The 'CONV_IB(PartNo)' was previously recommended, to ensure the 'Part Number' returned is an integer value, and to overcome potential problems otherwise if the CALLing program and the Distributed Algorithm specify different 'PRECISION's
The 'MALLOCTYPE' environment variable is no longer relevant on Aix systems running jBASE 5.018 and above ( as in this case ) Pat. On 29 Dec, 19:34, "Jim Idle" <[email protected]> wrote: > Well, you are not doing yourself any favors here to be honest. First, why are > you calling CONV_IB on the part number? It is only going to get converted to > string anyway and as you just did ++ on it, it will already be an integer > value anyway. Don't do that, it is just extra work that should not be > necessary. > > Secondly, is there no way to reduce the number of accounts in this file? Are > they all live and cannot be archived in some way? This could be possible of > course. > > However, you will get more mileage from splitting up your query into multiple > selects I think. Also, is your application really going to perform 50 > simultaneous selects on this file? Are you sure that you need to process this > list in sorted order? It is much better to process in the natural select > order unless the algorithm relies on sorted order. > > Next, though I feel there is a lot of work you can do on your code, you need > to change the memory allocation algorithms for AIX. Basically, you don't have > enough RAM to do all the indexed sorts (though as an aside I am not sure why > using the indexes should require so much memory over not using them - you may > need to ask TEMENOS about that), all at once, so you are causing paging, > running out of paging space and AIX has a strategy to kill processes so that > it does not crash. You can search past posts: > > http://jbase.markmail.org/search/?q=AIX%20malloc#query:AIX%20malloc%2... > > For explanations, but basically in your login script add: > > export MALLOCTYPE=buckets > > You should also read this: > > http://publib.boulder.ibm.com/infocenter/tivihelp/v2r1/index.jsp?topi... > > Jim > > From: [email protected] [mailto:[email protected]] On Behalf Of > [Xze] > Sent: Tuesday, December 29, 2009 7:15 AM > To: [email protected] > Subject: Performance issue on files with INDEX > > Dear all, > > We have noticed a huge performace impact on the system when we are running > SELECT on INDEX fields for FBNK.ACCOUNT file. > > After every SELECT the kernel was allocating additional space in RAM. > When both RAM and paging space were 99% used, the kernel killed almost all > jbase sessions. > > LIST-INDEX FBNK.ACCOUNT > > INDEX definitions for file FBNK.ACCOUNT at 16:54:38 29 DEC 2009 > PAGE 1 > INDEX NAME LOCALE NAME SORT KEYS. LOOKUP.... INDEX > DEFINITION................... > ACCOUNT.OF en_US AR BY-AR 11 > FICER > CATEGORY en_US AR BY-AR 2 > CURRENCY en_US AL BY-AL 8 > CUSTOMER en_US AR BY-AR 1 > SYN.CODE en_US AR BY-AR > ITYPE(\LOCAL.REF<1,7>\) > 5 Records Listed > > VERIFY-DISTRIB FBNK.ACCOUNT > Partitioning Algorithm is USER Subroutine 'AC.11' > User subroutine OK. > Part file 'FBNK.ACCOUNT.01', part number 1 - OK > Part file 'FBNK.ACCOUNT.02', part number 2 - OK > Part file 'FBNK.ACCOUNT.03', part number 3 - OK > Part file 'FBNK.ACCOUNT.04', part number 4 - OK > Part file 'FBNK.ACCOUNT.05', part number 5 - OK > Part file 'FBNK.ACCOUNT.06', part number 6 - OK > Part file 'FBNK.ACCOUNT.07', part number 7 - OK > Part file 'FBNK.ACCOUNT.08', part number 8 - OK > Part file 'FBNK.ACCOUNT.09', part number 9 - OK > Part file 'FBNK.ACCOUNT.10', part number 10 - OK > > SUBROUTINE AC.11(DUMMY,INID,RESULT) > DEFC JLibBCONV_IB(VAR) > IF NUM(INID[1]) THEN > PARTNO = INID[1] > PARTNO++ > END ELSE > PARTNO = 11 > END > RESULT = JLibBCONV_IB(PARTNO) > RETURN > END > > In order to to replicate the issue we have opened 10 jbase sessions and each > performed 50 SELECTs on FBNK.ACCOUNT INDEX fileds. > > At the end, the mw42 -m output is as follows: > > Port User Pid Files Perf Del Read Write Open MemF MemU > Cpu Prog > 1 uatusr 279002 6 (5) 1 1 11 2 11 0 9.39M > 0.00 1 E /opt/jbase5/bin/jsh -s jsh - (jsh. > 2 uatusr 389366 7 (6) 1 1 2567 1 10 0 2.06M > 0.93 2 I mw42 -m (mw42.b,232) > 4 uatusr 225790 7 (6) 197 1 3300 99 1433 0 433M > 18.83 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 5 uatusr 229884 7 (6) 197 1 3291 99 1433 0 466M > 19.98 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 12 uatusr 340238 7 (6) 193 1 3214 97 1404 0 519M > 22.05 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 14 uatusr 274452 7 (6) 201 1 3391 101 1462 0 315M > 13.91 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 19 uatusr 413718 