Fixes are available
Rational ClearCase Fix Pack 07 (7.1.2.7) for 7.1.2
Rational ClearCase Fix Pack 03 (8.0.0.3) for 8.0
Rational ClearCase Fix Pack 14 (7.1.2.14) for 7.1.2
Rational ClearCase Fix Pack 11 (8.0.0.11) for 8.0
Rational ClearCase Fix Pack 12 (8.0.0.12) for 8.0
Rational ClearCase Fix Pack 15 (7.1.2.15) for 7.1.2
Rational ClearCase Fix Pack 13 (8.0.0.13) for 8.0
Rational ClearCase Fix Pack 16 (7.1.2.16) for 7.1.2
Rational ClearCase Fix Pack 17 (7.1.2.17) for 7.1.2
Rational ClearCase Fix Pack 14 (8.0.0.14) for 8.0
Rational ClearCase Fix Pack 18 (7.1.2.18) for 7.1.2
Rational ClearCase Fix Pack 15 (8.0.0.15) for 8.0
Rational ClearCase Fix Pack 19 (7.1.2.19) for 7.1.2
Rational ClearCase Fix Pack 16 (8.0.0.16) for 8.0
Rational ClearCase Fix Pack 17 (8.0.0.17) for 8.0
Rational ClearCase Fix Pack 18 (8.0.0.18) for 8.0
Rational ClearCase Fix Pack 19 (8.0.0.19) for 8.0
Rational ClearCase Fix Pack 20 (8.0.0.20) for 8.0
Rational ClearCase Fix Pack 21 (8.0.0.21) for 8.0
APAR status
Closed as program error.
Error description
TCP ACK delays in multisite syncreplica export results in long lock held times.
Local fix
Problem summary
this is to fix a TCP buffer read poll wait issue for multitool syncreplica -export process by setting up TCP NO_DELAY option. It is noticed that while talking to DB server, multitool process somehow repeatedly wait for about 40ms to read from TCP buffer after several reads. To suppress this option setting, set up an environment variable CLEARCASE_SUPPRESS_NODELAY before running multitool command.
Problem conclusion
A fix is available in ClearCase versions 7.1.2.7 and 8.0.0.3
Temporary fix
Comments
APAR Information
APAR number
PM63090
Reported component name
CLEARCASE WIN
Reported component ID
5724G2900
Reported release
712
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-04-23
Closed date
2012-06-27
Last modified date
2012-06-27
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
R712 PSY
UP
R800 PSY
UP
Document Information
Modified date:
27 June 2012