How to unistall dhis2 instance

Support - Assistance technique
1

Dear All,
Please can anyone help give me the steps how to uninstall an instance
in dhis2.

···

--
Regards,

Gerald

2

You can simply remove the war file and the directory from your servlet container and drop the database.

···

On Jun 15, 2015, at 8:08 PM, gerald thomas <gerald17006@gmail.com> wrote:

Dear All,
Please can anyone help give me the steps how to uninstall an instance
in dhis2.

--
Regards,

Gerald

_______________________________________________
Mailing list: DHIS 2 developers in Launchpad
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3

Dear Dan,

When I drop the database, the role for such database is still there; but that can be removed also. Now, if I try to create that instance again it will say instance already created. So how can remove and create everything from scratch.

Please remember I will the same instance name.

Regards,

Gerald

···

On 16 Jun 2015 00:57, “Dan Cocos” dcocos@baosystems.com wrote:

You can simply remove the war file and the directory from your servlet container and drop the database.

On Jun 15, 2015, at 8:08 PM, gerald thomas gerald17006@gmail.com wrote:

Dear All,

Please can anyone help give me the steps how to uninstall an instance

in dhis2.

–

Regards,

Gerald

Mailing list: https://launchpad.net/~dhis2-devs

Post to : dhis2-devs@lists.launchpad.net

Unsubscribe : https://launchpad.net/~dhis2-devs

More help : https://help.launchpad.net/ListHelp

4

Only the DHIS2 or all the dependancies (TOMCAT, PostGres)?

···

On 6/16/15, 3:08 AM, "gerald thomas" <gerald17006@gmail.com> wrote:

Dear All,
Please can anyone help give me the steps how to uninstall an instance
in dhis2.

--
Regards,

Gerald

_______________________________________________
Mailing list: DHIS 2 Users in Launchpad
Post to : dhis2-users@lists.launchpad.net
Unsubscribe : DHIS 2 Users in Launchpad
More help : https://help.launchpad.net/ListHelp

5

Hi Gerald

I think you neglected to mention you are using dhis2-tools to create
this instance. When you run 'dhis2-instance-create myinstance' a few
things happen:
1. a new user called myinstance is created with a home dir of
/var/lib/dhis2/myinstance
2. a new database role called myinstance is created; and
3. a new database called myinstance is created

So to roll all that back ....

dropdb myinstance (this will remove the database - back it up first if
you need to keep a copy)
dropuser myinstance
userdel -r myinstance

Cheers
Bob

···

On 16 June 2015 at 03:42, gerald thomas <gerald17006@gmail.com> wrote:

Dear Dan,
When I drop the database, the role for such database is still there; but
that can be removed also. Now, if I try to create that instance again it
will say instance already created. So how can remove and create everything
from scratch.
Please remember I will the same instance name.

Regards,
Gerald

On 16 Jun 2015 00:57, "Dan Cocos" <dcocos@baosystems.com> wrote:

You can simply remove the war file and the directory from your servlet
container and drop the database.

> On Jun 15, 2015, at 8:08 PM, gerald thomas <gerald17006@gmail.com> >> > wrote:
>
> Dear All,
> Please can anyone help give me the steps how to uninstall an instance
> in dhis2.
>
> --
> Regards,
>
> Gerald
>
> _______________________________________________
> Mailing list: DHIS 2 developers in Launchpad
> Post to : dhis2-devs@lists.launchpad.net
> Unsubscribe : DHIS 2 developers in Launchpad
> More help : https://help.launchpad.net/ListHelp

_______________________________________________
Mailing list: DHIS 2 developers in Launchpad
Post to : dhis2-devs@lists.launchpad.net
Unsubscribe : DHIS 2 developers in Launchpad
More help : https://help.launchpad.net/ListHelp

6

Dear All,
For your information the dhis instance is running on an ubuntu 14.04
server VM on an XEN Server. The XEN Server has 2Gb RAM so i am using
1Gb on the ubuntu VM that is running the dhis instance.

From the manual

https://www.dhis2.org/doc/snapshot/en/implementer/html/re01.html
I was informed that as per default the instance should be allocated
2Gb of heap space RAM but that i can adjust
"var/lib/dhis2/<name>/bin/setenv.sh" to work with lower values of RAM
sizes. Please can anyone help me with the adjustment because i had
confirmed that everything is working properly but my system is below
requirement for it to work properly.

