I had an issue with Apache2 improperly serving a JavaScript file which I seem to have fixed by making sure the file was terminated with a new-line character… this was really hard to diagnose and resolve! The behaviour in Firefox was that the file just didn’t finish to download, whereas the Apache2 logs indicated a 200 result… I think it may have had something to do with automatic compression, which is a dark art that I do not understand (mumbles something about mod deflate…).
Tag Archives: error
rsync errors
I was having an issue with my rsync command:
time rsync --progress --verbose --acls --xattrs --exclude="/lib/mysql/ibdata1" --exclude="*.tmp" --stats --human-readable --recursive --del --force --times --links --hard-links --executability --numeric-ids --owner --group --perms --sparse --compress-level=6 diligence-test:/usr/ /data/temp/2017-11-15-163925/usr/
getting stuck during “receiving incremental file list” then giving up with:
Timeout, server diligence-test not responding. rsync: connection unexpectedly closed (16384 bytes received so far) [receiver] rsync error: error in rsync protocol data stream (code 12) at io.c(235) [receiver=3.1.2] rsync: connection unexpectedly closed (32569 bytes received so far) [generator] rsync error: unexplained error (code 255) at io.c(235) [generator=3.1.2] Command exited with non-zero status 255
I could see the server-side process hang in select() with:
root@diligence-test:/home/jj5# ps aux | grep rsync
root 5421 0.0 0.1 15636 2660 ? Ss 18:55 0:00 rsync --server --sender -vlHogtpAXrSe.iLsfxC --numeric-ids . /usr/
root@diligence-test:/home/jj5# strace -p 5421
strace: Process 5421 attached
select(1, [0], [], [0], {42, 979828}) = 0 (Timeout)
Anyway I figured out how to dodge the problem by nominating –delete-before instead of –del, e.g.:
time rsync --progress --verbose --acls --xattrs --exclude="/lib/mysql/ibdata1" --exclude="*.tmp" --stats --human-readable --recursive --delete-before --force --times --links --hard-links --executability --numeric-ids --owner --group --perms --sparse --compress-level=6 diligence-test:/usr/ /data/temp/2017-11-15-163925/usr/
Error in rsync protocol data stream
So I was running a backup with rsync and I saw this:
lib/mysql/ibdata1
437.40M 33% 4.53MB/s 0:03:10
inflate returned -3 (0 bytes)
rsync error: error in rsync protocol data stream (code 12) at token.c(557) [receiver=3.1.2]
rsync: connection unexpectedly closed (155602 bytes received so far) [generator]
rsync error: error in rsync protocol data stream (code 12) at io.c(235) [generator=3.1.2]
The issue seems to be that if you’re using rsync compression and the remote file gets changed while the rsync copy is in progress then shit gets corrupted. My solution was to handle error level ’12’ and retry without compression. If the file changes while the rsync is in progress the file will be corrupt, so you shouldn’t rely on the integrity of such files.
Fixing bug in /etc/cron.daily/etckeeper on Ubuntu Lucid
Reply
I was getting an error like this:
/etc/cron.daily/etckeeper:
bzr: ERROR: exceptions.UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 34: ordinal not in range(128)
Traceback (most recent call last):
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 853, in exception_to_return_code
return the_callable(*args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 1055, in run_bzr
ret = run(*run_argv)
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 661, in run_argv_aliases
return self.run_direct(**all_cmd_args)
File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 665, in run_direct
return self._operation.run_simple(*args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 122, in run_simple
self.cleanups, self.func, *args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 156, in _do_with_cleanups
result = func(*args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/builtins.py", line 659, in run
no_recurse, action=action, save=not dry_run)
File "/usr/lib/python2.6/dist-packages/bzrlib/mutabletree.py", line 50, in tree_write_locked
return unbound(self, *args, **kwargs)
File "/usr/lib/python2.6/dist-packages/bzrlib/mutabletree.py", line 521, in smart_add
for subf in sorted(os.listdir(abspath)):
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc4 in position 34: ordinal not in range(128)
bzr 2.1.4 on python 2.6.5 (Linux-2.6.35.4-rscloud-x86_64-with-Ubuntu-10.04-lucid)
arguments: ['/usr/bin/bzr', 'add', '-q', '.']
