- **status**: accepted --> fixed
- **Version**: --> 4.5
- **Comment**:
changeset: 6802:a9b393bb1c66
tag: tip
parent: 6799:93e72338e78f
user: A V Mahesh <mahesh.va...@oracle.com>
date: Mon Sep 14 12:14:30 2015 +0530
summary: cpsv: prevented multiple write request with same checkpointHandle
at cpnd [#1467]
changeset: 6801:bd1ac2c47a02
branch: opensaf-4.6.x
parent: 6798:de765110343d
user: A V Mahesh <mahesh.va...@oracle.com>
date: Mon Sep 14 12:13:57 2015 +0530
summary: cpsv: prevented multiple write request with same checkpointHandle
at cpnd [#1467]
changeset: 6800:47e4745bd82a
branch: opensaf-4.5.x
parent: 6797:84dee6e50f1e
user: A V Mahesh <mahesh.va...@oracle.com>
date: Mon Sep 14 12:12:59 2015 +0530
summary: cpsv: prevented multiple write request with same checkpointHandle
at cpnd [#1467]
---
** [tickets:#1467] cpav:two apps on same node simultaneously failed to write
checkpoint and app hangs **
**Status:** fixed
**Milestone:** 4.5.2
**Created:** Mon Aug 31, 2015 04:05 AM UTC by A V Mahesh (AVM)
**Last Updated:** Mon Aug 31, 2015 04:07 AM UTC
**Owner:** A V Mahesh (AVM)
**Attachments:**
-
[test_3opens_app_A.c](https://sourceforge.net/p/opensaf/tickets/1467/attachment/test_3opens_app_A.c)
(9.2 kB; application/octet-stream)
Steps to reproduce :
------------------------------------------------------------
Step -1 :
- Add sleep(30) in cpnd_evt_proc_nd2nd_ckpt_active_data_access_req()
function of file
`osaf/services/saf/cpsv/cpnd/cpnd_evt.c` at line no :3037 And build,
install and bringup Opensaf
on all 4 nodes SC-1, SC-2, PL-3, SC-4 ).
static uint32_t cpnd_evt_proc_nd2nd_ckpt_active_data_access_req(CPND_CB *cb,
CPND_EVT *evt, CPSV_SEND_INFO *sinfo)
{
sleep(30);
uint32_t rc = NCSCC_RC_SUCCESS;
Step -2
Build Cpsv `test_3opens_app_A.c & test_3opens_app_B.c` application on
all 4 nodes SC-1, SC-2, PL-3, SC-4 ( attached to SR)
SC-1:# gcc test_3opens_app_A.c -o node_A -lSaCkpt;
SC-1:# gcc test_3opens_app_B.c -o node_B -lSaCkpt;
Step -3 : Bring up Opensaf on all 4 nodes SC-1, SC-2, PL-3, SC-4
Step -4 : Run checkpoint application ./node_A In all 4 nodes SC-1, SC-2, PL-3,
PL-4
and don`t Press <Enter> key.
SC-1:# ./node_A
0 saCkptCheckpointOpen returned checkpointHandle 626e60
1 saCkptCheckpointOpen returned checkpointHandle 626fe0
2 saCkptCheckpointOpen returned checkpointHandle 627270
3 saCkptCheckpointOpen returned checkpointHandle 6273f0
4 saCkptCheckpointOpen returned checkpointHandle 627570
CPSV:CPA:ONsaCkptCheckpointWrite Waiting to Read from Checkpoint ....
saCkptCheckpointWrite Press <Enter> key to continue...
====================================================
Step -5 :Run checkpoint application ./node_B only on 2 nodes SC-1 & SC-2
and don`t Press <Enter> key.
====================================================
SC-1:# ./node_B
0 saCkptCheckpointOpen returned checkpointHandle 626e60
1 saCkptCheckpointOpen returned checkpointHandle 626fe0
2 saCkptCheckpointOpen returned checkpointHandle 627270
3 saCkptCheckpointOpen returned checkpointHandle 6273f0
4 saCkptCheckpointOpen returned checkpointHandle 627570
CPSV:CPA:ONsaCkptCheckpointWrite Waiting to Read from Checkpoint ....
saCkptCheckpointWrite Press <Enter> key to continue...
====================================================
Step -6 : Press <Enter> key for ./node_A ./node_B application quickly to
write simultaneously on SC-1 only,
then for `node_B` checkpoint application you will will see /node_B
application failed to write checkpoint
====================================================
SC-1: # ./node_A
0 saCkptCheckpointOpen returned checkpointHandle 626e60
1 saCkptCheckpointOpen returned checkpointHandle 626fe0
2 saCkptCheckpointOpen returned checkpointHandle 627270
3 saCkptCheckpointOpen returned checkpointHandle 6273f0
4 saCkptCheckpointOpen returned checkpointHandle 627570
CPSV:CPA:ONsaCkptCheckpointWrite Waiting to Read from Checkpoint ....
saCkptCheckpointWrite Press <Enter> key to continue...
1 saCkptCheckpointWrite checkpointHandle 626e60
2 saCkptCheckpointWrite checkpointHandle 626e60
3 saCkptCheckpointWrite checkpointHandle 626e60
4 saCkptCheckpointWrite checkpointHandle 626e60
222 saCkptCheckpointWrite checkpointHandle 626e60
saCkptCheckpointRead Waiting to Read from Checkpoint ....
saCkptCheckpointRead Press <Enter> key to continue...
SC-1:# ./node_B
0 saCkptCheckpointOpen returned checkpointHandle 626e60
1 saCkptCheckpointOpen returned checkpointHandle 626fe0
2 saCkptCheckpointOpen returned checkpointHandle 627270
3 saCkptCheckpointOpen returned checkpointHandle 6273f0
4 saCkptCheckpointOpen returned checkpointHandle 627570
CPSV:CPA:ONsaCkptCheckpointWrite Waiting to Read from Checkpoint ....
====================================================
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