chenlong huo created LUCENE-6109:
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             Summary: is MMapDirectory memory leak ?
                 Key: LUCENE-6109
                 URL: https://issues.apache.org/jira/browse/LUCENE-6109
             Project: Lucene - Core
          Issue Type: Bug
    Affects Versions: 4.0, 4.0-BETA
         Environment: Lucene version: lucene-4.0-SNAPSHOT

system info:
Linux version 2.6.32-431.5.1.el6.x86_64 (mockbu...@c6b10.bsys.dev.centos.org) 
(gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Wed Feb 12 
00:41:43 UTC 2014

JDK version:
java version "1.7.0_65"
Java(TM) SE Runtime Environment (build 1.7.0_65-b17)
Java HotSpot(TM) 64-Bit Server VM (build 24.65-b04, mixed mode)


            Reporter: chenlong huo


i wonder that my solr(solr-4.0 with lucene 4.0 snapshot version) application 
run with master-slave model, the problems is :

when i execute the linux command : 
cat /proc/34415/maps  |grep index | grep "deleted"
the 34415 is my lucene process, i see the info:

7fe93400c000-7fe934015000 r--s 00000000 08:01 40371420                   
xxxxx/data/index.20141109123135384/_e7sh.fdx (deleted)
7fe934027000-7fe934035000 r--s 00000000 08:01 40371649                   
xxxxxx/data/index.20141109123135384/_e6z1.fdx (deleted)
7ff0c8012000-7ff0c8049000 r--s 00000000 08:01 40370443                   
....../solr/data/index.20141109123135384/_e7mc.fdx (deleted)
.......
.......
there are too many index files are marked deleted, is that a memory leak ?
 please help me, thanks !



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