[Bugs] [Bug 1248393] New: DHT: readdirp fails to read some directories.

bugzilla at redhat.com bugzilla at redhat.com
Thu Jul 30 08:22:48 UTC 2015


            Bug ID: 1248393
           Summary: DHT: readdirp fails to read some directories.
           Product: GlusterFS
           Version: mainline
         Component: distribute
          Assignee: bugs at gluster.org
          Reporter: sabansal at redhat.com
                CC: bugs at gluster.org, gluster-bugs at redhat.com

Description of problem:
readdirp sometimes fails to reads few directory entries.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:

Actual results:

Expected results:

Additional info:

readdirp only reads entries if they are present on hashed subvol. 

1) During a parallel lookup and rebalance, if the fix-layout on parent
directory changes the hashed subvol of its child directory, and a lookup at
that time on parent directory would not read the child directory.

2) Due to some anomalies a directory may not be present on the hashed subvol.
Hence this entry will not be read.

3) During a rebalance if the first_up_subvol is the newly added brick, it may
not have all directories. Again few directories are not read.

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