···

On 6/16/15, Bob Jolliffe <bobjolliffe@gmail.com> wrote:

Hi Gerald

I think you neglected to mention you are using dhis2-tools to create
this instance. When you run 'dhis2-instance-create myinstance' a few
things happen:
1. a new user called myinstance is created with a home dir of
/var/lib/dhis2/myinstance
2. a new database role called myinstance is created; and
3. a new database called myinstance is created

So to roll all that back ....

dropdb myinstance (this will remove the database - back it up first if
you need to keep a copy)
dropuser myinstance
userdel -r myinstance

Cheers
Bob

On 16 June 2015 at 03:42, gerald thomas <gerald17006@gmail.com> wrote:

Dear Dan,
When I drop the database, the role for such database is still there; but
that can be removed also. Now, if I try to create that instance again it
will say instance already created. So how can remove and create
everything
from scratch.
Please remember I will the same instance name.

Regards,
Gerald

On 16 Jun 2015 00:57, "Dan Cocos" <dcocos@baosystems.com> wrote:

You can simply remove the war file and the directory from your servlet
container and drop the database.

> On Jun 15, 2015, at 8:08 PM, gerald thomas <gerald17006@gmail.com> >>> > wrote:
>
> Dear All,
> Please can anyone help give me the steps how to uninstall an instance
> in dhis2.
>
> --
> Regards,
>
> Gerald
>
> _______________________________________________
> Mailing list: DHIS 2 developers in Launchpad
> Post to : dhis2-devs@lists.launchpad.net
> Unsubscribe : DHIS 2 developers in Launchpad
> More help : https://help.launchpad.net/ListHelp

_______________________________________________
Mailing list: DHIS 2 developers in Launchpad
Post to : dhis2-devs@lists.launchpad.net
Unsubscribe : DHIS 2 developers in Launchpad
More help : https://help.launchpad.net/ListHelp

--
Regards,

Gerald

7

Hi Gerald

I think you are being over ambitious to try and run in a 1G virtual
machine. In fact even to run XEN server on 2G machine doesn't make a
lot of sense. I can understand you might want to explore XEN
features, but you are very squeezed.

I am not sure what the minimum heap size required by dhis is.
Postgres by default if you haven't tuned it might use about 200M.
Nginx less. You might try setting your DHIS heapspace in setenv.sh to
something like 700M. But even so it seems extremely tight and you
will not end up with anything that is particularly useful.

Bob

···

On 16 June 2015 at 20:57, gerald thomas <gerald17006@gmail.com> wrote:

Dear All,
For your information the dhis instance is running on an ubuntu 14.04
server VM on an XEN Server. The XEN Server has 2Gb RAM so i am using
1Gb on the ubuntu VM that is running the dhis instance.
From the manual
https://www.dhis2.org/doc/snapshot/en/implementer/html/re01.html
I was informed that as per default the instance should be allocated
2Gb of heap space RAM but that i can adjust
"var/lib/dhis2/<name>/bin/setenv.sh" to work with lower values of RAM
sizes. Please can anyone help me with the adjustment because i had
confirmed that everything is working properly but my system is below
requirement for it to work properly.

On 6/16/15, Bob Jolliffe <bobjolliffe@gmail.com> wrote:

Hi Gerald

I think you neglected to mention you are using dhis2-tools to create
this instance. When you run 'dhis2-instance-create myinstance' a few
things happen:
1. a new user called myinstance is created with a home dir of
/var/lib/dhis2/myinstance
2. a new database role called myinstance is created; and
3. a new database called myinstance is created

So to roll all that back ....

dropdb myinstance (this will remove the database - back it up first if
you need to keep a copy)
dropuser myinstance
userdel -r myinstance

Cheers
Bob

On 16 June 2015 at 03:42, gerald thomas <gerald17006@gmail.com> wrote:

Dear Dan,
When I drop the database, the role for such database is still there; but
that can be removed also. Now, if I try to create that instance again it
will say instance already created. So how can remove and create
everything
from scratch.
Please remember I will the same instance name.

