Message ID | 1442694159-4809-1-git-send-email-aatteka@nicira.com |
---|---|
State | Accepted |
Headers | show |
On Sat, Sep 19, 2015 at 01:22:39PM -0700, Ansis Atteka wrote: > It seems that we haven't defined clear process on how features should > be removed from OVS. This patch attempts to document this process. > > Singed-off-by: Ansis Atteka <aatteka@nicira.com> s/Singed/Signed/ Acked-by: Ben Pfaff <blp@nicira.com> I like this but I think we should wait until others have a chance to give feedback on this. > +Remember to followup and acctually remove the feature from OVS codebase > +once deprecation grace period has expired! s/acctually/actually/
On Sat, Sep 19, 2015 at 01:22:39PM -0700, Ansis Atteka wrote: > It seems that we haven't defined clear process on how features should > be removed from OVS. This patch attempts to document this process. > > Singed-off-by: Ansis Atteka <aatteka@nicira.com> > --- LGTM Acked-by: Flavio Leitner <fbl@sysclose.org>
On Sat, Sep 19, 2015 at 01:22:39PM -0700, Ansis Atteka wrote: > It seems that we haven't defined clear process on how features should > be removed from OVS. This patch attempts to document this process. > > Singed-off-by: Ansis Atteka <aatteka@nicira.com> > --- > CONTRIBUTING.md | 31 +++++++++++++++++++++++++++++++ > 1 file changed, 31 insertions(+) > > diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md > index 12cb7dc..12d2a77 100644 > --- a/CONTRIBUTING.md > +++ b/CONTRIBUTING.md > @@ -24,6 +24,8 @@ In particular: > > - A patch that adds or removes user-visible features should > also update the appropriate user documentation or manpages. > + Check "Feature Deprecation Guidelines" section in this document > + if you intend to remove user-visible feature. > > Testing is also important: > > @@ -263,6 +265,35 @@ certifies the following: > maintained indefinitely and may be redistributed consistent with > this project or the open source license(s) involved. > > +Feature Deprecation Guidelines > +------------------------------ > + > +Open vSwitch is intended to be user friendly. This means that under > +normal circumstances we don't abruptly remove features from OVS that > +some users might still be using. Otherwise, if we would, then we would > +possibly break our user setup when they upgrade and would receive bug > +reports. > + > +Typical process to deprecate a feature in Open vSwitch is to: > + > + (a) Mention deprecation of a feature in the NEWS file. Also, mention > + expected release or absolute time when this feature would be removed > + from OVS altogether. Don't use relative time (e.g. "in 6 months") > + because that is not clearly interpretable. > + > + (b) If Open vSwitch is configured to use deprecated feature it should print > + a warning message to the log files clearly indicating that feature is > + deprecated and that use of it should be avoided. > + > + (c) If this feature is mentioned in man pages, then add "Deprecated" keyword > + to it. > + > +Also, if there is alternative feature to the one that is about to be marked > +as deprecated, then mention it in (a), (b) and (c) as well. > + > +Remember to followup and acctually remove the feature from OVS codebase > +once deprecation grace period has expired! > + > Comments > -------- > > -- > 2.1.4 Should it make it clear that deprecation before removal should be part of a release? Otherwise, users will not notice the deprecation before the feature is removed. Cascardo.
On Tue, Sep 22, 2015 at 4:21 AM, Thadeu Lima de Souza Cascardo <cascardo@redhat.com> wrote: > On Sat, Sep 19, 2015 at 01:22:39PM -0700, Ansis Atteka wrote: >> It seems that we haven't defined clear process on how features should >> be removed from OVS. This patch attempts to document this process. >> >> Singed-off-by: Ansis Atteka <aatteka@nicira.com> >> --- >> CONTRIBUTING.md | 31 +++++++++++++++++++++++++++++++ >> 1 file changed, 31 insertions(+) >> >> diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md >> index 12cb7dc..12d2a77 100644 >> --- a/CONTRIBUTING.md >> +++ b/CONTRIBUTING.md >> @@ -24,6 +24,8 @@ In particular: >> >> - A patch that adds or removes user-visible features should >> also update the appropriate user documentation or manpages. >> + Check "Feature Deprecation Guidelines" section in this document >> + if you intend to remove user-visible feature. >> >> Testing is also important: >> >> @@ -263,6 +265,35 @@ certifies the following: >> maintained indefinitely and may be redistributed consistent with >> this project or the open source license(s) involved. >> >> +Feature Deprecation Guidelines >> +------------------------------ >> + >> +Open vSwitch is intended to be user friendly. This means that under >> +normal circumstances we don't abruptly remove features from OVS that >> +some users might still be using. Otherwise, if we would, then we would >> +possibly break our user setup when they upgrade and would receive bug >> +reports. >> + >> +Typical process to deprecate a feature in Open vSwitch is to: >> + >> + (a) Mention deprecation of a feature in the NEWS file. Also, mention >> + expected release or absolute time when this feature would be removed >> + from OVS altogether. Don't use relative time (e.g. "in 6 months") >> + because that is not clearly interpretable. >> + >> + (b) If Open vSwitch is configured to use deprecated feature it should print >> + a warning message to the log files clearly indicating that feature is >> + deprecated and that use of it should be avoided. >> + >> + (c) If this feature is mentioned in man pages, then add "Deprecated" keyword >> + to it. >> + >> +Also, if there is alternative feature to the one that is about to be marked >> +as deprecated, then mention it in (a), (b) and (c) as well. >> + >> +Remember to followup and acctually remove the feature from OVS codebase >> +once deprecation grace period has expired! >> + >> Comments >> -------- >> >> -- >> 2.1.4 > > Should it make it clear that deprecation before removal should be part of a > release? Otherwise, users will not notice the deprecation before the feature is > removed. Sorry for late response, I was off last week. If I understand correctly, then you wanted this document to state more clearly that "feature deprecation" and "feature removal" must be done in different releases. I think wording "release after" should help to comprehend that. So how about following wording: "Remember to followup and actually remove the feature from OVS codebase in one of the next releases after deprecation grace period has expired."
