Elastic search again

[nirgal]

After upgrade to elasticsearch 6, I now get these messages:

[main] #16797 uses deleted /tmp/elasticsearch-911967724996473250/jna--1985354563/jna4169541765742811285.tmp

I noticed the $nrconf{blacklist_mappings} contains:

    # Java Native Access
    qr#/tmp/jna--#,

    # elasticsearch
    qr#^/tmp/elasticsearch\.#,

We should either add qr#^/tmp/elasticsearch-# or maybe change to something more global like qr#/tmp/(.*/)?jna--#. (I haven't tried and suck at perl regexps).

[liske]

Maybe we just should switch to something like qw#^/tmp/# to ignore any files mapped from /tmp.