jithujose's questions

Rsync is going into "interruptible sleep" mode after transferring some files from a local folder to a NFS folder. The folder I am trying to backup contains more than 180gb of data.

This is what rsync outputs before it hangs:

[sender] expand file_list pointer array to 524288 bytes, did move

I am running Ubuntu Server 14.04 LTS with rsync version 3.1.0 protocol version 31 and I am running rsync with these options:

/usr/bin/rsync -rHAXxvvut --numeric-ids --progress {SRC_FOLDER} {NFS_FOLDER}

Thanks for any hints

Someone knows how reddit manages to bypass cloudflare static html caching once the user logs in successfully with a reload of page?

I see that the current page gets reloaded after a successful login.

Response headers before login:

CF-Cache-Status: HIT
CF-RAY: 23b76b8270950e30-MXP
Cache-Control: max-age=0, must-revalidate
Content-Encoding: gzip
Content-Length: 20794
Content-Type: text/html; charset=UTF-8
Date: Mon, 26 Oct 2015 16:08:27 GMT
Server: cloudflare-nginx
Vary: Accept-Encoding
X-Firefox-Spdy: 3.1
X-Frame-Options: SAMEORIGIN
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
x-moose: majestic
x-ua-compatible: IE=edge
x-xss-protection: 1; mode=block

Response headers after login:

CF-RAY: 23b76cb065140e30-MXP
Cache-Control: private, s-maxage=0, max-age=0, must-revalidate, max-age=0, must-revalidate
Content-Encoding: gzip
Content-Length: 18697
Content-Type: text/html; charset=UTF-8
Date: Mon, 26 Oct 2015 16:09:16 GMT
Expires: -1
Server: cloudflare-nginx
Vary: accept-encoding
X-Firefox-Spdy: 3.1
X-Frame-Options: SAMEORIGIN
strict-transport-security: max-age=15552000; includeSubDomains; preload
x-content-type-options: nosniff
x-moose: majestic
x-ua-compatible: IE=edge
x-xss-protection: 1; mode=block

Thanks for any hints.

I am facing a strange problem with avconv which is a tool for processing videos part of libav-tools package.

I am on a local ubuntu server 14.04.1 LTS.

What happens is that the avconv tool is getting corrupted, basically /usr/bin/avconv is getting modified by something.

This is the output the file command gives when the command is not yet corrupted

avconv: ELF 64-bit LSB  executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=66393d9b38a75978d8cd1838e7b163dda04df7b9, stripped

When it's corrupted this is the output of file command:

avconv-corrupted-copy-1: ELF 64-bit
avconv-corrupted-copy-2: ELF 64-bit LSB  no file type, SPARC

There is a beanstalkd worker which uses the avconv command.

Sometimes I can see bash fork bombs (:(){ :|: & };:) in bash history.

It looks like this vm is completely compromised. Do you've any suggestions on how to understand the cause of this problem?

Update 11-02-2015: now the same thing happens with beanstalkd:

/usr/bin/beanstalkd: ELF 64-bit LSB  no file type, SPARC

I've reported it on launchpad too.