On Mon, Sep 28, 2015 at 11:17:16AM -0700, Ansis Atteka wrote: > On Tue, Sep 22, 2015 at 4:21 AM, Thadeu Lima de Souza Cascardo > <cascardo@redhat.com> wrote: > > On Sat, Sep 19, 2015 at 01:22:39PM -0700, Ansis Atteka wrote: > >> It seems that we haven't defined clear process on how features should > >> be removed from OVS. This patch attempts to document this process. > >> > >> Singed-off-by: Ansis Atteka <aatteka@nicira.com> > >> --- > >> CONTRIBUTING.md | 31 +++++++++++++++++++++++++++++++ > >> 1 file changed, 31 insertions(+) > >> > >> diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md > >> index 12cb7dc..12d2a77 100644 > >> --- a/CONTRIBUTING.md > >> +++ b/CONTRIBUTING.md > >> @@ -24,6 +24,8 @@ In particular: > >> > >> - A patch that adds or removes user-visible features should > >> also update the appropriate user documentation or manpages. > >> + Check "Feature Deprecation Guidelines" section in this document > >> + if you intend to remove user-visible feature. > >> > >> Testing is also important: > >> > >> @@ -263,6 +265,35 @@ certifies the following: > >> maintained indefinitely and may be redistributed consistent with > >> this project or the open source license(s) involved. > >> > >> +Feature Deprecation Guidelines > >> +------------------------------ > >> + > >> +Open vSwitch is intended to be user friendly. This means that under > >> +normal circumstances we don't abruptly remove features from OVS that > >> +some users might still be using. Otherwise, if we would, then we would > >> +possibly break our user setup when they upgrade and would receive bug > >> +reports. > >> + > >> +Typical process to deprecate a feature in Open vSwitch is to: > >> + > >> + (a) Mention deprecation of a feature in the NEWS file. Also, mention > >> + expected release or absolute time when this feature would be removed > >> + from OVS altogether. Don't use relative time (e.g. "in 6 months") > >> + because that is not clearly interpretable. > >> + > >> + (b) If Open vSwitch is configured to use deprecated feature it should print > >> + a warning message to the log files clearly indicating that feature is > >> + deprecated and that use of it should be avoided. > >> + > >> + (c) If this feature is mentioned in man pages, then add "Deprecated" keyword > >> + to it. > >> + > >> +Also, if there is alternative feature to the one that is about to be marked > >> +as deprecated, then mention it in (a), (b) and (c) as well. > >> + > >> +Remember to followup and acctually remove the feature from OVS codebase > >> +once deprecation grace period has expired! > >> + > >> Comments > >> -------- > >> > >> -- > >> 2.1.4 > > > > Should it make it clear that deprecation before removal should be part of a > > release? Otherwise, users will not notice the deprecation before the feature is > > removed. > > Sorry for late response, I was off last week. If I understand > correctly, then you wanted this document to state more clearly that > "feature deprecation" and "feature removal" must be done in different > releases. I think wording "release after" should help to comprehend > that. So how about following wording: > > "Remember to followup and actually remove the feature from OVS codebase > in one of the next releases after deprecation grace period has expired." Well, that's about the feature removal. I mean the deprecation itself must be part of a release. For example, the feature should only be removed from 3.1, if the deprecation warning has been part of 3.0. Cascardo.
Thanks for review, I pushed this after addressing typos. On Mon, Sep 21, 2015 at 8:47 AM, Flavio Leitner <fbl@sysclose.org> wrote: > On Sat, Sep 19, 2015 at 01:22:39PM -0700, Ansis Atteka wrote: >> It seems that we haven't defined clear process on how features should >> be removed from OVS. This patch attempts to document this process. >> >> Singed-off-by: Ansis Atteka <aatteka@nicira.com> >> --- > LGTM > > Acked-by: Flavio Leitner <fbl@sysclose.org> > >
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md index 12cb7dc..12d2a77 100644 --- a/CONTRIBUTING.md +++ b/CONTRIBUTING.md @@ -24,6 +24,8 @@ In particular: - A patch that adds or removes user-visible features should also update the appropriate user documentation or manpages. + Check "Feature Deprecation Guidelines" section in this document + if you intend to remove user-visible feature. Testing is also important: @@ -263,6 +265,35 @@ certifies the following: maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved. +Feature Deprecation Guidelines +------------------------------ + +Open vSwitch is intended to be user friendly. This means that under +normal circumstances we don't abruptly remove features from OVS that +some users might still be using. Otherwise, if we would, then we would +possibly break our user setup when they upgrade and would receive bug +reports. + +Typical process to deprecate a feature in Open vSwitch is to: + + (a) Mention deprecation of a feature in the NEWS file. Also, mention + expected release or absolute time when this feature would be removed + from OVS altogether. Don't use relative time (e.g. "in 6 months") + because that is not clearly interpretable. + + (b) If Open vSwitch is configured to use deprecated feature it should print + a warning message to the log files clearly indicating that feature is + deprecated and that use of it should be avoided. + + (c) If this feature is mentioned in man pages, then add "Deprecated" keyword + to it. + +Also, if there is alternative feature to the one that is about to be marked +as deprecated, then mention it in (a), (b) and (c) as well. + +Remember to followup and acctually remove the feature from OVS codebase +once deprecation grace period has expired! + Comments --------