From 7e90a3b592018f4e0d270d7102cf83aa3eb242d2 Mon Sep 17 00:00:00 2001 From: Kotresh HR Date: Tue, 19 Mar 2019 12:45:36 +0530 Subject: release-notes/6.0: Add ctime feature changes in release notes Change-Id: I3a305b9eb292a450c83de5628ceeadcb0a44afc7 updates: bz#1672818 Signed-off-by: Kotresh HR Signed-off-by: ShyamsundarR --- doc/release-notes/6.0.md | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'doc/release-notes/6.0.md') diff --git a/doc/release-notes/6.0.md b/doc/release-notes/6.0.md index dd0c3af4c3d..cbfa8a877e3 100644 --- a/doc/release-notes/6.0.md +++ b/doc/release-notes/6.0.md @@ -156,6 +156,31 @@ Samba unless either of 'user.cifs' or 'user.smb' volume set options are enabled on the volume. The existing GlusterFS volume share sections in smb.conf will remain unchanged. +#### 7. ctime feature is enabled by default + +The ctime feature which maintains (c/m) time consistency across replica and +disperse subvolumes is enabled by default. + +Also, with this release, a single option is provided to enable/disable ctime +feature, + +``` +#gluster vol set ctime +``` + +**NOTE:** The time information used is from clients, hence it's required that +clients are synced with respect to their times, using NTP or other such means. + +**Limitations:** +- Mounting gluster volume with time attribute options (noatime, realatime...) + is not supported with this feature +- This feature does not guarantee consistent time for directories if the hashed + sub-volume for the directory is down +- Directory listing is not supported with this feature, and may report + inconsistent time information +- Older files created before upgrade, would witness update of ctime upon + accessing after upgrade [BUG:1593542](https://bugzilla.redhat.com/show_bug.cgi?id=1593542) + ### Developer #### 1. Gluster code can be compiled and executed using [TSAN](https://clang.llvm.org/docs/ThreadSanitizer.html) -- cgit