Warning: HOME environment variable not set

Warning: HOME environment variable not set

[Anand Neeli]

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Hi All,
I get the following warning in my app.
App has included lttng libraries, but doesnt have any instrumented code
with trace points.

Can anyone tell me the issue here?
i'm using 2.4.1 version

app: libust[2628/2628]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:305)

app: libust[2634/2634]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:305)

app: libust[2636/2636]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:305)

app: libust[2638/2638]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:305)


Thanks,

Anand Neeli

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Warning: HOME environment variable not set.

[Anand Neeli]

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Hi All,

any idea when do we get this error?

app: libust[4745/4745]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:385)
app: libust[4751/4751]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:385)
app: libust[4760/4760]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:385)
app: libust[4780/4780]: Warning: HOME environment variable not set.
Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
lttng-ust-comm.c:385)

i have set LTTNG_HOME=HOME=/home/root
using 2.6

Thanks,
Anand Neeli

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Re: Warning: HOME environment variable not set.

[Chidhu R]

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I too am getting the same errors. Inspite of setting LTTNG_HOME in my
program.

On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli <anand.neeli@gmail.com> wrote:

> Hi All,
>
> any idea when do we get this error?
>
> app: libust[4745/4745]: Warning: HOME environment variable not set.
> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> lttng-ust-comm.c:385)
> app: libust[4751/4751]: Warning: HOME environment variable not set.
> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> lttng-ust-comm.c:385)
> app: libust[4760/4760]: Warning: HOME environment variable not set.
> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> lttng-ust-comm.c:385)
> app: libust[4780/4780]: Warning: HOME environment variable not set.
> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> lttng-ust-comm.c:385)
>
> i have set LTTNG_HOME=HOME=/home/root
> using 2.6
>
> Thanks,
> Anand Neeli
>
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>

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Re: Warning: HOME environment variable not set.

[Anand Neeli]

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Hi All,
I'm sorry to bump on this thread again.

Is there any way to overcome this issue?

Thanks,
Anand Neeli

On Wed, Mar 18, 2015 at 10:01 PM, Chidhu R <chid1989@gmail.com> wrote:

> I too am getting the same errors. Inspite of setting LTTNG_HOME in my
> program.
>
> On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli <anand.neeli@gmail.com>
> wrote:
>
>> Hi All,
>>
>> any idea when do we get this error?
>>
>> app: libust[4745/4745]: Warning: HOME environment variable not set.
>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>> lttng-ust-comm.c:385)
>> app: libust[4751/4751]: Warning: HOME environment variable not set.
>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>> lttng-ust-comm.c:385)
>> app: libust[4760/4760]: Warning: HOME environment variable not set.
>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>> lttng-ust-comm.c:385)
>> app: libust[4780/4780]: Warning: HOME environment variable not set.
>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>> lttng-ust-comm.c:385)
>>
>> i have set LTTNG_HOME=HOME=/home/root
>> using 2.6
>>
>> Thanks,
>> Anand Neeli
>>
>>
>> _______________________________________________
>> lttng-dev mailing list
>> lttng-dev@lists.lttng.org
>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>
>>
>

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Re: Warning: HOME environment variable not set.

[Mathieu Desnoyers]

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Perhaps your program is clearing its environment 
variables ? Or launched by a wrapper that clears 
the env. var. ? 

Can you try with a simple demo program to find our 
what is clearing those ? 

Thanks, 

Mathieu 

----- Original Message -----

> Hi All,
> I'm sorry to bump on this thread again.

> Is there any way to overcome this issue?

> Thanks,
> Anand Neeli

> On Wed, Mar 18, 2015 at 10:01 PM, Chidhu R < chid1989@gmail.com > wrote:

> > I too am getting the same errors. Inspite of setting LTTNG_HOME in my
> > program.
> 

> > On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli < anand.neeli@gmail.com >
> > wrote:
> 

> > > Hi All,
> > 
> 

> > > any idea when do we get this error?
> > 
> 

> > > app: libust[4745/4745]: Warning: HOME environment variable not set.
> > > Disabling
> > > LTTng-UST per-user tracing. (in setup_local_apps() at
> > > lttng-ust-comm.c:385)
> > 
> 
> > > app: libust[4751/4751]: Warning: HOME environment variable not set.
> > > Disabling
> > > LTTng-UST per-user tracing. (in setup_local_apps() at
> > > lttng-ust-comm.c:385)
> > 
> 
> > > app: libust[4760/4760]: Warning: HOME environment variable not set.
> > > Disabling
> > > LTTng-UST per-user tracing. (in setup_local_apps() at
> > > lttng-ust-comm.c:385)
> > 
> 
> > > app: libust[4780/4780]: Warning: HOME environment variable not set.
> > > Disabling
> > > LTTng-UST per-user tracing. (in setup_local_apps() at
> > > lttng-ust-comm.c:385)
> > 
> 

