[collectd] Collectd on CentOS always broken?
O G
otis_junk at yahoo.com
Mon Apr 23 19:21:43 CEST 2012
Hi,
I've removed LoadPlugin syslog just in case. Yes, I can see Collectd is running with ps:
# ps auxww| grep collectd
root 1272 0.0 0.1 44464 740 ? Ssl 17:06 0:00 /opt/collectd/sbin/collectd -C /opt/collectd/etc/collectd.conf
Also, when I kill this process I see this in the log (/tmp/collectd.log in my case), so I know Collectd really is running before I kill it:
[2012-04-23 17:06:21] [info] Exiting normally.
[2012-04-23 17:06:21] [info] collectd: Stopping 5 read threads.
And when I start it, I see the following in /tmp/collectd.log:
[2012-04-23 17:06:52] [info] Initialization complete, entering read-loop.
[2012-04-23 17:06:52] [warning] plugin_dispatch_values: No write callback has been registered. Please load at least one output plugin, if you want the collected data to be stored.
[2012-04-23 17:06:52] [info] Filter subsystem: Built-in target `write': Dispatching value to all write plugins failed with status 2 (ENOENT). Most likely this means you didn't load any write plugins.
... the last [info] line above keeps repeating as collectd is running ...
So this "No write callback has been registered. Please load at least one output plugin, if you want the collected data to be stored" log message really looks weird.
What "output plugin" is this referring to? I do have "LoadPlugin cpu" and that should be writing CPU usage info to the log file under /opt/collectd/var/lib/collectd/.
Here is a part of lsof output that shows cpu and logfile plugins are loaded. There is also a reference to /opt/collectd/var/lib/collectd directory that should have files with Collectd data, but doesn't:
# lsof | grep collectd
collectd 1272 root cwd DIR 202,1 4096 133804 /opt/collectd/var/lib/collectd
collectd 1272 root mem REG 202,1 12814 133591 /opt/collectd/lib/collectd/cpu.so
collectd 1272 root mem REG 202,1 16189 133621 /opt/collectd/lib/collectd/logfile.so
...
As for strace output, here it is:
execve("/opt/collectd/sbin/collectd", ["/opt/collectd/sbin/collectd", "-C", "/opt/collectd/etc/collectd.conf"], [/* 31 vars */]) = 0
brk(0) = 0x9f9a000
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77a9000
access("/etc/ld.so.preload", R_OK) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=18810, ...}) = 0
mmap2(NULL, 18810, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb77a4000
close(3) = 0
open("/lib/i686/nosegneg/librt.so.1", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200\30\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=39676, ...}) = 0
mmap2(NULL, 33332, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb779b000
mmap2(0xb77a2000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6) = 0xb77a2000
close(3) = 0
open("/lib/libresolv.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240&\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=103384, ...}) = 0
mmap2(NULL, 104520, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7781000
mprotect(0xb7796000, 4096, PROT_NONE) = 0
mmap2(0xb7797000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x15) = 0xb7797000
mmap2(0xb7799000, 6216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7799000
close(3) = 0
open("/lib/i686/nosegneg/libpthread.so.0", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0pL\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=131044, ...}) = 0
mmap2(NULL, 106976, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7766000
mmap2(0xb777d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16) = 0xb777d000
mmap2(0xb777f000, 4576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb777f000
close(3) = 0
open("/lib/libdl.so.2", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\n\0\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=17892, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7765000
mmap2(NULL, 16500, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7760000
mmap2(0xb7763000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x2) = 0xb7763000
close(3) = 0