7 (6) 197 1 3321 99 1433 0 422M > 16.51 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 20 uatusr 110934 7 (6) 193 1 3218 97 1404 0 506M > 22.17 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 21 uatusr 352482 7 (6) 197 1 3302 99 1433 0 365M > 15.73 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 22 uatusr 364998 33 (19) 192 1 3232 97 1402 0 411M > 0.00 3 SELECT FBNK.ACCOUNT WITH CURRENCY EQ > 27 uatusr 938076 7 (6) 197 1 3279 99 1433 0 553M > 24.51 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 30 uatusr 139574 6 (5) 3 1 886 7 22 0 2.06M > 0.32 1 E /opt/jbase5/bin/jsh -s jsh - (jsh. > 35 uatusr 635036 7 (6) 193 1 3252 97 1404 0 314M > 14.75 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > * 36 uatusr 287038 6 (5) 0 1 902 0 6 0 9.19M > 0.29 1 mw42 -m (mw42.b,764) > 38 uatusr 373142 58 (50) 22 4 626 16 154 0 12.7M > 0.18 1 I EX (S.COMMUNICATION,254) > > The same test on identical area, but WITHOUT INDEX: > > 14 uatpf 139592 6 (5) 1 1 14 3 13 0 9.39M > 0.00 1 E /opt/jbase5/bin/jsh -s jsh - (jsh. > 19 uatpf 315638 7 (6) 181 1 76.4M 91 1317 0 37.8M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 20 uatpf 209012 7 (6) 189 1 79.8M 95 1375 0 29.7M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 21 uatpf 176290 7 (6) 181 1 76.4M 91 1317 0 33.7M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 22 uatpf 262642 7 (6) 189 1 79.8M 95 1375 0 36.2M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 27 uatpf 405766 7 (6) 181 1 76.4M 91 1317 0 31.7M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 30 uatpf 139372 7 (6) 177 1 74.7M 89 1288 0 31.7M > 13m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 35 uatpf 225538 7 (6) 185 1 78.1M 93 1346 0 38.2M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 36 uatpf 188786 7 (6) 181 1 76.4M 91 1317 0 37.6M > 14m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 39 uatpf 450742 7 (6) 181 1 76.4M 91 1317 0 37.6M > 13m 1 I /opt/jbase5/bin/jsh -s jsh - (Comm > 40 uatpf 94562 33 (19) 180 1 75.3M 91 1315 0 37.6M > 13m 3 SELECT FBNK.ACCOUNT WITH SYN.CODE EQ > * 41 uatpf 151944 6 (5) 0 1 51209 0 6 0 9.39M > 13.43 1 mw42 -m (mw42.b,764) > > ( The full mw42 -m output is attached ) > > In ther first case every next SELECT was taking additional memory and was > not releasing it untill the session is closed. > > We are using: > OS - AIX 5.3.9.0 > jB - Major 5.0 , Minor 20 , Patch 0364 (Change 85159) > > jdiag - jBASE diagnostic '$Revision: 1.15 $' > System Information > ================== > System : AIX jbsec 3.5 00CED1BC4C00 > OS Release : 5.3.9.0 > UNIX User : uatusr (uid 213, euid 213) > Tty name : /dev/pts/1 > Time : Tue Dec 29 16:38:20 2009 > Environment > =========== > JBCPORTNO : Not Set > JBCRELEASEDIR : '/opt/jbase5' > JBCGLOBALDIR : '/opt/jbase5' > WARNING: JBCDATADIR is not set, Default '/opt/jbase5/jbase_data' > WARNING: JBCDATADIR is subdirectory of JBCGLOBALDIR > HOME : '/eoy/eoy/bnk.run' > JEDIFILEPATH : '/eoy/eoy/bnk.run' > JEDIFILENAME_MD : 'VOC' > JEDIFILENAME_SYSTEM : '/opt/jbase5/src/SYSTEM' > SYSTEM File is (DICT) : '/opt/jbase5/src/SYSTEM]D' > RELEASE Information : Major 5.0 , Minor 20 , Patch 0364 (Change 85159) > Spooler dir (JBCSPOOLERDIR) : '/var/spool/jbase' > JBCEMULATE : 'prime' > WARNING: Cannot access Executable path '/eoy/eoy/bnk.run/globuspatchbin', > error 2 > Object path (JBCOBJECTLIST) : > '/eoy/eoy/bnk.run/globuspatchlib:/eoy/eoy/bnk.run/lib:/eoy/eoy/bnk.run/globuslib:/eoy/eoy/bnk.run/fixlib' > WARNING: Cannot access Object path '/eoy/eoy/bnk.run/globuspatchlib', error 2 > WARNING: Cannot access Object path '/eoy/eoy/bnk.run/fixlib', error 2 > jBASE Compiler Run-time : '/opt/jbase5/config/system.properties' > Program dir (JBCDEV_BIN) : '/eoy/eoy/bnk.run/bin' > Subroutine dir (JBCDEV_LIB) : '/eoy/eoy/bnk.run/lib' > Max open files : 65534 > > Can anybody please explain what is triggering this and how to fix the issue? > > -- > Please read the posting guidelines > at:http://groups.google.com/group/jBASE/web/Posting%20Guidelines > > IMPORTANT: Type T24: at the start of the subject line for questions specific > to Globus/T24 > > To post, send email to [email protected] > To unsubscribe, send email to [email protected] > For more options, visit this group > athttp://groups.google.com/group/jBASE?hl=en -- Please read the posting guidelines at: http://groups.google.com/group/jBASE/web/Posting%20Guidelines IMPORTANT: Type T24: at the start of the subject line for questions specific to Globus/T24 To post, send email to [email protected] To unsubscribe, send email to [email protected] For more options, visit this group at http://groups.google.com/group/jBASE?hl=en
