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Ticket Resolution Summary Owner Reporter
#87 fixed IZ512: performance of non unique hashtables can be improved joga
Description

[Imported from gridengine issuezilla http://gridengine.sunsource.net/issues/show_bug.cgi?id=512]

        Issue #:      512              Platform:     All           Reporter: joga (joga)
       Component:     gridengine          OS:        All
     Subcomponent:    qmaster          Version:      5.3p3            CC:    None defined
        Status:       STARTED          Priority:     P3
      Resolution:                     Issue type:    ENHANCEMENT
                                   Target milestone: ---
      Assigned to:    joga (joga)
      QA Contact:     ernst
          URL:
       * Summary:     performance of non unique hashtables can be improved
   Status whiteboard:
      Attachments:

     Issue 512 blocks:
   Votes for issue 512:


   Opened: Mon Mar 24 05:49:00 -0700 2003 
------------------------


Non unique hash tables (module cull_hash) show bad
performance, if there is a huge amount of entries
for one hashkey (see also issue 493).

Their performance should be improved.

This can for example be accieved by setting a
unique hash key on the members of the non unique
object list.

Additional memory overhead should be analyzed and
carefully evaluated against performance improvements.

   ------- Additional comments from joga Tue Mar 30 04:23:27 -0700 2004 -------
started

   ------- Additional comments from sgrell Mon Dec 12 03:03:07 -0700 2005 -------
Changed the subcomponent.

Stephan

   ------- Additional comments from ernst Tue Aug 19 02:55:53 -0700 2008 -------
Isn't this already implemented?
#94 invalid IZ553: Admin guide: Moved object references from pe/ckpt into queue ernst
Description

[Imported from gridengine issuezilla http://gridengine.sunsource.net/issues/show_bug.cgi?id=553]

        Issue #:      553              Platform:     All       Reporter: ernst (ernst)
       Component:     gridengine          OS:        All
     Subcomponent:    doc              Version:      6.0          CC:    None defined
        Status:       NEW              Priority:     P3
      Resolution:                     Issue type:    FEATURE
                                   Target milestone: ---
      Assigned to:    andreas (andreas)
      QA Contact:     skonta
          URL:
       * Summary:     Admin guide: Moved object references from pe/ckpt into queue
   Status whiteboard:
      Attachments:

     Issue 553 blocks:
   Votes for issue 553:


   Opened: Thu May 15 04:49:00 -0700 2003 
------------------------


The attribute set of the pe object, checkointing
environment and queue has been
changed. These changes will be available with the
next major release (6.0) of
SGE/EE.

PE object
---------
The attribute "queue_list" has been removed from
pe object.
The "queue_list" attribute made it possible to
define a relation between one pe
enviropnment and multiple queue objects.

CKPT object
-----------
Also here the attribute "queue_list" has been removed.
The "queue_list" attribute made it possible to
define a relation between one
ckpt interface and multiple queue objects.

QUEUE object
------------
Two attributes have been added to the queue
specification: "pe_list" and
"ckpt_list". These new lists may contain a list of
pe/ckpt names or the
keyword "NONE". Both lists make it possible to
define relations between
one queue object and multiple pe environments/ckpt
interfaces.

The definition of the qtype attibute has been
changed. The formerly supported
types parallel and checkpointing are deprecated. A
queue is implicitely of
type parallel/checkpointing if there is a parallel
environment or a
checkpointing interface specified for this queue
instance in
"pe_list"/"ckpt_list".
Currently allowed values for qtype are BATCH
and/or INTERACTIVE or the
keyword NONE. Default value for new queues is
BATCH and INTERACTIVE

Some Examples
-------------

a)

   Old configuration:

      QUEUE1:
         qtype PARALLEL

      PE1:
         queue_list QUEUEU1

   New configuration:

      QUEUE1:
         qtype NONE
         pe_list PE1

      PE1:

b)

   Old configuration:

      QUEUE1:
         qtype BATCH CHECKPOINTING

      CKPT1:
         queue_list QUEUEU1

   New configuration:

      QUEUE1:
         qtype BATCH
         ckpt_list CKPT1

      CKPT1:

   ------- Additional comments from andreas Tue Jul 20 10:10:54 -0700 2004 -------
Changed summary.

   ------- Additional comments from andreas Thu Oct 21 08:37:22 -0700 2004 -------
Assign User/Admin/Install issues to Mark O'Brien.

   ------- Additional comments from surajp Mon Mar 23 01:53:25 -0700 2009 -------
Reassigning issue to Sandra.
#95 invalid IZ554: GE scheduler and ntpdate seems incompatible. yoshiki
Description

[Imported from gridengine issuezilla http://gridengine.sunsource.net/issues/show_bug.cgi?id=554]

        Issue #:      554              Platform:     PC      Reporter: yoshiki (yoshiki)
       Component:     gridengine          OS:        Linux
     Subcomponent:    qmaster          Version:      5.3p2      CC:    None defined
        Status:       NEW              Priority:     P3
      Resolution:                     Issue type:    TASK
                                   Target milestone: ---
      Assigned to:    andreas (andreas)
      QA Contact:     ernst
          URL:
       * Summary:     GE scheduler and ntpdate seems incompatible.
   Status whiteboard:
      Attachments:

     Issue 554 blocks:
   Votes for issue 554:


   Opened: Thu May 15 18:12:00 -0700 2003 
------------------------


My cluster has one ntp server node.
The others has some clone script for time
synchronization as following.
0 3 * * * /usr/sbin/ntpdate -s
192.168.1.1; /sbin/hwclock --systohc

When I run some job at about ntpdate setting time
(ex. 3 a.m.),
the job is sometimes re-run. Some output of
qmaster message is following.
--------------------------------------------------
------------------------
Wed May 14 02:59:51 2003|qmaster|node01|W|system
time has been modified (-8 seconds)
Wed May 14 02:59:51
2003|qmaster|node01|E|enrolled, but leave_commd()
call failed with status: NOT ENROLLED
Wed May 14 03:00:28 2003|qmaster|node01|W|job
3746.1 failed on host node07  rescheduling
because: manual/auto rescheduling
Wed May 14 03:00:28
2003|qmaster|node01|W|rescheduling job 3746.1
Wed May 14 03:00:28 2003|qmaster|node01|W|job
3828.1 failed on host node10  rescheduling
because: manual/auto rescheduling
Wed May 14 03:00:28
2003|qmaster|node01|W|rescheduling job 3828.1
--------------------------------------------------
------------------------
I suppose it happens a long time delay to report
qmaster from execd on time changed node.

   ------- Additional comments from sgrell Tue Dec 6 08:38:58 -0700 2005 -------
Changed subcomponent.

Stephan

   ------- Additional comments from mnikhil Wed Jan 16 07:44:27 -0700 2008 -------
may I know anything latest on this please?

   ------- Additional comments from joga Wed May 28 03:40:25 -0700 2008 -------
The corresponding code is only in 5.3 source base,
so are you seeing this in a 5.3 cluster?
Then you should consider upgrading to the current version (6.1u4).

A workaround might be to run ntpd instead of regular calls to ntpdate.
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