Re: [Ganglia-developers] gmond segfault with libpython
Ok, that's weird. Could you recheck SELinux config and/or logs in /var/log/messages and audit.log? On Sun, Feb 09, 2014 at 09:54:09AM -0500, Jeff Layton wrote: Maciej, I'm attaching a tar-gzip file with the strace logs (I hope it gets through the various filters). There are 11 separate strace files (I didn't combine them into one). The only one that has a segfault in it is 3537: access(/usr/local/lib64/ganglia/python_modules, F_OK) = 0 access(/usr/local/lib64/ganglia/python_modules, R_OK) = 0 --- SIGSEGV (Segmentation fault) @ 0 (0) --- I ran gmond as root. It appears to be something just after the permissions on python module directory are checked (my naive attempt at understand the strace output). Thanks! Jeff strace -s 1024 -ff -o strace.log gmond-c /etc/ganglia/gmond.conf -- -- pozdrawiam, Maciej Lasyk GPG key ID: FFA8AEEC GPG info: http://maciek.lasyk.info/gpg.txt pgpjwSku3ALi3.pgp Description: PGP signature -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
Re: [Ganglia-developers] gmond segfault with libpython
Maciej, Yep, SELinux is off: [root@home4 laytonjb]# cat /etc/sysconfig/selinux # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=disabled # SELINUXTYPE= can take one of these two values: # targeted - Targeted processes are protected, # mls - Multi Level Security protection. SELINUXTYPE=targeted I don't see anything in any logs. Here is the end of /var/log/messages: Feb 9 13:14:07 home4 kernel: gmond[8866]: segfault at 8 ip 0036a7ce6ceb sp 7fffabb234d0 error 4 in libpython2.6.so.1.0[36a7c0+15d000] Feb 9 13:14:07 home4 abrt[8877]: Saved core dump of pid 8866 (/usr/local/sbin/gmond) to /var/spool/abrt/ccpp-2014-02-09-13:14:07-8866 (5361664 bytes) Feb 9 13:14:07 home4 abrtd: Directory 'ccpp-2014-02-09-13:14:07-8866' creation detected Feb 9 13:14:07 home4 abrtd: Executable '/usr/local/sbin/gmond' doesn't belong to any package and ProcessUnpackaged is set to 'no' Feb 9 13:14:07 home4 abrtd: 'post-create' on '/var/spool/abrt/ccpp-2014-02-09-13:14:07-8866' exited with 1 Feb 9 13:14:07 home4 abrtd: Deleting problem directory '/var/spool/abrt/ccpp-2014-02-09-13:14:07-8866' I did check audit.log and there was only one line that pertained to anything type=ANOM_ABEND msg=audit(1391969647.201:480): auid=500 uid=0 gid=0 ses=1 pid=8866 comm=gmond sig=11 I built the code with almost everything enabled. I thought about removing some packages from my system and rebuilding. For example, I could try removing libcmemcached but I'm not sure that will do any good. Maybe I need to drop back to an older ganglia version? Thanks for your help! Jeff Ok, that's weird. Could you recheck SELinux config and/or logs in /var/log/messages and audit.log? On Sun, Feb 09, 2014 at 09:54:09AM -0500, Jeff Layton wrote: Maciej, I'm attaching a tar-gzip file with the strace logs (I hope it gets through the various filters). There are 11 separate strace files (I didn't combine them into one). The only one that has a segfault in it is 3537: access(/usr/local/lib64/ganglia/python_modules, F_OK) = 0 access(/usr/local/lib64/ganglia/python_modules, R_OK) = 0 --- SIGSEGV (Segmentation fault) @ 0 (0) --- I ran gmond as root. It appears to be something just after the permissions on python module directory are checked (my naive attempt at understand the strace output). Thanks! Jeff strace -s 1024 -ff -o strace.log gmond-c /etc/ganglia/gmond.conf -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk ___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
Re: [Ganglia-developers] gmond segfault with libpython
