[Orca-users] Segemntation Fault - Core Dump

[chrism at demon.net]

From: chrism at demon.net

Hi,
I've recently taken over from Duncan at Demon. He posted the message below 
in January. We still have the same problem, so if anyone can help I'd really 
appreciate it.
I've managed to narrow it down to a particular line, but my knowledge of
orca and Perl is not sufficient to solve it.
The line in question is 

my %values = &{$self->{_choose_data_sub}}(@line);

in the fn load_new_data();

Thanks
Chris

Hi,

               I have been expanding my use of orca to include database monitoring.
               Essentially, I have written an oracle equivalent of orcallator, which produces
               files with a header line and data lines in the same format.  It is read by two
               separate orca processes - one to produce database information, the other to
               produce filesystem info.  This is like separating system statistics from disk
               statistics, which I have also done.

               Now, I have three databases:

               rp01 - produces 62 fields per line, with a maximum line length of 717
               characters
               supp01 - produces 33 fields per line, with a maximum line length of 270
               characters
               uk01 - produces 66 fields per line, with a maximum line length of 780
               characters

               supp01 and uk01 work fine.  rp01 works fine on the database statistics, but it
               causes orca to coredump on the tablespaces information.

               I did some investigation and found the following further information.  If I
               reduce the information on database rp01 to 55 fields, it loads OK and when new
               information is to be added I get the following error.

               /opt/orca/bin/orca: internal error: expecting RRD name
               `orcora_rp01_TS.PIN_INDEX_15' but no data loaded from
               `/var/orca/orcora/rp01/orcora-2000-01-01.00' at time Sat Jan  1 00:00:00 2000
               (946684800).

               More fields than that causes a core dump.

               Less fields than that works fine.

               here are the top two lines of the file
               /var/orca/orcora/rp01/orcora-2000-01-01.00 (with a blank line in between for
               display purposes)

               timestamp locltime started BPrsrlTt bchr dchr memsrt shrdpfree shrdprel wtwl
               imml l
               cghr lcphr rdospc rdoalloc rbckcntsn recursv shrtblscn prsex chnd freelist
               tsmax ts
               avg dbsize datasize TS.PIN_DATA_01 TS.PIN_DATA_02 TS.PIN_DATA_03 TS.PIN_DATA_04
               TS.
               PIN_DATA_05 TS.PIN_DATA_06 TS.PIN_DATA_07 TS.PIN_DATA_08 TS.PIN_DATA_09
               TS.PIN_DATA
               _10 TS.PIN_DATA_11 TS.PIN_DATA_12 TS.PIN_DATA_13 TS.PIN_DATA_14 TS.PIN_DATA_15
               TS.P
               IN_DATA_16 TS.PIN_INDEX01 TS.PIN_INDEX02 TS.PIN_INDEX03 TS.PIN_INDEX04
               TS.PIN_INDEX
               05 TS.PIN_INDEX06 TS.PIN_INDEX07 TS.PIN_INDEX08 TS.PIN_INDEX09 TS.PIN_INDEX_10
               TS.P
               IN_INDEX_11 TS.PIN_INDEX_12 TS.PIN_INDEX_13 TS.PIN_INDEX_14 TS.PIN_INDEX_15
               TS.PIN_
               INDEX_16 TS.RBCK TS.SYSTEM TS.TEMP TS.TOOLS TS.USERS

               946684800 00:00:00 31-12-1999_11:39:58 bbwbwwRw 99.98 98.34 100.00 88.25 0.33
               99.99
                100.00 86.47 90.08 0.00 0.00 0.00 82.17 39.84 0.00 0.00 0.00 97.08 13.26
               17408.39
               1729.21 95.18 21.70 83.48 79.59 4.92 3.92 4.53 6.46 4.79 6.87 8.93 4.34 14.87
               14.87
                97.08 13.39 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
               0.00
               0.00 0.00 6.00 13.08 0.00 6.41 0.00

               My tspaces.cfg file looks pretty standard at the top.  The plot sections are
               like this, with a separate section for each TS indicated above.

               plot {
               title                   %g Tablespace Usage - PIN_DATA_03
               source                  orcora
               data                    TS.(PIN_DATA_03$)
               legend                  PIN_DATA_03
               line_type               area
               y_legend                % Used
               data_min                0
               data_max                100
               plot_min                0
               plot_max                100
               rigid_min_max           1
               }


               Any ideas would be appreciated.

               Cheers,
               Duncan.



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