Are you able to repro this issue at your side?
Thanks.
From: jeremie.galarn...@gmail.com on behalf of
Jérémie Galarneau
Sent: Wednesday, April 12, 2017 10:34 AM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] LTTng on Docker
On 11
failure?
Thanks.
From: jeremie.galarn...@gmail.com on behalf of
Jérémie Galarneau
Sent: Monday, April 10, 2017 12:26 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] LTTng on Docker
On 10 April 2017 at 14:06, Jeffrey Chen mailto:cp
I just tried it a few more times. It is the --subbuf-size that's causing the
issue. The --tracefile-sze is fine. Thanks.
From: jeremie.galarn...@gmail.com on behalf of
Jérémie Galarneau
Sent: Monday, April 10, 2017 12:26 PM
To: Jeffrey Chen
Cc: lttn
mie.galarn...@gmail.com on behalf of
Jérémie Galarneau
Sent: Monday, April 10, 2017 12:26 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] LTTng on Docker
On 10 April 2017 at 14:06, Jeffrey Chen mailto:cp...@live.com>>
wrote:
I have attached the logs from the lttng
___
From: jeremie.galarn...@gmail.com on behalf of
Jérémie Galarneau
Sent: Sunday, April 9, 2017 2:06 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] LTTng on Docker
On 7 April 2017 at 18:35, Jeffrey Chen wrote:
> Hi:
>
>
> I am trying to have LTTng UST t
, April 9, 2017 2:06 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev] LTTng on Docker
On 7 April 2017 at 18:35, Jeffrey Chen wrote:
> Hi:
>
>
> I am trying to have LTTng UST tracing inside a docker container. I wasn't
> able to get the UST tracing work
I just tried the latest version of lttng (2.9.3). It still has the same issue
at my side. Thanks.
From: jeremie.galarn...@gmail.com on behalf of
Jérémie Galarneau
Sent: Sunday, April 9, 2017 2:06 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re
Hi:
I am trying to have LTTng UST tracing inside a docker container. I wasn't able
to get the UST tracing working. LTTng would not write any UST trace files in
the directory, even though it printed it would. Has it been tested before? Is
there any known problem?
$ lttng enable-channel --sess
From: lttng-dev on behalf of Jeffrey Chen
Sent: Tuesday, September 27, 2016 11:20 AM
To: lttng-dev
Subject: [lttng-dev] LTTng memory map
Hi LTTng:
Our service has been running overnight with LTTng enabled to do some memory
consumption testing. We noticed the linux pmap output would have se
Hi LTTng:
Our service has been running overnight with LTTng enabled to do some memory
consumption testing. We noticed the linux pmap output would have several memory
map used by LTTng, and are marked as deleted. Do you know what are them? Why
are they left in the system and marked as deleted?
Sent: Wednesday, September 21, 2016 2:05 PM
To: Jeffrey Chen
Cc: Jeffrey Chen; lttng-dev
Subject: Re: segfault when exiting process with background thread
I don't see anything relevant that changed since commit:
commit 664ccf245fcb343e1ea10e145bab3749423e9d0f
Author: Mathieu Desnoyers
To: Jeffrey Chen
Cc: lttng-dev
Subject: Re: [lttng-dev] segfault when exiting process with background thread
Commit merged into master, thanks for your feedback!
Mathieu
- On Mar 15, 2016, at 2:48 PM, Jeffrey Chen wrote:
Hi Mathieu:
Will this fix be checked-in? Thanks
Hi LTTng community:
We are using LTTng to collect traces from our non-stopping service (our service
is running 24/7, highly available). We collect traces by rotate the trace in an
interval. We do this by creating new session, stop the old session, and process
the old traces, every 10 minutes.
Hi Mathieu:
Will this fix be checked-in? Thanks.
From: Mathieu Desnoyers
Sent: Thursday, March 10, 2016 3:27 PM
To: Jeffrey Chen
Cc: Jonathan Rajotte Julien; lttng-dev
Subject: Re: segfault when exiting process with background thread
- On Mar 10, 2016
et cleared the memory.
This fix is okay with us, but I am not certain if it would break other
component, since I do not understand LTTng enough to tell. Thanks.
From: Mathieu Desnoyers
Sent: Thursday, March 10, 2016 10:52 AM
To: Jeffrey Chen
Cc: Jonathan Rajo
)?
Were you able to reproduce the issue on master (git) ?
What are the exact order of command to reproduce the problem ?