On 02/09/2014 02:28 PM, Maciej Lasyk wrote: On Sun, Feb 09, 2014 at 01:22:08PM -0500, Jeff Layton wrote: Maybe I need to drop back to an older ganglia version? What kind of repositories do you use on this Centos (yum repolist all)? Does 'yum update' finishes without any problems? I apologies for the length. repo idrepo name status C6.0-base CentOS-6.0 - Base disabled C6.0-centosplusCentOS-6.0 - CentOSPlus disabled C6.0-contrib CentOS-6.0 - Contribdisabled C6.0-extrasCentOS-6.0 - Extras disabled C6.0-updates CentOS-6.0 - Updatesdisabled C6.1-base CentOS-6.1 - Base disabled C6.1-centosplusCentOS-6.1 - CentOSPlus disabled C6.1-contrib CentOS-6.1 - Contribdisabled C6.1-extrasCentOS-6.1 - Extras disabled C6.1-updates CentOS-6.1 - Updatesdisabled C6.2-base CentOS-6.2 - Base disabled C6.2-centosplusCentOS-6.2 - CentOSPlus disabled C6.2-contrib CentOS-6.2 - Contribdisabled C6.2-extrasCentOS-6.2 - Extras disabled C6.2-updates CentOS-6.2 - Updatesdisabled C6.3-base CentOS-6.3 - Base disabled C6.3-centosplusCentOS-6.3 - CentOSPlus disabled C6.3-contrib CentOS-6.3 - Contribdisabled C6.3-extrasCentOS-6.3 - Extras disabled C6.3-updates CentOS-6.3 - Updatesdisabled C6.4-base CentOS-6.4 - Base disabled C6.4-centosplusCentOS-6.4 - CentOSPlus disabled C6.4-contrib CentOS-6.4 - Contribdisabled C6.4-extrasCentOS-6.4 - Extras disabled C6.4-updates CentOS-6.4 - Updatesdisabled adobe-linux-i386 Adobe Systems Incorporated enabled: 2 adobe-linux-x86_64 Adobe Systems Incorporated enabled: 2 base CentOS-6 - Base enabled: 6,367 c6-media CentOS-6 - Mediadisabled centosplus CentOS-6 - Plus disabled contribCentOS-6 - Contrib disabled debug CentOS-6 - Debuginfodisabled elrepo ELRepo.org Community Enterprise Linux Repository - el6 enabled:262 elrepo-extras ELRepo.org Community Enterprise Linux Extras Repository - e disabled elrepo-kernel ELRepo.org Community Enterprise Linux Kernel Repository - e disabled elrepo-testing ELRepo.org Community Enterprise Linux Testing Repository - disabled epel Extra Packages for Enterprise Linux 6 - x86_64 enabled: 10,444 epel-debuginfo Extra Packages for Enterprise Linux 6 - x86_64 - Debug disabled epel-sourceExtra Packages for Enterprise Linux 6 - x86_64 - Source disabled epel-testing Extra Packages for Enterprise Linux 6 - Testing - x86_64disabled epel-testing-debuginfo Extra Packages for Enterprise Linux 6 - Testing - x86_64 - disabled epel-testing-sourceExtra Packages for Enterprise Linux 6 - Testing - x86_64 - disabled extras CentOS-6 - Extras enabled: 14 updatesCentOS-6 - Updates enabled:464 virtualbox Oracle Linux / RHEL / CentOS-6 / x86_64 - VirtualBoxenabled: 22 repolist: 17,577 Everything updates correctly (i.e. it finishes). I built ganglia from source - I didn't use any rpm's. You could also try to catch on which particular check this segfault happens..? Not sure how to check this. When I run gmond interactively, it segfaults just after it says, [root@home4 yum.repos.d]# /usr/local/sbin/gmond -d
Re: [Ganglia-developers] gmond segfault with libpython
On 02/09/2014 02:48 PM, Jeff Layton wrote:
On 02/09/2014 02:28 PM, Maciej Lasyk wrote:
You could also try to catch on which particular check this segfault
happens..?
Not sure how to check this. When I run gmond interactively, it
segfaults just after it says,
[root@home4 yum.repos.d]# /usr/local/sbin/gmond -d 5 -c
/etc/ganglia/gmond.conf
loaded module: core_metrics
loaded module: python_module
loaded module: cpu_module
loaded module: disk_module
loaded module: load_module
loaded module: mem_module
loaded module: net_module
loaded module: proc_module
loaded module: sys_module
loaded module: python_module
Segmentation fault (core dumped)
I'm not sure where to begin checking. I'm a very old-fashioned
debugger - I tend to use a great deal of print statements to
track down where things are happening. I can start doing this
in gmond.
I tried putting fprintf's all over the gmond.c (yep - I'm that
poor of a debugger). I'm not sure but if looks like it segfaults
in the function setup_metric_callbacks on the statement,
if (modp-init modp-init(global_context)) {
or on the function,
apr_pool_cleanup_register(global_context, modp,
modular_metric_cleanup,
apr_pool_cleanup_null);
I'm not too sure.
