[lttng-dev] [RELEASE] LTTng-Tools 2.6.0-rc1 - Gaia

[bernd.hufmann@ericsson.com (Bernd Hufmann)]

Hello

I'd like to get some understanding about this. So, any comments on the 
reported error below?

Thanks
Bernd

On 10/20/2014 02:44 PM, Bernd Hufmann wrote:
> Hello
>
> I just tried to configure the metadata channel for UST. After that I 
> get an error when listing the session.
> Could someone please verify this? See below for the commands I used 
> and the error message.
>
> Many thanks in advance!
>
> Best Regards
> Bernd
>
> > lttng create
> Session auto-20141020-141307 created.
> Traces will be written in /home/bernd/lttng-traces/auto-20141020-141307
>
> >lttng enable-channel --subbuf-size 8192 -u metadata
> UST channel metadata enabled for session auto-20141020-141307
> >lttng list auto-20141020-141307
> Tracing session auto-20141020-141307: [inactive]
>     Trace path: /home/bernd/lttng-traces/auto-20141020-141307
>
> === Domain: UST global ===
>
> Buffer type: per UID
>
> Error: UST channel not found
> Error: Command error
>
>
>
> On 10/20/2014 01:26 PM, David Goulet wrote:
>> Greetings everyone (including LTTng bards!),
>>
>> The lttng-tools project provides a session daemon (lttng-sessiond) that acts as
>> a tracing registry, the "lttng" command line for tracing control, a lttng-ctl
>> library for tracing control and a lttng-relayd for network streaming and live
>> reading.
>>
>> This is the release candidate number 1 of version 2.6, code name: Gaia.
>>
>> This features are listed below but here is a quick howto to use them. For the
>> MI feature, simply adds to the lttng command line the option "--mi xml". Only
>> XML is supported for now.
>>
>> 	lttng --mi xml version
>>
>> Note that there are now new lines for parsing efficiency. You can find the XML
>> schema in "src/common/mi_lttng.xsd". Big thanks to Jonathan Rajotte for this
>> great feature that the lttng bash completion file has already started using it!
>>
>> Also, Java log4j support has been added as a new domain (like JUL) that you can
>> use with the command line option -l, --log4j and with the API using
>> LTTNG_DOMAIN_LOG4J.
>>
>> Finally, it's now possible to do per syscall tracing. You can get a full list
>> of the available syscalls on your system with "lttng list -k --syscall". To
>> enable a syscall, use its name like so:
>>
>> 	lttng enable-event -k --syscall connect
>>
>> Note that it's not possible to choose the bitness of the syscall thus for
>> instance enabling "read" on a kernel supporting both 32 and 64 bit will enabled
>> both of them.
>>
>> Of course, we fix a BUNCH of things that hopefully will make lttng tools more
>> stable and powerful :). Here is the ChangeLog entry for 2.6-rc1.
>>
>> 2014-10-20 lttng-tools 2.6.0-rc1 (Harry Belafonte records Banana Boat Song)
>> 	* Machine Interface added to lttng command line (--mi)
>> 	* Java Log4j agent support (--log4j)
>> 	* Kernel per syscall tracing
>> 	* Multiple fixes. A lot!
>>
>> Please report ANY issues to bugs.lttng.org or on that mailing list.
>>
>> Using it is testing it!
>>
>> Project website:https://lttng.org
>> Download link:
>> https://lttng.org/files/lttng-tools/lttng-tools-2.6.0-rc1.tar.bz2
>> GPG sig:https://lttng.org/files/lttng-tools/lttng-tools-2.6.0-rc1.tar.bz2.asc
>>
>> Cheers!
>> David
>>
>>
>> _______________________________________________
>> lttng-dev mailing list
>> lttng-dev at lists.lttng.org
>> http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
>
>
>
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