- modify rsyslog conf and add "%syslogseverity-text:::uppercase%" to input the text Severity
- remove duplicate Severity in log message
- modify MsgUtils::trace for better performance and code structure
- make sure $pid_UDP is set to zero when UDP process quit in CHLD handler
- disable the signal handler for CHLD in the end of SSL lister, and make itself to handle reaper via `wait`
* Fix the issue 'install monitor' exit unexpected (#4582).
- add eval block to cover all possible codes which might die in do_installm_service
- add more logs in install monitor to record useful inforamtion
- add sleep 0.01 to avoid CPU too high
- fix the wrong timeout usage (alarm - die)
- recover the default INT/TERM singal handler to avoid UDP listener will quick when kill 'install monitor'
* Avoid SSL CPU 100% when hit max open file number
- clear logs in the key components during provisioning (not only debug mode, but debug mode will have more logs)
- now only cover rhel7 stateful and stateless
- make more syslogs into cluster.log (tag = xcat or xcat.*)
- the changes will not impact other distro
This commit disable the ACK mechanism in xCATd as now it will cause the race condition
if multiple child processes are waiting for the response.
fix-issue: #3698
* Add trace point for perf tool in xcatd (#903)
This patch aims to enable nytprof library to analyze the performance
of xcat code in statement level.
- Add perf trace point in xcatd
- Add sleep time for db prcess to solve the race condition when
- perf instraction is used.
More reference
To enable prof:
perl -dt:NYTProf /opt/xcat/sbin/xcatd -f
Some perf test sample:
https://github.com/chenglch/xcatperf
* refine the performance of makedhcp (#2901), it including:
- refine the code logic in getSNList to get better performance
- refine the getipaddr, cache the dns lookup result
- refine noderangecontainsMn
- refine ishostinsubnet
'xCAT::MsgUtils->trace' will retrive data from xCAT site table,
at this time timeout event happens and alarm signal received,
current process will exit unexpectly.
partial-bug: pmr 87739,077,724
$dbworkerpid = -1 db process has not been started,
access db in direct access mode.
$dbworkerpid == 0 db process itself.
$dbworkerpid >0 db process is started, access db in cache mode.
This patch add check method to wait for the DB process in xcatd.
Enhance the close method in Table.pm to disable the undef operation
for nodelist in DB process as the reference has already been cached
as a weak reference.
close-issue: #1011
Currently INT signal and USR2 signal are sent to stop the monitor
process at the same time, just keep USR2 as the stop signal in this
patch.
Close-issue: #972
Although handshake between parent and child process fails
due to the heavy IO loading, the message received by parent
process is complete as the block operation is used.