> > > i have set LTTNG_HOME=HOME=/home/root
> > 
> 
> > > using 2.6
> > 
> 

> > > Thanks,
> > 
> 
> > > Anand Neeli
> > 
> 

> > > _______________________________________________
> > 
> 
> > > lttng-dev mailing list
> > 
> 
> > > lttng-dev@lists.lttng.org
> > 
> 
> > > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> > 
> 

> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

-- 
Mathieu Desnoyers 
EfficiOS Inc. 
http://www.efficios.com 

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Re: Warning: HOME environment variable not set.

[Anand Neeli]

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Thanks a lot, that helped.
Yes my process was resetting env variables.

-Anand Neeli

On Mon, Mar 23, 2015 at 7:06 PM, Mathieu Desnoyers <
mathieu.desnoyers@efficios.com> wrote:

> Perhaps your program is clearing its environment
> variables ? Or launched by a wrapper that clears
> the env. var. ?
>
> Can you try with a simple demo program to find our
> what is clearing those ?
>
> Thanks,
>
> Mathieu
>
>
> ------------------------------
>
> Hi All,
> I'm sorry to bump on this thread again.
>
> Is there any way to overcome this issue?
>
> Thanks,
> Anand Neeli
>
> On Wed, Mar 18, 2015 at 10:01 PM, Chidhu R <chid1989@gmail.com> wrote:
>
>> I too am getting the same errors. Inspite of setting LTTNG_HOME in my
>> program.
>>
>> On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli <anand.neeli@gmail.com>
>> wrote:
>>
>>> Hi All,
>>>
>>> any idea when do we get this error?
>>>
>>> app: libust[4745/4745]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4751/4751]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4760/4760]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4780/4780]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>>
>>> i have set LTTNG_HOME=HOME=/home/root
>>> using 2.6
>>>
>>> Thanks,
>>> Anand Neeli
>>>
>>>
>>> _______________________________________________
>>> lttng-dev mailing list
>>> lttng-dev@lists.lttng.org
>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>>
>>>
>>
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>
>
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
>

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Re: Warning: HOME environment variable not set.

[Anand Neeli]

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What will be the effect of HOME env var not being set?
cant the app log without this env var? or can we ignore this warning?

Thanks,
Anand Neeli


On Mon, Mar 23, 2015 at 7:06 PM, Mathieu Desnoyers <
mathieu.desnoyers@efficios.com> wrote:

> Perhaps your program is clearing its environment
> variables ? Or launched by a wrapper that clears
> the env. var. ?
>
> Can you try with a simple demo program to find our
> what is clearing those ?
>
> Thanks,
>
> Mathieu
>
>
> ------------------------------
>
> Hi All,
> I'm sorry to bump on this thread again.
>
> Is there any way to overcome this issue?
>
> Thanks,
> Anand Neeli
>
> On Wed, Mar 18, 2015 at 10:01 PM, Chidhu R <chid1989@gmail.com> wrote:
>
>> I too am getting the same errors. Inspite of setting LTTNG_HOME in my
>> program.
>>
>> On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli <anand.neeli@gmail.com>
>> wrote:
>>
>>> Hi All,
>>>
>>> any idea when do we get this error?
>>>
>>> app: libust[4745/4745]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4751/4751]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4760/4760]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4780/4780]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>>
>>> i have set LTTNG_HOME=HOME=/home/root
>>> using 2.6
>>>
>>> Thanks,
>>> Anand Neeli
>>>
>>>
>>> _______________________________________________
>>> lttng-dev mailing list
>>> lttng-dev@lists.lttng.org
>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>>
>>>
>>
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>
>
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
>

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Re: Warning: HOME environment variable not set.

[Philippe Proulx]

On Mon, Mar 23, 2015 at 9:36 AM, Mathieu Desnoyers
<mathieu.desnoyers@efficios.com> wrote:
> Perhaps your program is clearing its environment
> variables ? Or launched by a wrapper that clears
> the env. var. ?

Perhaps LTTng-UST should do like LTTng-tools: try $LTTNG_HOME, then
$HOME, then the current UID's entry in /etc/passwd? This would avoid
disabling per-user tracing even when the environment variables are cleared.

