SVC - some data missing

Greg

I migrated stor2rrd 7.30 installation to new system (Linux to Linux) and I have issues with one of storage: SVC. Configuration is presented but there is no performance data.

I removed all data for this SVC (from data, www, tmp) but it not helped.

In logs/error.log-SVC there is one repeated line:

Max. recursion depth with nested structures exceeded at /usr/lib64/perl5/vendor_perl/Storable.pm line 278, at /opt/stor2rrd/bin/svcperf.pl line 902.

Could you help me with debugging it?

P.S. Another SVC works as expected.

Regards, Grzegorz

Pavel

Hi,

do you get same error by running this:

perl -MStorable=nstore -e '$h->{$i}{a}{b}{c} = 0 while $i++<10000; nstore($h, "testfile")'

what is your perl, older than 5.30?

are you able to upgrade perl to 5.30.0 at least, it seems to be a perl issue
https://askubuntu.com/questions/1045683/max-recursion-depth-with-nested-structures-exceeded-at-usr-local-lib-perl-5-18
https://bugs.debian.org/cgi-bin/bugreport.cgi?archive=no&bug=912695#83

As a workaround,you can change the value of the limit into the file /usr/lib64/perl5/vendor_perl/Storable/Limit.pm¿ like below:
# bisected by stacksize
$Storable::recursion_limit = -1
  unless defined $Storable::recursion_limit;
$Storable::recursion_limit_hash = -1
  unless defined $Storable::recursion_limit_hash;
1;

Greg

Hi Pavel,

Yes, We have RHEL 8.5 with perl 5.26 - default version. I've tried to upgrade it to 5.30 (using module streams), but a lot of dependency was missing. But your workaround with manually changed limit - works! Thank you!

Regards, Greg

Pavel

just a note for AIX users where Limit.pm does not exist with  perl-5.30.3-2 at least.

in stor2rrd application directory (/home/stor2rrd/stor2rrd usually) open:

vi bin/svcperf.pl

and put this behind line: use Storable qw(retrieve nstore);

# Bug: Max. recursion depth with nested structures exceeded

$Storable::recursion_limit=-1;

$Storable::recursion_limit_hash=-1;