I apologize if I'm wasting your time with my poor debugging
skills.
Thanks!
Jeff
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Re: [Ganglia-developers] gmond segfault with libpython
Sure - let me run off and do this.
In the meantime, I tried rebuilding ganglia with 3.5.0 and
3.4.0. For both of these cases, I get the same segfault. This
makes me think I'm doing something wrong but I can seem
to find it :)
I'll let you know what I find out as I go back to ganglia-3.6.0.
Thanks!
Jeff
Oh I didn't think about going that lowlevel :) Could you run ldd on
gmond also?
Could you also run 'tree' command on /etc/ganglia ? It's interesting
that you have two times msg: loaded module: python_module while
starting gmond. Rechecking this with strace log shows that it looks like
double loading of those modules? http://pastebin.com/BjdCGgbj
On Sun, Feb 09, 2014 at 03:28:10PM -0500, Jeff Layton wrote:
On 02/09/2014 02:48 PM, Jeff Layton wrote:
On 02/09/2014 02:28 PM, Maciej Lasyk wrote:
You could also try to catch on which particular check this segfault
happens..?
Not sure how to check this. When I run gmond interactively, it
segfaults just after it says,
[root@home4 yum.repos.d]# /usr/local/sbin/gmond -d 5 -c
/etc/ganglia/gmond.conf
loaded module: core_metrics
loaded module: python_module
loaded module: cpu_module
loaded module: disk_module
loaded module: load_module
loaded module: mem_module
loaded module: net_module
loaded module: proc_module
loaded module: sys_module
loaded module: python_module
Segmentation fault (core dumped)
I'm not sure where to begin checking. I'm a very old-fashioned
debugger - I tend to use a great deal of print statements to
track down where things are happening. I can start doing this
in gmond.
I tried putting fprintf's all over the gmond.c (yep - I'm that
poor of a debugger). I'm not sure but if looks like it segfaults
in the function setup_metric_callbacks on the statement,
if (modp-init modp-init(global_context)) {
or on the function,
apr_pool_cleanup_register(global_context, modp,
modular_metric_cleanup,
apr_pool_cleanup_null);
I'm not too sure.
I apologize if I'm wasting your time with my poor debugging
skills.
Thanks!
Jeff
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Re: [Ganglia-developers] gmond segfault with libpython
I hope this isn't too much output (I've heard about pastebin.com
but never really used it).
[root@home4 ganglia-3.6.0]# ldd /usr/local/sbin/gmond
linux-vdso.so.1 = (0x7fff667f6000)
libapr-1.so.0 = /usr/lib64/libapr-1.so.0 (0x7f6a24049000)
libresolv.so.2 = /lib64/libresolv.so.2 (0x00337dc0)
libganglia-3.6.0.so.0 = /usr/local/lib64/libganglia-3.6.0.so.0
(0x7f6a23e0d000)
libdl.so.2 = /lib64/libdl.so.2 (0x00337c40)
libnsl.so.1 = /lib64/libnsl.so.1 (0x003390c0)
libz.so.1 = /lib64/libz.so.1 (0x00337d00)
libpcre.so.0 = /lib64/libpcre.so.0 (0x003f7360)
libexpat.so.1 = /lib64/libexpat.so.1 (0x00337f80)
libconfuse.so.0 = /usr/lib64/libconfuse.so.0 (0x7f6a23bff000)
libpthread.so.0 = /lib64/libpthread.so.0 (0x00337c80)
libc.so.6 = /lib64/libc.so.6 (0x00337c00)
libuuid.so.1 = /lib64/libuuid.so.1 (0x00338380)
libcrypt.so.1 = /lib64/libcrypt.so.1 (0x00338c60)
/lib64/ld-linux-x86-64.so.2 (0x00337bc0)
libfreebl3.so = /usr/lib64/libfreebl3.so (0x00338ca0)
Below is the tree output:
[root@home4 ganglia-3.6.0]# tree /etc/ganglia
/etc/ganglia
??? conf.d
? ??? procstat.pyconf
??? gmetad.conf
??? gmond.conf
1 directory, 3 files
I looked at the strace file for process 3537 and I did see two places
where gmond does an access() on the python_modules directory.
Does gmond automatically look for the python modes so I don't need
to put them the modules section of gmond.conf?
Thanks a million!
Jeff
Oh I didn't think about going that lowlevel :) Could you run ldd on
gmond also?
