Dear Mahesh,

 

>> So we can always re-use the existing UN-linked resources by just simply
removing UN-link flag, 
>> what is your opinion?

 

Based on my understanding, new checkpoint even has the same name but might
have different attribute (collocated/non-collocated) and be opened from
different node make the way we manage replicas become complicated.

I fear that will cost more work that Nhat's solution.

 

Thank you and best regards,

Hoang

 

From: A V Mahesh [mailto:mahesh.va...@oracle.com] 
Sent: Thursday, January 19, 2017 2:29 PM
To: Hoang Vo <hoang.m...@dektech.com.au>; zoran.milinko...@ericsson.com
Cc: opensaf-devel@lists.sourceforge.net
Subject: Re: [PATCH 0 of 1] Review Request for cpsv: Update ckpt_reploc_tree
when unlinking a checkpoint [#1655

 

HiHoang,

>>The replica IMM objects are not created after opening a checkpoint in
following scenario:

1.     Open a checkpoint with flag SA_CKPT_CHECKPOINT_CREATE

2.     Unlink the checkpoint ( the checkpoint is still being used)

3.     Open a checkpoint with flag SA_CKPT_CHECKPOINT_CREATE with same name
as the on in 1.

>>After 3. although the checkpoint is opened successfully, the replica IMM
objects are not created.

As I Know CKPT specification  doesn't say , if checkpoint is reopened with
same name
 which is currently in UN-linked state and not yet expired/cleaned  an new
instance should be created .

So we can always re-use the existing UN-linked resources by just simply
removing UN-link flag, 
what is your opinion?

-AVM

On 1/19/2017 12:37 PM, Hoang Vo wrote:

Summary: cpsv: Update ckpt_reploc_tree when unlinking a checkpoint [#1655]
Review request for Trac Ticket(s): 1655
Peer Reviewer(s): mahesh.va...@oracle.com <mailto:mahesh.va...@oracle.com> ;
zoran.milinko...@ericsson.com <mailto:zoran.milinko...@ericsson.com> 
Pull request to: mahesh.va...@oracle.com <mailto:mahesh.va...@oracle.com> 
Affected branch(es): default
Development branch: default
 
--------------------------------
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):
---------------------------------------------
Rebase patch to latest folder structure, do not change any source code
inside
Patched after 1765
 
changeset 6ffeaa4fbf2e352bd42a4bba160c4c593efcf749
Author:  Hoang Vo  <mailto:hoang.m...@dektech.com.au>
<hoang.m...@dektech.com.au>
Date:    Thu, 19 Jan 2017 13:59:09 +0700
 
  Problem:
  -------- The replica IMM objects are not created after opening a
checkpoint
  in following scenario:
 
  1. Open a checkpoint with flag SA_CKPT_CHECKPOINT_CREATE 2. Unlink the
  checkpoint ( the checkpoint is still being used) 3. Open a checkpoint with
  flag SA_CKPT_CHECKPOINT_CREATE with same name as the one in 1.
 
  After step 3. although the checkpoint is opened successfully, the replica
  IMM objects are not created.
 
  The problem happens because the CPD does not delete relating nodes from
  ckpt_reploc_tree when it unlinks the checkpoint in step 2.
 
  Solution:
  --------- The solution is to remove replica location node of that
checkpoint
  from the ckpt_reploc_tree when unlinking the checkpoint.
 
 
Complete diffstat:
------------------
 src/ckpt/ckptd/cpd_db.c   |   4 ++++
 src/ckpt/ckptd/cpd_proc.c |  30 ++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 0 deletions(-)
 
 
Testing Commands:
-----------------
Follow testing step specified in the ticket 1655
 
Testing, Expected Results:
--------------------------
Refer the ticket 1655 description for expected result
 
Conditions of Submission:
-------------------------
ACK from maintainer
 
Arch      Built     Started    Linux distro
-------------------------------------------
mips        n          n
mips64      n          n
x86         n          n
x86_64      y          y
powerpc     n          n
powerpc64   n          n
 
 
Reviewer Checklist:
-------------------
[Submitters: make sure that your review doesn't trigger any checkmarks!]
 
 
Your checkin has not passed review because (see checked entries):
 
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    that need proper data filled in.
 
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___ You have too many commits attached to an e-mail; resend as threaded
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___ You have failed to adequately and individually address all of the
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___ You have a misconfigured ~/.hgrc file (i.e. username, email etc)
 
___ Your computer have a badly configured date and time; confusing the
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    do not contain the patch that updates the Doxygen manual.
 

 

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