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(ITS#4702) out-of-memory on huge DB ?
Full_Name: Paolo Rossi
OS: Solaris 8
Submission from: (NULL) (18.104.22.168)
Hi, during some test on very huge DB, due to see how syncrepl works in this
scenario, I've found a strange behavior:
Solaris 8 on 2xUSIII+ 4GB RAM
1 provider, 1 consumer, 1 consumer with filter.
on 1 million dn LDAP whit 2 sub-dn for each dn, all the systems works fine,
when I've tried to use a 10m dn with 3 sub-dn (very big ldap, openldap-data dir
slapadd with -w on producer. it works.
some ldapsearch, it works.
slapcat the producer to obtain the ldif for consumer preload and... bum
after about 150 minutes of slapcat, memory full (look the screenshot of top )
PID |USERNAME | SIZE |RES |TIME | CPU |COMMAND
21495 | ldap |4072M |3591M |150:07 | 21.36% |slapd
memory full, then coredump and a console messages:
ch_malloc of 16392 bytes failed
ch_malloc.c:57: failed assertion `0'
the out ldif was about 85% of the full LDAP
I've tried again with same results.
Then I've tried to syncrepl the entire DB, turning on the empty consumers (crazy
idea ;) i know ) but the provider memory allocated, again reached 4GB and...
in the slapd.log
ch_calloc of 1 elems of 80 bytes failed
ch_malloc of 16 bytes failed
seems to be a issue like ITS#4010