Bug 789140 - RFE: Implement batch processing that stops on first error
Summary: RFE: Implement batch processing that stops on first error
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: pcs
Version: 7.0
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: 7.0
Assignee: Chris Feist
QA Contact: cluster-qe@redhat.com
URL:
Whiteboard:
Depends On:
Blocks: 1205796
TreeView+ depends on / blocked
 
Reported: 2012-02-09 22:22 UTC by Jaroslav Kortus
Modified: 2015-07-13 06:17 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-04-13 05:25:15 UTC
Target Upstream Version:


Attachments (Terms of Use)

Description Jaroslav Kortus 2012-02-09 22:22:52 UTC
Description of problem:
Currently crm supports multiple ways how to process a batch of commands. One being feeding from stdin and another one -f parameter.

Unfortunately none of these stops when the batch contains invalid or unsuccessful command. It just keeps processing the batch until EOF.

Sometimes this is not the desired behaviour and stopping on first error would make more sense. I'd personally prefer this to be automatic for -f. Adding another option for either stopping or not stopping is also fine.

Version-Release number of selected component (if applicable):
pacemaker-1.1.6-3.el6.x86_64

How reproducible:
always

Steps to Reproduce:
$ cat commands.txt 
cib use nonexistent_CIB
configure primitive ClusterIP ocf:heartbeat:IPaddr2 params ip=192.168.100.11 cidr_netmask=32 op monitor interval=30s	
nonexistent_command

crm -f commands.txt
  
Actual results:
$ crm -f commands.txt 
ERROR: 1: nonexistent_CIB: no such shadow CIB
ERROR: 3: syntax: nonexistent_command


Expected results:
just ERROR 1  printed, exit != 0 (that's correct already).
command on 2nd line and on not executed.

Additional info:

Comment 2 Andrew Beekhof 2012-02-10 13:18:01 UTC
Chris, something to keep in mind when you're implementing pcs.

Comment 3 Andrew Beekhof 2012-08-16 03:51:23 UTC
Moving to the pcs component

Comment 7 Tomas Jelinek 2015-03-12 14:23:22 UTC
In pcs the -f flag works differently than in crm.  It does not specify a file containing a batch of commands, it points to a file containing a CIB pcs should operate on.  If an operation fails, pcs returns a non-zero exit status indicating a failure occurred.  This can be used to detect failures in a script calling pcs.

I spoke with Jaroslav and he agrees this is not an issue in pcs.

Comment 8 Chris Feist 2015-04-13 05:25:15 UTC
Closing due to comment #7.  Users can work on an offline cib, if they run into errors than they can decide to not load back into the system.


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