Regards,
Gerald

On 16 Jun 2015 00:57, "Dan Cocos" <dcocos@baosystems.com> wrote:

You can simply remove the war file and the directory from your servlet
container and drop the database.

> On Jun 15, 2015, at 8:08 PM, gerald thomas <gerald17006@gmail.com> >>>> > wrote:
>
> Dear All,
> Please can anyone help give me the steps how to uninstall an instance
> in dhis2.
>
> --
> Regards,
>
> Gerald
>
> _______________________________________________
> Mailing list: DHIS 2 developers in Launchpad
> Post to : dhis2-devs@lists.launchpad.net
> Unsubscribe : DHIS 2 developers in Launchpad
> More help : https://help.launchpad.net/ListHelp

_______________________________________________
Mailing list: DHIS 2 developers in Launchpad
Post to : dhis2-devs@lists.launchpad.net
Unsubscribe : DHIS 2 developers in Launchpad
More help : https://help.launchpad.net/ListHelp

--
Regards,

Gerald

8

Dear Bob,

I will try to see what I can do and I will get back to you. Thanks for your help

···

On Tuesday, June 16, 2015, Bob Jolliffe bobjolliffe@gmail.com wrote:

Hi Gerald

I think you are being over ambitious to try and run in a 1G virtual

machine. In fact even to run XEN server on 2G machine doesn’t make a

lot of sense. I can understand you might want to explore XEN

features, but you are very squeezed.

I am not sure what the minimum heap size required by dhis is.

Postgres by default if you haven’t tuned it might use about 200M.

Nginx less. You might try setting your DHIS heapspace in setenv.sh to

something like 700M. But even so it seems extremely tight and you

will not end up with anything that is particularly useful.

Bob

On 16 June 2015 at 20:57, gerald thomas gerald17006@gmail.com wrote:

Dear All,

For your information the dhis instance is running on an ubuntu 14.04

server VM on an XEN Server. The XEN Server has 2Gb RAM so i am using

1Gb on the ubuntu VM that is running the dhis instance.

From the manual

https://www.dhis2.org/doc/snapshot/en/implementer/html/re01.html

I was informed that as per default the instance should be allocated

2Gb of heap space RAM but that i can adjust

“var/lib/dhis2//bin/setenv.sh” to work with lower values of RAM

sizes. Please can anyone help me with the adjustment because i had

confirmed that everything is working properly but my system is below

requirement for it to work properly.

On 6/16/15, Bob Jolliffe bobjolliffe@gmail.com wrote:

Hi Gerald

I think you neglected to mention you are using dhis2-tools to create

this instance. When you run ‘dhis2-instance-create myinstance’ a few

things happen:

  1. a new user called myinstance is created with a home dir of

/var/lib/dhis2/myinstance

  1. a new database role called myinstance is created; and
  1. a new database called myinstance is created

So to roll all that back …

dropdb myinstance (this will remove the database - back it up first if

you need to keep a copy)

dropuser myinstance

userdel -r myinstance

Cheers

Bob

On 16 June 2015 at 03:42, gerald thomas gerald17006@gmail.com wrote:

Dear Dan,

When I drop the database, the role for such database is still there; but

that can be removed also. Now, if I try to create that instance again it

will say instance already created. So how can remove and create

everything

from scratch.

Please remember I will the same instance name.

Regards,

Gerald

On 16 Jun 2015 00:57, “Dan Cocos” dcocos@baosystems.com wrote:

You can simply remove the war file and the directory from your servlet

container and drop the database.

On Jun 15, 2015, at 8:08 PM, gerald thomas gerald17006@gmail.com > > >>>> > wrote:

Dear All,

Please can anyone help give me the steps how to uninstall an instance

in dhis2.

–

Regards,

Gerald

Mailing list: https://launchpad.net/~dhis2-devs

Post to : dhis2-devs@lists.launchpad.net

Unsubscribe : https://launchpad.net/~dhis2-devs

More help : https://help.launchpad.net/ListHelp

Mailing list: https://launchpad.net/~dhis2-devs

Post to : dhis2-devs@lists.launchpad.net

Unsubscribe : https://launchpad.net/~dhis2-devs

More help : https://help.launchpad.net/ListHelp

–

Regards,

Gerald

–
Regards,

Gerald