Description of problem: When a single call to an ordered bucket listing contains only common prefixes (i.e., delimiter is set), it's possible for the code to get stuck. Version-Release number of selected component (if applicable): How reproducible: Very. Steps to Reproduce: 1. Create a bucket in s3 that contains over 1000 entries with no "objects" at the top level and only "subdirectories". 2. Use s3cmd to list that bucket Actual results: No results provided; code is in infinite loop. Expected results: Listing produced. Additional info: See upstream tracker: https://tracker.ceph.com/issues/45955
Please specify the severity of this bug. Severity is defined here: https://bugzilla.redhat.com/page.cgi?id=fields.html#bug_severity.
The fix for this already exists and was intended for a code clean-up. But it also addresses this issue. The reason is subtle -- a logging message at level 20 was used to, as a side-effect, increment a loop control variable. But due to optimizations, the code (and side-effect) is never executed unless the logging level is 20 or above.
commit added to ceph-4.1-rhel-patches-STAGE
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Red Hat Ceph Storage 4.1 Bug Fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:4144