Re: [ceph-users] build and Compile ceph in development mode takes an hour

[Lenz Grimmer]

On 08/18/2016 12:42 AM, Brad Hubbard wrote:

> On Thu, Aug 18, 2016 at 1:12 AM, agung Laksono
>  wrote:
>> 
>> Is there a way to make the compiling process be faster? something
>> like only compile a particular code that I change.
> 
> Sure, just use the same build directory and run "make" again after
> you make code changes and it should only re-compile the binaries that
> are effected by your code changes.
> 
> You can use "make -jX" if you aren't already where 'X' is usually 
> number of CPUs / 2 which may speed up the build.

In addition to that, ccache might come in handy, too:
https://ccache.samba.org/

Lenz



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Re: [ceph-users] build and Compile ceph in development mode takes an hour

[agung Laksono]

HI Brad,

After exploring Ceph, I found sometimes when I run *make* command without
removing the build folder, it will end with this error:

/home/agung/project/samc/ceph/build/bin/init-ceph: ceph conf ./ceph.conf
not found; system is not configured.
rm -f core*
ip 127.0.0.1
port 6789

NOTE: hostname resolves to loopback; remote hosts will not be able to
  connect.  either adjust /etc/hosts, or edit this script to use your
  machine's real IP.

/home/agung/project/samc/ceph/build/bin/ceph-authtool --create-keyring
--gen-key --name=mon. /home/agung/project/samc/ceph/build/keyring --cap mon
allow *
creating /home/agung/project/samc/ceph/build/keyring
/home/agung/project/samc/ceph/build/bin/ceph-authtool --gen-key
--name=client.admin --set-uid=0 --cap mon allow * --cap osd allow * --cap
mds allow * /home/agung/project/samc/ceph/build/keyring
/home/agung/project/samc/ceph/build/bin/monmaptool --create --clobber --add
a 127.0.0.1:6789 --add b 127.0.0.1:6790 --add c 127.0.0.1:6791 --print
/tmp/ceph_monmap.8374
/home/agung/project/samc/ceph/build/bin/monmaptool: monmap file
/tmp/ceph_monmap.8374
/home/agung/project/samc/ceph/build/bin/monmaptool: generated fsid
9a08986c-b051-48e1-9002-f49af0cb9efd
epoch 0
fsid 9a08986c-b051-48e1-9002-f49af0cb9efd
last_changed 2016-08-31 20:54:42.473678
created 2016-08-31 20:54:42.473678
0: 127.0.0.1:6789/0 mon.a
1: 127.0.0.1:6790/0 mon.b
2: 127.0.0.1:6791/0 mon.c
/home/agung/project/samc/ceph/build/bin/monmaptool: writing epoch 0 to
/tmp/ceph_monmap.8374 (3 monitors)
rm -rf -- /home/agung/project/samc/ceph/build/dev/mon.a
mkdir -p /home/agung/project/samc/ceph/build/dev/mon.a
/home/agung/project/samc/ceph/build/bin/ceph-mon --mkfs -c
/home/agung/project/samc/ceph/build/ceph.conf -i a
--monmap=/tmp/ceph_monmap.8374
--keyring=/home/agung/project/samc/ceph/build/keyring
Segmentation fault (core dumped)


I have tried to remove the ceph.conf and clean up the temp/ folder before
run OSD=3 MON=3 MDS=1 ../src/vstart.sh -n -x -l.
But still did not work. probably you have any suggestion?


On Thu, Aug 18, 2016 at 5:42 AM, Brad Hubbard  wrote:

> On Thu, Aug 18, 2016 at 1:12 AM, agung Laksono 
> wrote:
> > Hi Ceph User,
> >
> > When I make change inside ceph codes in the development mode,
> > I found that recompiling takes around an hour because I have to remove
> > a build folder and all the contest and then reproduce it.
> >
> > Is there a way to make the compiling process be faster? something like
> only
> > compile a particular code that I change.
>
> Sure, just use the same build directory and run "make" again after you
> make code
> changes and it should only re-compile the binaries that are effected
> by your code
> changes.
>
> You can use "make -jX" if you aren't already where 'X' is usually
> number of CPUs / 2
> which may speed up the build.
>
> HTH,
> Brad
>
> >
> > Thanks before
> >
> >
> > --
> > Cheers,
> >
> > Agung Laksono
> >
> >
> > ___
> > ceph-users mailing list
> > ceph-users@lists.ceph.com
> > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> >
>



-- 
Cheers,

Agung Laksono
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Re: [ceph-users] build and Compile ceph in development mode takes an hour

[Brad Hubbard]

On Thu, Aug 18, 2016 at 1:12 AM, agung Laksono  wrote:
> Hi Ceph User,
>
> When I make change inside ceph codes in the development mode,
> I found that recompiling takes around an hour because I have to remove
> a build folder and all the contest and then reproduce it.
>
> Is there a way to make the compiling process be faster? something like only
> compile a particular code that I change.

Sure, just use the same build directory and run "make" again after you make code
changes and it should only re-compile the binaries that are effected
by your code
changes.

You can use "make -jX" if you aren't already where 'X' is usually
number of CPUs / 2
which may speed up the build.

HTH,
Brad

>
> Thanks before
>
>
> --
> Cheers,
>
> Agung Laksono
>
>
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> ceph-users mailing list
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>
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