Clearcase error: db_VISTA error -901

Posted on December 25, 2008 - Filed Under Clearcase | Leave a Comment

Symptom:
Vob rpc_server and vob server crashed and can not been restart.And with the following error in db_server_log

db_server(13306): Error: Shared memory version changed on lock from 44dee33d to 44d5a8bf.
db_server(13306): Error: DBMS error in "../db1.c" line 1189
db_server(13306): Error: DBMS error in /net/host/vobstg/test.vbs/db.
db_server(13306): Error: db_VISTA error -901 (errno == "Resource temporarily unavailable")

Cause
There is a db_server process that has [...]

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Introduction to clearcase branch

Posted on November 21, 2008 - Filed Under Clearcase | Leave a Comment

Overview
Clearcase branches are used to enable parallel development. A branch is an object that specifies a linear sequence of versions of an element. Every element has one main branch, which represents the principal line of development, and may have multiple subbranches, each of which represents a separate line of development. For example, a project team [...]

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About view text modes of ccrc

Posted on September 24, 2008 - Filed Under Clearcase | Leave a Comment

Each ClearCase view is created with a text mode (line termination) setting that specifies how it handles line terminator sequences. This setting applies only to file elements whose element type is text_file or a subtype of type text_file. You must specify a view text mode when you create the view. You cannot change it after [...]

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Clearcase manual online

Posted on July 21, 2008 - Filed Under Clearcase | Leave a Comment

To access clearcase manual online,please click here .
Below is a introduction to this online clearcase manual.
Welcome to the online help. This information center tells you about our tools and how to use them to achieve your development goals.
To access the Rational ClearCase 7.0.0 information center, visit http://publib.boulder.ibm.com/infocenter/cchelp/v7r0m0/index.jsp

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How do I get rid of a hyperlink described as “? -> ?” in clearcase

Posted on July 14, 2008 - Filed Under Clearcase | Leave a Comment

Use the checkvob command to repair broken hyperlinks:
cleartool checkvob -hlinks [-force]

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Why do I get “Checked-out version is not selected by view.”

Posted on July 14, 2008 - Filed Under Clearcase | Leave a Comment

This can happen if you a) check out a version in the version tree or b) if a mkbranch rule has been added to your config spec which creates a new branch that is not selected in your view.
Under Windows, open the version tree and look for the icon that resembles an “eye”, it indicates [...]

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How to remove a view owned by some else in clearcase

Posted on July 14, 2008 - Filed Under Clearcase | Leave a Comment

e.g: someone who left the company

If you cannot log into the the system (person’s machine died or was replaced) or left the company and cleartool rmview fails, and either the view doesn’t have checkouts or you want to throw them away, you can do the following (works on DOS prompt and unix commandline):
- cleartool lsview [...]

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How to cleanup view private files from my view

Posted on July 14, 2008 - Filed Under Clearcase | Leave a Comment

The quick way is to just remove the view and re-create it if you want to get rid of all your view-private files/directories/links. If, on the otherhand, you want to keep some of those view-privates, you’ll have to find all the view-private files, which is different depending on if you use dynamic vs. snapshot views. [...]

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How to remove checkouts to a view that no longer exists

Posted on July 13, 2008 - Filed Under Clearcase | Leave a Comment

First figure out the UUID of the view by running:
% cleartool describe -long vob:vobtag
versioned object base “vobtag”
created 31-Dec-00.16:23:00 by ClearCase VOB admin account (vobadm.staff)
VOB family feature level: 2
VOB storage host:pathname “someplace”
VOB storage global pathname “someplace”
database schema version: 53
VOB ownership:
owner [...]

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What does “eclipsed” mean in clearcase

Posted on July 12, 2008 - Filed Under Clearcase | Leave a Comment

An eclipsed element is seen only in dynamic views. It’s basically when a view-private file/directory has the same name as an element in that same directory. Views always display view-private items first. It often occurs when one or more developers are working in the same area adding new features (for example: new classes/packages/namespaces for java/.net [...]

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