you break
okay
please make your
what do you call this
your terminal bigger
okay
just go up a bit
no no no
just bring your screen up a bit
it doesn't go up
so mongo server that
create the folder then you didn't
and
just go back to your just minimize
make your terminal smaller
and then go back to
thingy
so shards that
go up a bit
your own number
you are doing shards now did you do this and
it's all good
this is yes
yes
then you did number 3
that's where you are now
create the directors first
so just copy that
and then
just paste that
enter
now go back and then
copy the command to create
the
to start the config servers
so the next one is creation of the config servers
mhm
then you
now you go to the next one
I think you are going to log in to one
of the one that's got port 27019
and then
you initiate the
replicas replica set
no problem
sorry guys I'll be with you just now
mhm
sorry
I'm back guys
hahaha
yes
ok
let's see
27010
let me
take over your screen quickly
just want to check something quickly
I'm going to share your screen
your mongo s is not running
I don't see mongo s here
so your mongo s is not running
so
just go back to your github
repo the instruction
so what you need
to sort out just hold on
I'll show you
so what you need to run
is
s1
right
then we should have
running one
and then
net start minus ntlp
your mongo s is
now running
which means you can
now mongo s
edge into that
cool
yeah
ok
I've shared it
let's go up a little
mongo d
dash dash replica set
put
ok hold on
hold on
hold on
ok
so start mongo d
instant dash dash 3 replica set
mongo d
dot dot
ok
so it's called
my replica set
now me being me
this is what I'll do
I'll come here and do this
is it a replica set for a shard
or for
a thingy
or for the config server
are you sure?
is it a config server or a shard?
you can create
a config server
but you've got a config server already
so rather create this as shards
right? and when you create
them as a replica set of a shard
not a config server
you can always come
to this
and then
come here
what was your
db path again?
it was
db path
and then
data
and then other s1
right?
and you want to change
this to 41
and you want to
shard server my replica set
and we were calling
it my replica set
we can always do this
now a logic thinking would be
right?
what do you call this? am I creating a shard
or am I creating a server?
if you fork it does it work? it doesn't work
right? then
you come there, control z
and then now you need to fork it
you need to give it the log path and then the
dash dash fork
wait I think I've not changed
I've not changed the port also
right? 42
yes
42, let's try it
again
see if it works, it won't work
so you need that dash dash fork
you see
you need it and then
here
you can come, change it to
3 and then you come
change it here to
3 and then enter
it creates that now
you now need to make
the first one, 2041
the primary for this replica set
you log into that primary
you initiate the cluster
from there, the replica set cluster
from there
the same way
the same way that
you did it on the sharding
what you call this? the sharding
exercise is more or less
the same steps
now the idea
behind this was adding the elements
like your fork and
what not, that's where
you would need to think
through because remember
when it comes into the real world
not everything is serpent stone
you would find that you need to set up 3 replicas
3 different replicas
now when you need to
define 3 different
replicas, one you need to
decide the config server
the replica for the config server
and now you need to decide
am I doing the shard or am I doing
a config server? now you've done the
config server and then you need to
do the shard server
the replica for the shards, that's when you now
take the step to actually
do the shard server, the difference
if you noticed
it is that
this part here
it's either you're telling it
to be a shard server or to be a config server
makes sense?
the explaining is good
the
implementation is what's going to be interesting
the explanation
you did it right, so firstly
you need to create folders
after you create folders
which is your path
where your db path
where your
replica set is going to be writing to
the second thing is
they gave you a very short
command
which is
this one
but this won't work
what would work is
you need to tell it what is it
is it a config server or
it is a shard server
config server you already have it
so in essence you're now creating
a shard server
a replica set for shard server
now that's where this command
now kicks in
right
in full because it's already there
you already have it
instead of you having to worry in your mind
that one will fail
all you need to do is come and copy this command
right
one of it and then change
the name of the replica set because remember
it's written my replica set if I'm not mistaken
change that name
change the port because
already this one is in use even the ones that are
there they are already in use so you change
that you change that and then you change the path
to where you want your shard
to be writing to and then you run
that command then you'll be able to create
what's that
the command
can I use the bathroom quickly one second
and
my phone
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on 2025-01-29
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