Bugs item #2683759, was opened at 2009-03-11 20:57
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Category: PF general
Group: Pathfinder "stable"
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Loredana Afanasiev (lafanasi)
Assigned to: Nobody/Anonymous (nobody)
Summary: memory leak when fireing multiple simultaneous clients
Initial Comment:
Hi team,
After running one query in a multi-user scenario (N clients/threads
simultaneously) the memory footprint of mserver (% of the memory that the
server occupies) grew. After repeating the experiment M times the memory grew
each time and eventually crashed. Running the same query sequentially the same
number of times leaves the footprint of mserver constant. Could it be a faulty
memory cleaning? Details below.
Thanks,
l.
Query: q3.xq
let $col := fn:collection("MotiesTweedeKamer")
let $years := fn:distinct-values(
for $date in $col//hiddendatum
return fn:substring(fn:string($date),1,4))
for $y in $years
order by $y ascending
return <result year="{$y}" count="{
count($col//document[fn:substring(fn:string(.//hiddendatum),1,4) = $y])
}"/>
N = number of parallel users
M = number of sequential runs
* CVS HEAD 2009-03-04
Multithreaded
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
N=60,M=1
5793 lafanasi 20 0 11.5g 9.5g 10m S 2 48.4 16:53.90 Mserver
N=60,M=1
5793 lafanasi 20 0 14.7g 12g 10m S 0 61.6 32:56.46 Mserver
N=60,M=1
5793 lafanasi 20 0 16.4g 13g 10m S 0 67.9 48:10.48 Mserver
N=60,M=1
5793 lafanasi 20 0 17.1g 13g 7968 S 1 68.2 64:07.58 Mserver
N=60,M=1
5793 lafanasi 20 0 17.5g 13g 7564 S 2 67.4 78:18.33 Mserver
N=60,M=4
5793 lafanasi 20 0 20.4g 14g 5320 S 2 72.0 143:11.85 Mserver
N=60,M=6
MAPI = mone...@localhost:50000
QUERY = let $col := fn:collection("MotiesTweedeKamer")
ERROR = !ERROR: BBPdecref: 1000061400_prop_val does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_attr_qn does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_attr_prop does not have pointer fixes.
QUERY = let $col := fn:collection("MotiesTweedeKamer")
ERROR = !ERROR: BBPdecref: 1000061400_rid_level does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_rid_prop does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_prop_text does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_prop_val does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_attr_qn does not have pointer fixes.
!ERROR: BBPdecref: 1000061400_attr_prop does not have pointer fixes.
N=60,M=9
Setup connection failed
$stopMserver
$startMserver
Sequential
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
N=1, M=60
13895 lafanasi 20 0 899m 152m 7924 S 0 0.8 9:18.75 Mserver
N=1, M=200
13895 lafanasi 20 0 930m 181m 7924 S 1 0.9 20:46.68 Mserver
N=1, M=200
13895 lafanasi 20 0 930m 181m 7924 S 2 0.9 39:15.99 Mserver
* Pathfinder Stable version
Multithreaded
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
N=60,M=1
20370 ilps_bg 20 0 3783m 430m 9084 S 2 2.1 126:07.23 Mserver
N=60,M=10
20370 ilps_bg 20 0 8377m 889m 9092 S 1 4.4 133:33.95 Mserver
N=60,M=20
20370 ilps_bg 20 0 17.1g 1.7g 9092 S 2 8.4 147:48.97 Mserver
N=60,M=100
20370 ilps_bg 20 0 62.4g 5.7g 9092 S 2 28.8 223:33.26 Mserver
N=60,M=200
20370 ilps_bg 20 0 153g 13g 9092 S 2 69.6 373:01.82 Mserver
N=60,M=200
Server crash
Setup connection failed
MAPI = mone...@localhost:50100
ACTION= read_line
QUERY = MAPI = mone...@localhost:50100
Sequential
N=1,M=60
19694 ilps_bg 20 0 922m 418m 10m S 0 2.1 0:27.42 Mserver
N=1,M=200
19694 ilps_bg 20 0 926m 422m 10m S 2 2.1 1:52.17 Mserver
Machine name:ZOOKST4
OS: Linux, 2.6.24.3-50.fc8
Mem: 19GB
Compiler: gcc 4.1.2
Parser tools: ?
autoconf (GNU Autoconf) 2.61
automake (GNU automake) 1.10
ltmain.sh (GNU libtool) 1.5.24
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