Thanks
On 2016-03-08 06:43 PM, Jeffrey Chen wrote:
Hi LTTng community:
We are using LTTng for our production environment. We have been noticing
segfault problem when our
Hi LTTng community:
We are using LTTng for our production environment. We have been noticing
segfault problem when our process exit. We think the problem is due to the
background thread continue to write traces, while LTTng cleanup its memory. We
do not know how to fix this issue without chang
Thanks!
I will try to get a sample executable. But, just from the theory point of view,
this issue is possible, right?
From: Jonathan Rajotte Julien
Sent: Wednesday, March 2, 2016 12:35 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng-dev
Hi:
Our system process will spawn several background threads to do tasks. During
the process exit, there is no guarantee that these background threads are
finished. I have noticed several times that the execution would segfault during
exiting. The stacktrace is showing that the segfault happen
Hi LTTng community:
LTTng supports trace rotation by having flags "--tracefile-size",
"--tracefile-count". What is the correct use case on using the rotation files?
What we want to do is, without stopping the session, and collect the completed
traces (reached file max size), and output the tr
Thanks.
If we make changes to LTTng to add this feature, would it violate the LTTng
design principle in any way? Thanks.
From: Philippe Proulx
Sent: Tuesday, February 16, 2016 5:02 PM
To: Jeffrey Chen
Cc: lttng-dev@lists.lttng.org
Subject: Re: [lttng
Hi LTTng community:
I have a question about LTTng buffer mode. According to documentation, LTTng
supports 2 buffer modes, per-pid, and per-uid. Is there any mode to have a
global buffer that does not have separate buffers? The reason I asked is
because, LTTng writes different buffer traces to
han.rajotte-jul...@efficios.com
> Date: Tue, 15 Dec 2015 14:47:47 -0500
> Subject: Re: [lttng-dev] LTTng trace files organize
>
> Hey Jeffrey
>
> On 2015-12-15 02:15 PM, Jeffrey Chen wrote:
> > Hi:
> >
> > I have a question on how LTTng organize trace files.
Hi:
I have a question on how LTTng organize trace files. I noticed by default for
userspace tracing, LTTng writes a trace file per CPU core. So, I would get
something like channel0_0, channel0_1, channel0_2, channel0_3, for the case of
4 CPU cores. Is there a way to config LTTng only writes to
Hi:
I have a question on how LTTng organize trace files. I noticed by default for
userspace tracing, LTTng writes a trace file per CPU core. So, I would get
something like channel0_0, channel0_1, channel0_2, channel0_3, for the case of
4 CPU cores. Is there a way to config LTTng only writes to
Hi:
I am using LTTng for tracing user-space application. Does LTTng support
hourly/weekly/monthly rollover tracing? Some of the tracing libraries like
log4j supports this, it will separate traces into different files for each
hour/week/month depending on your setup. You could start to read the
Hi:
This is a requirement for us, we do not know the events during compile time. I
am wondering is it easy to do to register tracepoint events during runtime. Has
this been done before? Is there any document about it? Thanks.
_
I noticed a macro issue with LTTng under C++. The TRACEPOINT_LOGLEVEL would be
ignored.
Here are my steps to repro the issue. My .tp file has the TRACEPOINT_LOGLEVEL
macro set.
1. I generated the hello-tp.c file from the hello-tp.tp file using the
lttng-gen-tp tool.
2. I renamed the generated .
ything wrong? Thanks.
> Date: Mon, 22 Jun 2015 17:20:35 -0400
> From: alexmon...@voxpopuli.im
> To: cp...@hotmail.com
> CC: lttng-dev@lists.lttng.org
> Subject: Re: [lttng-dev] LTTng event loglevel
>
> Hi,
>
> On 2015-06-22 05:06 PM, Jeffrey Chen wrote:
> > Hi:
&
Hi:
I am reading the LTTng and I am confused about the loglevel in the document.
The document talked about it could assign a loglevel to each event.
(http://lttng.org/docs/#doc-assigning-log-levels) But, later in the document,
it says all events from LTTng are traced as loglevel TRACE_DEBUG_FUN
I have a question while reading the lttng documentation. Could anyone answer
me? Thanks a lot.
It looks like lttng events are all key-value pairs. Like { my_val1 = 10,
my_val2 = "OK" }. Does lttng supports regular string format based events, like
Windows ETW. I want a human readable sentence
I have a question while reading the lttng documentation. Could anyone answer
me? Thanks a lot.
It looks like lttng events are all key-value pairs. Like { my_val1 = 10,
my_val2 = "OK" }. Does lttng supports regular string format based events, like
Windows ETW. I want a human readable sentences i
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