Could you also run 'tree' command on /etc/ganglia ? It's interesting
that you have two times msg: loaded module: python_module while
starting gmond. Rechecking this with strace log shows that it looks like
double loading of those modules? http://pastebin.com/BjdCGgbj
On Sun, Feb 09, 2014 at 03:28:10PM -0500, Jeff Layton wrote:
On 02/09/2014 02:48 PM, Jeff Layton wrote:
On 02/09/2014 02:28 PM, Maciej Lasyk wrote:
You could also try to catch on which particular check this segfault
happens..?
Not sure how to check this. When I run gmond interactively, it
segfaults just after it says,
[root@home4 yum.repos.d]# /usr/local/sbin/gmond -d 5 -c
/etc/ganglia/gmond.conf
loaded module: core_metrics
loaded module: python_module
loaded module: cpu_module
loaded module: disk_module
loaded module: load_module
loaded module: mem_module
loaded module: net_module
loaded module: proc_module
loaded module: sys_module
loaded module: python_module
Segmentation fault (core dumped)
I'm not sure where to begin checking. I'm a very old-fashioned
debugger - I tend to use a great deal of print statements to
track down where things are happening. I can start doing this
in gmond.
I tried putting fprintf's all over the gmond.c (yep - I'm that
poor of a debugger). I'm not sure but if looks like it segfaults
in the function setup_metric_callbacks on the statement,
if (modp-init modp-init(global_context)) {
or on the function,
apr_pool_cleanup_register(global_context, modp,
modular_metric_cleanup,
apr_pool_cleanup_null);
I'm not too sure.
I apologize if I'm wasting your time with my poor debugging
skills.
Thanks!
Jeff
--
Managing the Performance of Cloud-Based Applications
Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
Read the Whitepaper.
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Re: [Ganglia-developers] gmond segfault with libpython
Could you post here your build options (that ones you entered while
./configure) and also could you paste gmond.conf into pastebin?
Also plz strace one more time, but now with strace -s 1024 -e trace=file
and paste the output to pastebin
On Sun, Feb 09, 2014 at 04:55:14PM -0500, Jeff Layton wrote:
I hope this isn't too much output (I've heard about pastebin.com
but never really used it).
[root@home4 ganglia-3.6.0]# ldd /usr/local/sbin/gmond
linux-vdso.so.1 = (0x7fff667f6000)
libapr-1.so.0 = /usr/lib64/libapr-1.so.0 (0x7f6a24049000)
libresolv.so.2 = /lib64/libresolv.so.2 (0x00337dc0)
libganglia-3.6.0.so.0 =
/usr/local/lib64/libganglia-3.6.0.so.0 (0x7f6a23e0d000)
libdl.so.2 = /lib64/libdl.so.2 (0x00337c40)
libnsl.so.1 = /lib64/libnsl.so.1 (0x003390c0)
libz.so.1 = /lib64/libz.so.1 (0x00337d00)
libpcre.so.0 = /lib64/libpcre.so.0 (0x003f7360)
libexpat.so.1 = /lib64/libexpat.so.1 (0x00337f80)
libconfuse.so.0 = /usr/lib64/libconfuse.so.0 (0x7f6a23bff000)
libpthread.so.0 = /lib64/libpthread.so.0 (0x00337c80)
libc.so.6 = /lib64/libc.so.6 (0x00337c00)
libuuid.so.1 = /lib64/libuuid.so.1 (0x00338380)
libcrypt.so.1 = /lib64/libcrypt.so.1 (0x00338c60)
/lib64/ld-linux-x86-64.so.2 (0x00337bc0)
libfreebl3.so = /usr/lib64/libfreebl3.so (0x00338ca0)
Below is the tree output:
[root@home4 ganglia-3.6.0]# tree /etc/ganglia
/etc/ganglia
??? conf.d
? ??? procstat.pyconf
??? gmetad.conf
??? gmond.conf
1 directory, 3 files
I looked at the strace file for process 3537 and I did see two places
where gmond does an access() on the python_modules directory.
Does gmond automatically look for the python modes so I don't need
to put them the modules section of gmond.conf?
Thanks a million!
Jeff
Oh I didn't think about going that lowlevel :) Could you run ldd on
gmond also?
Could you also run 'tree' command on /etc/ganglia ? It's interesting
that you have two times msg: loaded module: python_module while
starting gmond. Rechecking this with strace log shows that it looks like
double loading of those modules? http://pastebin.com/BjdCGgbj
On Sun, Feb 09, 2014 at 03:28:10PM -0500, Jeff Layton wrote:
On 02/09/2014 02:48 PM, Jeff Layton wrote:
On 02/09/2014 02:28 PM, Maciej Lasyk wrote:
You could also try to catch on which particular check this segfault
happens..?
