PM95042: cleartool: Warning: Unable to get explicit composite baseline

Fixes are available

APAR status

Closed as program error.

Error description

Summary:
----------
While rebasing a stream which has foundations on multitple
composite baselines
 the user may receive multiple occurrences of

cleartool: Warning: Unable to get explicit composite baseline

which has unclear meaning and makes the other command output
extremely difficult to read.
----------


Steps to reproduce:
This issue is reproducible only in very complex UCM
environments, so full details
on reproducing it from scratch are omitted.

1. The UCM must be configured using composite baselines from
multiple other projects.
2. The other projects must be configured using common shared
components

Rebase a stream onto a composite baseline
(Prj_A_v7r1m2f9_Comp_A) that overrides or augments a component
(Comp_A) foundation in the current configuration.
If this component contains a dependency on a component
(SubComp_1) that is already in the stream's configuration
   through dependency of a composite baseline
(Prj_B_v7r1m2f8_Comp_B) in some OTHER component (Comp_B)
   AND Prj_A_v7r1m2f9_Comp_A and Prj_B_v7r1m2f8_Comp_B depend on
different baselines of SubComp_1,
   then 'rebase' shall detect a 'conflict' and log the
following:
---------------------
cleartool: Error: Conflicts in configuration:
  Component 'SubComp_1@/vobs/pvob'  baselines:
    'v7r1m2f9_Prj_A_SubComp_1@/vobs/pvob' (member of
'Prj_A_v7r1m2f9_Comp_A@/vobs/pvob')
    'v7r1m2f8_Prj_B_SubComp_1@/vobs/pvob' (member of
'Prj_B_v7r1m2f8_Comp_B@/vobs/pvob')
cleartool: Error: Unable to rebase stream 'prj_1.0_int'.
---------------------

Now suppose there is also a Comp_C developed in Prj_C, which
also depends on SubComp_1
  but the foundation in use by stream 'prj_1.0_int' also depends
on baseline 'v7r1m2f8_Prj_B_SubComp_1'
Then our attempt to rebase stream 'prj_1.0_int' onto baseline
'Prj_A_v7r1m2f9_Comp_A' of component 'Comp_A',
 instead of failing with
---------------------
cleartool: Error: Conflicts in configuration:
  Component 'SubComp_1@/vobs/pvob'  baselines:
    'v7r1m2f9_Prj_A_SubComp_1@/vobs/pvob' (member of
'Prj_A_v7r1m2f9_Comp_A@/vobs/pvob')
    'v7r1m2f8_Prj_B_SubComp_1@/vobs/pvob' (member of
'Prj_B_v7r1m2f8_Comp_B@/vobs/pvob','Prj_C_v7r1m2f8_Comp_C@/vobs/
pvob')
cleartool: Error: Unable to rebase stream 'prj_1.0_int'.
---------------------
 or
---------------------
cleartool: Error: Conflicts in configuration:
  Component 'SubComp_1@/vobs/pvob'  baselines:
    'v7r1m2f9_Prj_A_SubComp_1@/vobs/pvob' (member of
'Prj_A_v7r1m2f9_Comp_A@/vobs/pvob')
    'v7r1m2f8_Prj_B_SubComp_1@/vobs/pvob' (member of ***
multiple composite baselines ***)
cleartool: Error: Unable to rebase stream 'prj_1.0_int'.
---------------------
 will actually fail with
---------------------
cleartool: Error: Conflicts in configuration:
  Component 'SubComp_1@/vobs/pvob'  baselines:
    'v7r1m2f9_Prj_A_SubComp_1@/vobs/pvob' (member of
'Prj_A_v7r1m2f9_Comp_A@/vobs/pvob')
'v7r1m2f8_Prj_B_SubComp_1@/vobs/pvob'
cleartool: Warning: Unable to get explicit composite baseline
cleartool: Error: Unable to rebase stream 'prj_1.0_int'.
---------------------

If the rebase is introducing conflicts in multiple components,
and/or the dependency paths of common components are
the output be quickly becomes useless / unreadable.


Workaround:

Write some scripting to extract the useful parts of the message
from the useless parts.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:                                              *
* Users of IBM Rational ClearCase UCM.                         *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* While rebasing an IBM Rational ClearCase stream which has    *
* foundations on multiple composite baselines, the user may    *
* receive multiple occurrences of the message                  *
* "cleartool: Warning: Unable to get explicit composite        *
* baseline"                                                    *
* which has unclear meaning and makes the other command output *
* extremely difficult to read.                                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************

Problem conclusion

A fix is available in ClearCase versions 8.0.0.13 and 8.0.1.6

More detailed error reporting can be enabled by setting a
special environment variable, CCASE_EXPANDED_MSGS to any
non-empty string. If CCASE_EXPANDED_MSGS is empty or
non-existent, the behavior and messages are unchanged.

Temporary fix

Comments

APAR Information

APAR number
PM95042
Reported component name
CLEARCASE UNIX
Reported component ID
5724G2901
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2013-08-14
Closed date
2014-12-16
Last modified date
2014-12-16

APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name
CLEARCASE WIN
Fixed component ID
5724G2900

Applicable component levels

R800 PSY
UP
R801 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSSH27","label":"Rational ClearCase"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
02 November 2021

Tips

PM95042: cleartool: Warning: Unable to get explicit composite baseline

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Fix information

Fixed component name

Fixed component ID

Applicable component levels

R800 PSY

R801 PSY

Document Information

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