encoding: 'ANSI_X3.4-1968', fsenc: 'ANSI_X3.4-1968', lang: None
plugins:
bzrtools /usr/lib/python2.6/dist-packages/bzrlib/plugins/bzrtools [2.1.0]
etckeeper /usr/lib/python2.6/dist-packages/bzrlib/plugins/etckeeper [unknown]
launchpad /usr/lib/python2.6/dist-packages/bzrlib/plugins/launchpad [2.1.4]
netrc_credential_store /usr/lib/python2.6/dist-packages/bzrlib/plugins/netrc_credential_store [2.1.4]
news_merge /usr/lib/python2.6/dist-packages/bzrlib/plugins/news_merge [2.1.4]
*** Bazaar has encountered an internal error. This probably indicates a
bug in Bazaar. You can help us fix it by filing a bug report at
https://bugs.launchpad.net/bzr/+filebug
including this traceback and a description of the problem.
etckeeper warning: bzr add failed
Committing to: /etc/
modified apache2/passwd.htdigest
modified apache2/sites-available/svn.jj5.net-ssl
Committed revision 87.
I’ve tried to fix it by adding:
export LANG=en_AU.UTF-8 export LANGUAGE=en_AU:en
As lines 2 and 3 in /etc/cron.daily/etckeeper.
Now I’ll wait a day or two and see if it worked…
gnutls_handshake failed using git
Today I ran into this error:
jj5@mercy:~/public-git$ git push origin master error: gnutls_handshake() failed: A TLS warning alert has been received. while accessing https://demo@demo.personalserver.com/public/git/info/refs
The solution, of all things, was to add a ServerName spec into my Apache configuration file /etc/apache2/sites-enabled/default-ssl.conf, e.g.:
ServerName demo.personalserver.com
Bug fixed!!
Debian DPMSControl error
I got an error in KDE on Debian complaining about DPMSControl something or other.
I found this conversation and learned:
xset dpms 0 0 0 xset s off
AngularJS: Error: Duplicates in a repeater are not allowed
Using AngularJS I was getting the error “Error: Duplicates in a repeater are not allowed.” I found a comment on StackOverflow that suggested instead of:
<div ng-repeat="row in [1,1,1]">
To use:
<div ng-repeat="row in [1,1,1] track by $index">
A magical ‘track by $index’!
Robots HTML META tags
Today I added the Robots <META> tag with noindex, nofollow to my HTML error documents.
UnsupportedClassVersionError in Closure
Today while Getting Started with the Closure Compiler Application I ran into the following trouble:
jj5@mercy:~/Desktop/compiler-latest$ java -jar compiler.jar --help
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/google/javascript/jscomp/CommandLineRunner : Unsupported major.minor version 51.0
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:277)
at java.net.URLClassLoader.access$000(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:212)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
Could not find the main class: com.google.javascript.jscomp.CommandLineRunner. Program will exit.
To fix the problem I installed jdk-7:
root@mercy:/home/jj5# apt-get install openjdk-7-dbg openjdk-7-demo openjdk-7-doc openjdk-7-jdk openjdk-7-jre
Fixing mailman can’t discard/defer message via web config
I had a notice from Mailman for one of my lists that there was a message that required administrative attention (i.e. it was spam). The mailman web-interface provides a facility for treating email, however when I went to discard the message it wouldn’t go away. I tried a heap of things and it took a long time to figure out, but eventually I noticed that in the mailman web page the domain name it was using was “intranet.blackbrick.com” whereas that should have been “www.intranet.blackbrick.com”. So I did a little searching about how to configure a list’s base URL and discovered this, which fixed my issue:
/usr/lib/mailman/bin/withlist -l -r fix_url support \ --urlhost=www.intranet.blackbrick.com
Where ‘support’ above is ‘list name’.