Not sure how to check this. When I run gmond interactively, it
segfaults just after it says,
[root@home4 yum.repos.d]# /usr/local/sbin/gmond -d 5 -c
/etc/ganglia/gmond.conf
loaded module: core_metrics
loaded module: python_module
loaded module: cpu_module
loaded module: disk_module
loaded module: load_module
loaded module: mem_module
loaded module: net_module
loaded module: proc_module
loaded module: sys_module
loaded module: python_module
Segmentation fault (core dumped)
I'm not sure where to begin checking. I'm a very old-fashioned
debugger - I tend to use a great deal of print statements to
track down where things are happening. I can start doing this
in gmond.
I tried putting fprintf's all over the gmond.c (yep - I'm that
poor of a debugger). I'm not sure but if looks like it segfaults
in the function setup_metric_callbacks on the statement,
if (modp-init modp-init(global_context)) {
or on the function,
apr_pool_cleanup_register(global_context, modp,
modular_metric_cleanup,
apr_pool_cleanup_null);
I'm not too sure.
I apologize if I'm wasting your time with my poor debugging
skills.
Thanks!
Jeff
--
Managing the Performance of Cloud-Based Applications
Take advantage of what the Cloud has to offer - Avoid Common Pitfalls.
Read the Whitepaper.
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--
--
pozdrawiam,
Maciej Lasyk
GPG key ID: FFA8AEEC
GPG info: http://maciek.lasyk.info/gpg.txt
pgphnhmNENVnW.pgp
Description: PGP signature
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Re: [Ganglia-developers] GSoC application started, more help needed
Hi Daniel: https://twitter.com/igrigorik/status/432255646306537472 Perhaps we can invite Ilya to be a mentor? I believe he is (or at least was) a user of Ganglia and I think he works for Google now...? Cheers, Bernard On Friday, 7 February 2014, Daniel Pocock dan...@pocock.com.au wrote: Please feel free to add potential project ideas here: https://github.com/ganglia/monitor-core/wiki/GSoC-2014-project-ideas For an example of how the project ideas are documented in other organisations, see these pages: https://wiki.debian.org/SummerOfCode2014/Projects http://community.apache.org/gsoc.html For those who have a Google account, please also register at http://www.google-melange.com and ask to be added as a mentor for the Ganglia organisation If you are willing to be a mentor (or work as part of a joint mentoring team, which makes things easier for everybody), please include your name and a link to your blog or Github profile or something on the wiki. These things will help Ganglia's chance of getting selected. -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk ___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net javascript:; https://lists.sourceforge.net/lists/listinfo/ganglia-developers -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
[Ganglia-developers] How to display node title to node hostname instead of IP address?
Hi, I've installed the latest release ganglia web 3.5.11, it display the node with IP address in each node graphic. How can I change the node title to use node hostname not IP address? Thank you. -j -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk ___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
Re: [Ganglia-developers] How to display node title to node hostname instead of IP address?
Please make sure that the collector daemon has hostname entries in /etc/hosts for all the hosts involved. Once that's done, please restart everything. BTW, questions such as these should be asked in the ganglia-general mailing-list -- this list is reserved for development discussions. Thanks, Bernard On Sun, Feb 9, 2014 at 9:27 PM, jupiter jupiter@gmail.com wrote: Hi, I've installed the latest release ganglia web 3.5.11, it display the node with IP address in each node graphic. How can I change the node title to use node hostname not IP address? Thank you. -j -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk ___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121051231iu=/4140/ostg.clktrk ___ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
Re: [Ganglia-developers] gmond segfault with libpython
