Hi AndersBj,
Reviewed and tested the patch.
Ack with nimor comment.
comment:
The code for ImmModel::classDelete in the patch may not hit because,
In classDelete the class name will be erased once it is marked for
deletion. and ERR_NOT_EXIST will be returned(The following code will hit).
if (i == sClassMap.end()) {
TRACE_7("ERR_NOT_EXIST: class '%s' does not exist",
className.c_str());
err = SA_AIS_ERR_NOT_EXIST;
/Neel
On Friday 21 February 2014 09:05 PM, Anders Bjornerstedt wrote:
> Summary: IMM: Use existing PBE mutation record to guard against concurrent
> class create/delete [#757]
> Review request for Trac Ticket(s): 757
> Peer Reviewer(s): Neel
> Pull request to:
> Affected branch(es): 4.2(?); 4.3; 4.4: default(4.5)
> Development branch:
>
> --------------------------------
> Impacted area Impact y/n
> --------------------------------
> Docs n
> Build system n
> RPM/packaging n
> Configuration files n
> Startup scripts n
> SAF services y
> OpenSAF services n
> Core libraries n
> Samples n
> Tests n
> Other n
>
>
> Comments (indicate scope for each "y" above):
> ---------------------------------------------
>
> changeset 8b350adb3b0eaec83a6bbe758e4d5a222cf916cf
> Author: Anders Bjornerstedt <[email protected]>
> Date: Fri, 21 Feb 2014 16:09:37 +0100
>
> IMM: Use existing PBE mutation record to guard against concurrent class
> create/delete [#757]
>
> The existing mutation record for PBE operations includes records for
> class-
> create and class-delete. These are now used to detect any pre-existing
> and
> on-going PBE job for a class-create or class-delete. When this is
> detected,
> any new request to delete or create the same class will get ERR_BUSY.
>
> If PBE is not enabled, then class-create and class-delete are pure
> uninterrupted single jobs in the IMMNDs and have no concurrency issues.
>
>
> Complete diffstat:
> ------------------
> osaf/services/saf/immsv/immnd/ImmModel.cc | 100
> ++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------
> 1 files changed, 48 insertions(+), 52 deletions(-)
>
>
> Testing Commands:
> -----------------
> I tested by hacking osaf/services/saf/immsv/immpbed/immpbe_daemon.cc
> in the PBE admin-op case for class-create or class-delete to sleep for a few
> seconds.
> This to give me time to also invoke a second class-create or class-delete or
> object-create
> using the same class. while it was being created or deleted.
>
>
>
> Testing, Expected Results:
> --------------------------
> Asuming a class-create or class-delete is onögoing (being processed by the
> PBE),
> then a second class-crerate or class-delete or an object-create, using the
> same class
> should get ERR_BUSY. A NOtice level message is also written to the syslog.
> No error string can be provided for class-create or class-delete attempts.
>
> An error string could in principle be provided for object-create, but that is
> not the case in this patch.
>
>
> Conditions of Submission:
> -------------------------
> Ack from Neel.
> If I get the ack while 4.2 is still open, then I will push it also to 4.2.
>
> But this is a minor ticket and the final 4.2 release should not be delayed
> purely waiting on this fix.
>
>
> Arch Built Started Linux distro
> -------------------------------------------
> mips n n
> mips64 n n
> x86 n n
> x86_64 n n
> powerpc n n
> powerpc64 n n
>
>
> Reviewer Checklist:
> -------------------
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