Open Source

Compiling bacula client gives link errors

Leave a Comment / Bacula, ezjail, File Systems, FreeBSD, ZFS / By /

I was trying to recompile sysutils/bacula-client on a FreeBSD 8.4 jail when I encountered some perplexing link errors. It took me a while to figure it out, but with the help of some IRC conversation, we figured it out. I started off by deleting the old (quite old) port: bacula-client-5.0.3 Then I recompiled: cd /usr/ports/sysutils/bacula-client && make install clean The errors in question are: I tried recompiling a few ports, such as gettext. […]

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FATAL: could not create shared memory segment: Function not implemented

Leave a Comment / ezjail, FreeBSD, Jails / By /

I recently upgraded a jail server from FreeBSD 8.2 to FreeBSD 8.4. This stopped various jails from starting their own instances of PostgreSQL. The messages in the logs were: Jul 9 14:48:48 building postgres[40785]: [2-1] FATAL: could not create shared memory segment: Function not implemented Jul 9 14:48:48 building postgres[40785]: [2-2] DETAIL: Failed system call was shmget(key=5432001, size=12099584, 03600). In my jails, I was seeing: $ sysctl security.jail.sysvipc_allowed security.jail.sysvipc_allowed: 0 Looking at my

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nrpe: Could not read request from client, bailing out…

Leave a Comment / FreeBSD, Jails / By /

I recently upgraded a jail server from FreeBSD 8.2 to 8.4, and part of that process involved recompiling all of the applications. Along the way, nrpe on one jail stopped working. Nagios was reporting: CHECK_NRPE: Socket timeout after 10 seconds. Trying from the command line gave: $ /usr/local/libexec/nagios/check_nrpe2 -H -H dbclone.example.org -c check_pgsql -t 1 CHECK_NRPE: Socket timeout after 1 seconds. Other jails worked just fine: $ /usr/local/libexec/nagios/check_nrpe2 -H building.unixathome.org -c check_pgsql -t

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discard frame w/o leading ethernet header

Leave a Comment / FreeBSD, Networks / By /

The other day, I disconnected the ethernet cable from my gateway to reroute the cable. Then, perhaps coincidentally, I started seeing these entries: Jul 2 15:19:57 bast kernel: fxp0: discard frame w/o leading ethernet header (len 4294967294 pkt len 4294967294) Jul 2 15:28:01 bast kernel: fxp0: discard frame w/o leading ethernet header (len 4294967294 pkt len 4294967294) Jul 2 15:28:02 bast kernel: fxp0: discard frame w/o leading ethernet header (len 4294967294 pkt len

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viewvc errors after upgrading subversion

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After upgrading subversion on my svn server, I started seeing this errors from viewvc: An Exception Has Occurred Python Traceback Traceback (most recent call last): File “/usr/local/viewvc/lib/viewvc.py”, line 4827, in main request.run_viewvc() File “/usr/local/viewvc/lib/viewvc.py”, line 251, in run_viewvc self.rootpath = vclib.svn.canonicalize_rootpath(rootpath) File “/usr/local/viewvc/lib/vclib/svn/__init__.py”, line 39, in canonicalize_rootpath rootpath = _canonicalize_path(rootpath) File “/usr/local/viewvc/lib/vclib/svn/__init__.py”, line 23, in _canonicalize_path import svn.core File “/usr/local/lib/python2.7/site-packages/svn/core.py”, line 26, in from libsvn.core import * File “/usr/local/lib/python2.7/site-packages/libsvn/core.py”, line 26, in _core

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pg_restore: [custom archiver] could not read from input file: end of file

3 Comments / PostgreSQL / By / /

I’ve been a fan of PostgreSQL since 2000 when I switched to it from MySQL. I wanted stored procedures and functions. I got that with PostgreSQL. I was used to having such features from my years working with other big databases such as DB2, Oracle, and Sybase. I’ve been moving towards using the custom format of pg_dump. In conjunction with that, I’ve been using pg_restore for testing those dumps. As part of my

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Authentication tried for dan with correct key but not from a permitted host

2 Comments / FreeBSD, Open Source, ssh / By /

I kept seeing these messages: Jun 12 04:09:18 nyi sshd[94523]: Authentication tried for dan with correct key but not from a permitted host (host=dbclone.example.org, ip=10.6.0.9). Jun 12 04:09:18 nyi sshd[94523]: Authentication tried for dan with correct key but not from a permitted host (host=dbclone.example.org, ip=10.6.0.9). I’ve been seeing them for a long time. How long? Three years. I didn’t think it was that long. But back in July 2010 I mentioned it. After

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sshd: error: key_read: uudecode failed

1 Comment / Open Source, ssh / By /

I started seeing this error: Jun 10 19:12:38 nyi sshd[92208]: error: key_read: uudecode AAAAB3NzaC1yc2EAAAABJQAAAIBdX/USEtxnO91Vpujney8gwkq2sRrcU9R6nKAoGv1eNMWrMD9a93kZMjR4fFMAH87g+zyHBftxCsyE0wJX2A0UFgIQsiuOOINkTJMyk\n failed I couldn’t figure it out. Then I searched ~/.ssh/authorized_keys for that string. I found it in there. But the line was incomplete. It looked like I’d deleted the last part of the line. It should end with something like this: … onsnJNGeljjf9i8U3aorbSZj3jiEuTYMoTi9XK2dvGh5bbEQggw47jQg= dan@bigtimes.example.org Solution: I deleted that line. Then I copy/pasted the public key back into the file

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Converting from cvs to svn

Leave a Comment / Open Source, subversion / By /

I started playing with cvs2svn, a tool for migrating a CVS repository to Subversion. cvs2svn does more than just Subversion. It also handles git and Bazaar. Why am I moving from cvs? I couldn’t get my existing cvsupd server to run on a new server. Attempts to start cvsupd gave: $ sudo /usr/local/etc/rc.d/cvsupd onestart Starting cvsupd. 2013.06.10 15:35:22 UTC [35995]: CVSup server started 2013.06.10 15:35:22 UTC [35995]: Software version: SNAP_16_1h 2013.06.10 15:35:22 UTC

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Using compression with PostgreSQL’s pg_dump

4 Comments / databases, Open Source, PostgreSQL / By / /

I attended a few of the talks at PGCon 2013 last month. One talk, for which I took several notes and made a few choice tweets. The main one I’m following up on is using the -Fc option on pg_dump. It was during Magnus Haganders’ talk on PostgreSQL Backup Strategies that I posted that tweet. In the two weeks since that talk, I managed to do some testing. Let’s have a look at

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