[Bugs] [Bug 1232678] Disperse volume : data corruption with appending writes in 8+4 config

bugzilla at redhat.com bugzilla at redhat.com
Wed Jun 17 09:44:50 UTC 2015


https://bugzilla.redhat.com/show_bug.cgi?id=1232678



--- Comment #1 from Pranith Kumar K <pkarampu at redhat.com> ---
Steps to Reproduce:
1. Create 8+4 volume and fuse mount on the client
2. Create files with varying block sizes and random data
4. Calculate md5sum of all the files
3. Take down 1 to 5 bricks one after another and compute md5sum of files every
time the brick is down
4. Compare md5sum of files before taking down the brick and after taking down
the bricks.
5. 

Actual results:
===============
Corruption

Expected results: 
=================
On the same mount, md5sum should match

--- Additional comment from Pranith Kumar K on 2015-06-11 11:28:00 EDT ---

The command to be used to compute the md5sums is "for i in {1..100}; do md5sum
dir.1/testfile.$i >> md5sum.txt; done" If we compute this with taking bricks
down, sometimes the file md5sum.txt will not have the content it is supposed to
have.

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