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.

HTTPS+SSLVerifyClient require in <Directory>+big POST = Apache error

I was configuring MediaWiki to allow uploads and was getting an error in the browser about the POST data being too large (“does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit.”). I had a look in the Apache error log and found:

[Thu Feb 23 16:12:45 2012] [error] [client 60.240.67.126] request body exceeds m
aximum size (131072) for SSL buffer, referer: https://www.jj5.net/morpheus/Speci
al:Upload
[Thu Feb 23 16:12:45 2012] [error] [client 60.240.67.126] could not buffer messa
ge body to allow SSL renegotiation to proceed, referer: https://www.jj5.net/morp
heus/Special:Upload

So I did some research. I found this document, File upload size which suggested editing /etc/php5/apache2/php.ini which I did:

upload_max_filesize = 20M
post_max_size = 80M

That didn’t fix the problem though. I found Request entity too large which suggested checking my setting for LimitRequestBody, but that wasn’t the problem either.

Eventually I found Bug 491763 – HTTPS+SSLVerifyClient require in <Directory>+big POST = Apache error which suggested I needed to apply the SSLRenegBufferSize directive which I did like this:

  <Location /morpheus>
    SSLVerifyClient require
    SSLVerifyDepth 1
    SSLRenegBufferSize 20971520
  </Location>

And then after restarting Apache the problem was solved.