WDYT?

Phil

>
> Can you try with a simple demo program to find our
> what is clearing those ?
>
> Thanks,
>
> Mathieu
>
>
> ________________________________
>
> Hi All,
> I'm sorry to bump on this thread again.
>
> Is there any way to overcome this issue?
>
> Thanks,
> Anand Neeli
>
> On Wed, Mar 18, 2015 at 10:01 PM, Chidhu R <chid1989@gmail.com> wrote:
>>
>> I too am getting the same errors. Inspite of setting LTTNG_HOME in my
>> program.
>>
>> On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli <anand.neeli@gmail.com>
>> wrote:
>>>
>>> Hi All,
>>>
>>> any idea when do we get this error?
>>>
>>> app: libust[4745/4745]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4751/4751]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4760/4760]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>> app: libust[4780/4780]: Warning: HOME environment variable not set.
>>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
>>> lttng-ust-comm.c:385)
>>>
>>> i have set LTTNG_HOME=HOME=/home/root
>>> using 2.6
>>>
>>> Thanks,
>>> Anand Neeli
>>>
>>>
>>> _______________________________________________
>>> lttng-dev mailing list
>>> lttng-dev@lists.lttng.org
>>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>>>
>>
>
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>
>
>
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
>
> _______________________________________________
> lttng-dev mailing list
> lttng-dev@lists.lttng.org
> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>

Re: Warning: HOME environment variable not set.

[Anand Neeli]

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What's the impact of this?
What will happen if we see this error "disabling per-user tracing".
Will the app stop tracing?

Thanks
Anand Neeli
On Apr 11, 2015 5:27 AM, "Philippe Proulx" <eeppeliteloop@gmail.com> wrote:

> On Mon, Mar 23, 2015 at 9:36 AM, Mathieu Desnoyers
> <mathieu.desnoyers@efficios.com> wrote:
> > Perhaps your program is clearing its environment
> > variables ? Or launched by a wrapper that clears
> > the env. var. ?
>
> Perhaps LTTng-UST should do like LTTng-tools: try $LTTNG_HOME, then
> $HOME, then the current UID's entry in /etc/passwd? This would avoid
> disabling per-user tracing even when the environment variables are cleared.
>
> WDYT?
>
> Phil
>
> >
> > Can you try with a simple demo program to find our
> > what is clearing those ?
> >
> > Thanks,
> >
> > Mathieu
> >
> >
> > ________________________________
> >
> > Hi All,
> > I'm sorry to bump on this thread again.
> >
> > Is there any way to overcome this issue?
> >
> > Thanks,
> > Anand Neeli
> >
> > On Wed, Mar 18, 2015 at 10:01 PM, Chidhu R <chid1989@gmail.com> wrote:
> >>
> >> I too am getting the same errors. Inspite of setting LTTNG_HOME in my
> >> program.
> >>
> >> On Tue, Mar 17, 2015 at 2:18 PM, Anand Neeli <anand.neeli@gmail.com>
> >> wrote:
> >>>
> >>> Hi All,
> >>>
> >>> any idea when do we get this error?
> >>>
> >>> app: libust[4745/4745]: Warning: HOME environment variable not set.
> >>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> >>> lttng-ust-comm.c:385)
> >>> app: libust[4751/4751]: Warning: HOME environment variable not set.
> >>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> >>> lttng-ust-comm.c:385)
> >>> app: libust[4760/4760]: Warning: HOME environment variable not set.
> >>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> >>> lttng-ust-comm.c:385)
> >>> app: libust[4780/4780]: Warning: HOME environment variable not set.
> >>> Disabling LTTng-UST per-user tracing. (in setup_local_apps() at
> >>> lttng-ust-comm.c:385)
> >>>
> >>> i have set LTTNG_HOME=HOME=/home/root
> >>> using 2.6
> >>>
> >>> Thanks,
> >>> Anand Neeli
> >>>
> >>>
> >>> _______________________________________________
> >>> lttng-dev mailing list
> >>> lttng-dev@lists.lttng.org
> >>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> >>>
> >>
> >
> >
> > _______________________________________________
> > lttng-dev mailing list
> > lttng-dev@lists.lttng.org
> > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> >
> >
> >
> >
> > --
> > Mathieu Desnoyers
> > EfficiOS Inc.
> > http://www.efficios.com
> >
> > _______________________________________________
> > lttng-dev mailing list
> > lttng-dev@lists.lttng.org
> > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> >
>

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