open("/lib/i686/nosegneg/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\3\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0 at n\1\0004\0\0\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1893680, ...}) = 0
mmap2(NULL, 1657224, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb75cb000
mprotect(0xb7759000, 4096, PROT_NONE) = 0
mmap2(0xb775a000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x18e) = 0xb775a000
mmap2(0xb775d000, 10632, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb775d000
close(3) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb75ca000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb75ca6c0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb775a000, 8192, PROT_READ) = 0
mprotect(0xb7763000, 4096, PROT_READ) = 0
mprotect(0xb777d000, 4096, PROT_READ) = 0
mprotect(0xb7797000, 4096, PROT_READ) = 0
mprotect(0xb77a2000, 4096, PROT_READ) = 0
mprotect(0xb77c9000, 4096, PROT_READ) = 0
munmap(0xb77a4000, 18810) = 0
set_tid_address(0xb75ca728) = 1324
set_robust_list(0xb75ca730, 0xc) = 0
futex(0xbf97ee10, FUTEX_WAKE_PRIVATE, 1) = 0
futex(0xbf97ee10, FUTEX_WAIT_BITSET_PRIVATE|FUTEX_CLOCK_REALTIME, 1, NULL, bf97ee20) = -1 EAGAIN (Resource temporarily unavailable)
rt_sigaction(SIGRTMIN, {0xb776a6a0, [], SA_SIGINFO}, NULL, 8) = 0
rt_sigaction(SIGRT_1, {0xb776ab40, [], SA_RESTART|SA_SIGINFO}, NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
uname({sys="Linux", node="domU-12-31-38-00-A8-F5", ...}) = 0
brk(0) = 0x9f9a000
brk(0x9fbb000) = 0x9fbb000
stat64("/opt/collectd/etc/collectd.conf", {st_mode=S_IFREG|0644, st_size=24208, ...}) = 0
open("/opt/collectd/etc/collectd.conf", O_RDONLY) = 3
ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbf97c978) = -1 ENOTTY (Inappropriate ioctl for device)
fstat64(3, {st_mode=S_IFREG|0644, st_size=24208, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77a8000
read(3, "#\n# Config file for collectd(1)."..., 8192) = 8192
read(3, "\tIgnoreSource \"192.168.0.1\"\n#\tSe"..., 8192) = 8192
read(3, "queries\"\n# Socket \"/var/run/p"..., 8192) = 7824
read(3, "", 4096) = 0
read(3, "", 8192) = 0
ioctl(3, SNDCTL_TMR_TIMEBASE or TCGETS, 0xbf97c978) = -1 ENOTTY (Inappropriate ioctl for device)
close(3) = 0
munmap(0xb77a8000, 4096) = 0
open("/opt/collectd/share/collectd/types.db", O_RDONLY|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=6710, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb77a8000
read(3, "absolute\t\tvalue:ABSOLUTE:0:U\napa"..., 4096) = 4096
read(3, "nter\tvalue:DERIVE:0:U\nps_code\t\t\t"..., 4096) = 2614
read(3, "", 4096) = 0
close(3) = 0
munmap(0xb77a8000, 4096) = 0
open("/opt/collectd/lib/collectd", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
fcntl64(3, F_GETFD) = 0x1 (flags FD_CLOEXEC)
getdents64(3, /* 194 entries */, 32768) = 6536
lstat64("/opt/collectd/lib/collectd/logfile.so", {st_mode=S_IFREG|0755, st_size=16189, ...}) = 0
futex(0xb7764068, FUTEX_WAKE_PRIVATE, 2147483647) = 0
open("/opt/collectd/lib/collectd/logfile.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\340\7\0\0004\0\0\0"..., 512) = 512
fstat64(4, {st_mode=S_IFREG|0755, st_size=16189, ...}) = 0
mmap2(NULL, 9308, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb77a6000
mmap2(0xb77a8000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0x1) = 0xb77a8000
close(4) = 0
close(3) = 0
open("/opt/collectd/lib/collectd", O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_CLOEXEC) = 3
getdents64(3, /* 194 entries */, 32768) = 6536
lstat64("/opt/collectd/lib/collectd/cpu.so", {st_mode=S_IFREG|0755, st_size=12814, ...}) = 0
open("/opt/collectd/lib/collectd/cpu.so", O_RDONLY) = 4
read(4, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\6\0\0004\0\0\0"..., 512) = 512
fstat64(4, {st_mode=S_IFREG|0755, st_size=12814, ...}) = 0
mmap2(NULL, 7908, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 4, 0) = 0xb77a4000
mmap2(0xb77a5000, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 4, 0) = 0xb77a5000
close(4) = 0
close(3) = 0
chdir("/opt/collectd/var/lib/collectd") = 0
rt_sigaction(SIGCHLD, {SIG_IGN, [], 0}, NULL, 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb75ca728) = 1325
exit_group(0) = ?
