Changeset 29372 for main/trunk/greenstone2/setup.bash

Timestamp:

2014-10-16T17:50:59+13:00 (10 years ago)

Author:

ak19

Message:

From perl 5.18 onward, the iteration order over a map within a single process has been randomised. ​http://www.perlmonks.org/?node_id=1005122 and ​http://perldoc.perl.org/perlsec.html#Algorithmic-Complexity-Attacks However, this breaks searching a collection of simple text files, as the metadata and content get mixed up because of the order that items are iterated over in the map during ArchiveInfPlugin's read() changing within a single run of buildcol. To get it to be consistent within a single run, there's a new environment variable, which we now set. See ​https://metacpan.org/pod/release/RJBS/perl-5.18.0/pod/perldelta.pod#PERL_PERTURB_KEYS-environment-variable-added

File:

• main/trunk/greenstone2/setup.bash (modified) (1 diff)

main/trunk/greenstone2/setup.bash

@@ -334 +334 @@
 # else we may in future need to update PERL5LIB with some other (further) locations
 fi
+
+# Perl >= v5.18.* randomises map iteration order within a process
+export PERL_PERTURB_KEYS=0