Do we still have a maintainer for the Ganglia packages for EPEL? If not, should we see if somebody would like to fill that position? Thanks, Bernard On Sun, Feb 9, 2014 at 6:15 PM, Vladimir Vuksan vli...@veus.hr wrote: Those RPMS work just fine for me [root@localhost ~]# uname -a Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux [root@localhost ~]# cat /etc/issue CentOS release 6.5 (Final) Kernel \r on an \m [root@localhost ~]# rpm -ivh http://vuksan.com/centos/RPMS-6/x86_64/ganglia-gmond-modules-python-3.6.0-1.x86_64.rpm http://vuksan.com/centos/RPMS-6/x86_64/libganglia-3.6.0-1.x86_64.rpm http://vuksan.com/centos/RPMS-6/x86_64/ganglia-gmond-3.6.0-1.x86_64.rpm http://vuksan.com/centos/RPMS-6/x86_64/libconfuse-2.6-2.el6.rf.x86_64.rpm Retrieving http://vuksan.com/centos/RPMS-6/x86_64/ganglia-gmond-modules-python-3.6.0-1.x86_64.rpm Retrieving http://vuksan.com/centos/RPMS-6/x86_64/libganglia-3.6.0-1.x86_64.rpm Retrieving http://vuksan.com/centos/RPMS-6/x86_64/ganglia-gmond-3.6.0-1.x86_64.rpm Retrieving http://vuksan.com/centos/RPMS-6/x86_64/libconfuse-2.6-2.el6.rf.x86_64.rpm warning: /var/tmp/rpm-tmp.JtASFF: Header V3 DSA/SHA1 Signature, key ID 6b8d79e6: NOKEY Preparing...### [100%] 1:libconfuse ### [ 25%] 2:libganglia ### [ 50%] 3:ganglia-gmond ### [ 75%] 4:ganglia-gmond-modules-p### [100%] [root@localhost ~]# gmond -d 2 loaded module: core_metrics loaded module: cpu_module loaded module: disk_module loaded module: load_module loaded module: mem_module loaded module: net_module loaded module: proc_module loaded module: sys_module loaded module: python_module udp_recv_channel mcast_join=239.2.11.71 mcast_if=NULL port=8649 bind=239.2.11.71 buffer=0 On 02/09/2014 09:39 AM, Jeff Layton wrote: Vladimir, I initially tried your binaries on my 6.5 system and I could not get them to install and run (I think they were built with a 6.3 system). At some point I'll try building the rpm's and installing those. Hopefully there is no different in the build process - that would be very interesting if the rpm's worked and building from source didn't :) I'll let you know - but first I'm going to try Maciej's strace idea. Thanks! Jeff P.S. There are some pretty significant differences between 6.4 and 6.5. One big one that I know of is the ntp format changed. I have not seen issues with Centos 6 however I usually build my RPM packages. You could do that if you type rpmbuild -tb ganglia-3.6.0.tar.gz Alternatively if you are interested to try prebuilt packages you can find them here. http://vuksan.com/centos/RPMS-6/x86_64/ Vladimir On 02/08/2014 11:11 AM, Jeff Layton wrote: Good morning, I'm running a CentOS 6.5 system with ganglia 3.6.0 and ganglia-web 3.5.12. I'm following the general guidelines in this article: http://sachinsharm.wordpress.com/tag/installing-ganglia/ Everything goes swimmingly and ganglia itself works fine. So I decide to go to the next step and try using Python with gmond. I followed the general guidelines in this article: http://sachinsharm.wordpress.com/2013/08/19/setup-and-configure-ganglia-python-modules-on-centosrhel-6-3/ But when I start up gmond I get a segfault as reported in /var/log/messages. Feb 5 19:58:47 home4 kernel: gmond[17992]: segfault at 8 ip 0036a7ce6ceb sp 7fffaad46bf0 error 4 in libpython2.6.so.1.0[36a7c0+15d000] Feb 5 19:58:47 home4 abrt[18003]: Saved core dump of pid 17992 (/usr/local/sbin/gmond) to /var/spool/abrt/ccpp-2014-02-05-19:58:47-17992 (4284416 bytes) Feb 5 19:58:47 home4 abrtd: Directory 'ccpp-2014-02-05-19:58:47-17992' creation detected Feb 5 19:58:47 home4 abrtd: Executable '/usr/local/sbin/gmond' doesn't belong to any package and ProcessUnpackaged is set to 'no' Feb 5 19:58:47 home4 abrtd: 'post-create' on '/var/spool/abrt/ccpp-2014-02-05-19:58:47-17992' exited with 1 Feb 5 19:58:47 home4 abrtd: Deleting problem directory '/var/spool/abrt/ccpp-2014-02-05-19:58:47-17992' I'm been trying to debug this but I have to admit that I'm coming up blank. Running gmond with debug doesn't give too much information: [root@home4 laytonjb]# gmond -d 5 -c /etc/ganglia/gmond.conf loaded module: core_metrics loaded module: cpu_module loaded module: disk_module loaded module: load_module loaded module: mem_module loaded module: net_module loaded module: proc_module loaded module: sys_module loaded module: python_module loaded module: python_module Segmentation fault (core dumped) I went back to the Mod_Python section of the book (p. 89) and tried to make things as simple as possible to trace down the
