Data Services 4.0 Designer. Job Execution but empty log file no matter what

Hi all,
am running DS 4.0. When i execute my batch_job via designer, log window pops up but is blank. i.e. cannot see any trace messages.
doesn't matter if i select "Print all trace messages" in execution properties.
Jobserver is running on a seperate server. The only thing i have locally is just my designer.
if i log into the Data Services management console and select the job server, i can see trace and error logs from the job. So i guess what i need is for this stuff to show up in my designer?
Did i miss a step somewhere?
can't find anything in docs about this.
thanks
Edited by: Andrew Wangsanata on May 10, 2011 11:35 AM
Added additional detail

awesome. Thanks Manoj
I found the log file. in it relevant lines for last job i ran are
(14.0) 05-11-11 16:52:27 (2272:2472) JobServer:  Starting job with command line -PLocaleUTF8 -Utip_coo_ds_admin
                                                -P+04000000001A030100100000328DE1B2EE700DEF1C33B1277BEAF1FCECF6A9E9B1DA41488E99DA88A384001AA3A9A82E94D2D9BCD2E48FE2068E59414B12E
                                                48A70A91BCB  -ek********  -G"70dd304a_4918_4d50_bf06_f372fdbd9bb3" -r1000 -T1073745950  -ncollect_cache_stats
                                                -nCollectCacheSize  -ClusterLevelJOB  -Cmxxx -CaDesigner -Cjxxx -Cp3500 -CtBatch  -LocaleGV
                                                -BOESxxx.xxx.xxx.xxx -BOEAsecLDAP -BOEUi804716
                                                -BOEP+04000000001A0301001000003F488EB2F5A1CAB2F098F72D7ED1B05E6B7C81A482A469790953383DD1CDA2C151790E451EF8DBC5241633C1CE01864D93
                                                72DDA4D16B46E4C6AD -Sxxx.xxx.xxx -NMicrosoft_SQL_Server -Qlocal_repo  coo ds local
                                                repo_azdzgq4dnuxbm4xeriey1_e" -l"C:\Program Files (x86)\SAP BusinessObjects\Data Services/log/js01/tip coo ds local
                                                repo_azdzgq4dnuxbm4xeriey1_e/trace_05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3.txt" -z"C:\Program Files
                                                (x86)\SAP BusinessObjects\Data Services/log/js01/tip coo ds local
                                                repo_azdzgq4dnuxbm4xeriey1_e/error_05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3.txt" -w"C:\Program Files
                                                (x86)\SAP BusinessObjects\Data Services/log/js01/tip coo ds local
                                                repo_azdzgq4dnuxbm4xeriey1_e/monitor_05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3.txt" -Dt05_11_2011_16_52_27_9
                                                (BODI-850052)
(14.0) 05-11-11 16:52:27 (2272:2472) JobServer:  StartJob : Job '05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3' with pid '148' is kicked off
                                                (BODI-850048)
(14.0) 05-11-11 16:52:28 (2272:2072) JobServer:  Sending notification to <inet:10.165.218.xxx:56511> with message type <4> (BODI-850170)
(14.0) 05-11-11 16:52:28 (2272:2472) JobServer:  AddChangeInterest: log change interests for <05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3> from client
                                                <inet:10.165.218.xxx:56511>. (BODI-850003)
(14.0) 05-11-11 17:02:32 (2272:2472) JobServer:  RemoveChangeInterest: log change interests for <05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3> from client
                                                <inet:10.165.218.xxx:56511>. (BODI-850003)
(14.0) 05-11-11 19:57:45 (2272:2468) JobServer:  GetRunningJobs() success. (BODI-850058)
(14.0) 05-11-11 19:57:45 (2272:2468) JobServer:  PutLastJobs Success.  (BODI-850001)
(14.0) 05-11-11 19:57:45 (2272:2072) JobServer:  Sending notification to <inet:10.165.218.xxx:56511> with message type <5> (BODI-850170)
(14.0) 05-11-11 19:57:45 (2272:2472) JobServer:  GetHistoricalLogStatus()  Success. 05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3 (BODI-850001)
(14.0) 05-11-11 19:57:45 (2272:2472) JobServer:  GetHistoricalLogStatus()  Success. 05_11_2011_16_52_27_9__70dd304a_4918_4d50_bf06_f372fdbd9bb3 (BODI-850001)
it does not look like i have any errors with respect to connectivity? ( or any errors at all....)
Please advise on what, if anything you notice from log file and/or next steps i can take.
thanks.

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    just haven't been through the nightmare of having a corrupted system database or a crashed instance because of insuficient log space in the middle of the day.
    And you are right about the size of the backup, I didn't put it correctly. It isn't the size of the backup that gets smaller (although the backup operation will run faster, having tested this myself), but the benefit from backing up a database with a small
    log file is that you won't need the extra space to restore it in a different environment such as a BI or DEV server, where recuperability doesn't matter and the database will be on simple recovery mode.
    Restoring the database will also be faster.
    Just because there are clouds in the sky it doesn't mean it isn't blue. But someone will come and argue that in addition to clouds, birds, airplanes, pollution, sunsets, daltonism and nuclear bombs, all adding different colours to the sky, this
    is an undocumented behavior and should not be relied upon.

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