Thanks!
Otis
----- Original Message -----
From: "Crowder, Travis" <Travis.Crowder at penton.com>
To: O G <otis_junk at yahoo.com>; "collectd at verplant.org" <collectd at verplant.org>
Cc:
Sent: Monday, April 23, 2012 12:25 PM
Subject: RE: [collectd] Collectd on CentOS always broken?
I don't think you can use two logs, but I am not positive on this. You are using syslog and a logfile with that config. I am not sure which one load, or if either does.
What is in your /tmp/collectd.log?
Do you get any errors when you configure or make?
When you start collectd, are you able to verify it is still running via top or ps?
If there is nothing in the /tmp/collectd.log and the process isn't running after you start it, can you start it with strace and post the output?
-Travis
-----Original Message-----
From: collectd-bounces at verplant.org [mailto:collectd-bounces at verplant.org] On Behalf Of O G
Sent: Monday, April 23, 2012 11:17 AM
To: collectd at verplant.org
Subject: Re: [collectd] Collectd on CentOS always broken?
Hi Travis,
Thanks for replying! I'm using this minimalistic collectd.conf:
####
Hostname "localhost"
FQDNLookup true
BaseDir "/opt/collectd/var/lib/collectd"
PIDFile "/opt/collectd/var/run/collectd.pid"
PluginDir "/opt/collectd/lib/collectd"
TypesDB "/opt/collectd/share/collectd/types.db"
#Interval 10
#Timeout 2
#ReadThreads 5
LoadPlugin syslog
LoadPlugin logfile
<Plugin logfile>
LogLevel info
File "/tmp/collectd.log"
Timestamp true
PrintSeverity true
</Plugin>
<Plugin syslog>
LogLevel info
</Plugin>
LoadPlugin cpu
####
I've now also compiled and installed collectd 5.1.0 by hand (configure, make, make install) on "Amazon Linux AMI" (something based on RedHat, it seems, since it has yum) and I got the exact same error message. So I'm starting to suspect I'm doing something wrong with Collectd.
Also:
# /opt/collectd/sbin/collectd -help
...
Builtin defaults:
Config file /opt/collectd/etc/collectd.conf
PID file /opt/collectd/var/run/collectd.pid
Plugin directory /opt/collectd/lib/collectd
Data directory /opt/collectd/var/lib/collectd <== nothing shows up here or in /opt/collectd/var/log/ collectd 5.1.0, http://collectd.org/
I've tried starting Collectd like this:
# /opt/collectd/sbin/collectd -C /opt/collectd/etc/collectd.conf
As well we like this:
# /opt/collectd/sbin/collectdmon -c /opt/collectd/etc/collectd.conf
Any help would be greatly appreciated.
Thanks!
Otis
----- Original Message -----
From: Travis Crowder <travis.crowder at spechal.com>
To: O G <otis_junk at yahoo.com>
Cc:
Sent: Sunday, April 22, 2012 1:21 PM
Subject: Re: [collectd] Collectd on CentOS always broken?
On 4/21/2012 11:25 PM, O G wrote:
> Hello,
> Is there a version of CentOS with a working Collectd?
> I have tried several CentOS 5.* and 6.* versions where I installed Collectd with yum install collectd and each of them had a non-working Collectd.
> This is a common error message I'd find in /var/log/messages:
> Filter subsystem: Built-in target `write': Dispatching value to all
>write plugins failed with status 2 (ENOENT). Most likely this means you
>didn't load any write plugins
> Of course, there were plugins in collectd.conf that write stuff to filesytem.
> Is there a version of CentOS with a working Collectd?
> Thanks,
> Otis
>
> _______________________________________________
> collectd mailing list
> collectd at verplant.org
> http://mailman.verplant.org/listinfo/collectd
I use Collectd exclusively on CentOS servers; CentOS 5 and CentOS 6. I install via YUM and build from source without issue.
Can you post your collectd.conf from /etc/ or /opt/collectd/etc ?
-Travis
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