Hi,
I tested the implementation of class ReferenceMap - it works as
expected. In class AnonymousPersistentField the persistent object is
used as map key, the field value (of the anonymous field) as map value
and the ReferenceMap use weak keys and hard values, thus all persistent
objects set in class AnonymousPersistentField should be GC (if the
persistent object was no longer referenced) - in theory this should
work, but it seems this doesn't work for you.
Could you please post the mapping of the involved classes MotdePasse and
Utilisateur (and of mapped sub/super-classes of these classes if any
exist).
Do you modify any source classes of OJB related to anonymous fields or
references?
regards,
Armin
Marwane wrote:
Hi,
we have a production application on system Windows Server that using :
WebSphere 6.0
OJB version 1.0.3
the application generate a lot of dump file in the system witch cause a
system crash .. in the log i find this :
1,095,332,808 [24] 2
org/apache/ojb/broker/metadata/fieldaccess/AnonymousPersistentField
0x11841c40
1,095,332,784 [72] 2 org/apache/ojb/broker/util/ReferenceMap 0x1664db30
1,095,332,664 [262,160] 23,114 array of
org/apache/ojb/broker/util/ReferenceMap$Entry 0x71b48528
38,548,064 [32] 4 org/apache/ojb/broker/util/ReferenceMap$Entry
0x60e5c2f0
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x229d1fd0
38,543,048 [32] 2 org/apache/ojb/broker/util/ReferenceMap$WeakRef
0x229d1ff0
38,543,016 [40] 4
com/convergence/utile/habilitations/MotdePasse 0x229d20b8
38,542,032 [120] 14
com/convergence/utile/habilitations/Utilisateur 0x2056fde0
38,146,872 [64] 6
com/convergence/utile/habilitations/Profil 0x1e806358
390,528 [24] 1
org/apache/ojb/broker/util/collections/ManageableArrayList 0x29d00308
3,032 [24] 1
org/apache/ojb/broker/util/collections/ManageableArrayList 0x254d0d38
880 [128] 9 java/util/GregorianCalendar 0x205702b0
128 [40] 4 com/convergence/utile/organisation/Entite
0x21cca310
88 [32] 1 java/lang/String 0x2056ffa0
80 [24] 1
org/apache/ojb/broker/util/collections/ManageableArrayList 0x2b1e6ee8
80 [24] 1 java/util/ArrayList 0x2056fdc8
64 [32] 1 java/lang/String 0x2056fed8
56 [32] 1 java/lang/String 0x2056ff10
56 [32] 1 java/lang/String 0x2056ff48
48 [32] 1 java/lang/String 0x2056fe98
16 [16] 0 java/lang/Boolean 0x101eccb0
16 [16] 0 java/lang/Boolean 0x101eccc0
880 [128] 9 java/util/GregorianCalendar 0x229d2430
64 [32] 1 java/lang/String 0x229d2120
16 [16] 0 java/lang/Boolean 0x101eccc0
48 [32] 1 java/lang/ref/ReferenceQueue 0x1664db10
24 [24] 0 java/lang/Long 0x229d20e8
1,095,332,784 [72] 2 org/apache/ojb/broker/util/ReferenceMap
0x1664db30
4,904 [32] 2 org/apache/ojb/broker/util/ReferenceMap$WeakRef
0x60e5c310
24 [24] 0 java/lang/Long 0x60e5c360
1,095,332,784 [72] 2 org/apache/ojb/broker/util/ReferenceMap
0x1664db30
38,547,920 [32] 4 org/apache/ojb/broker/util/ReferenceMap$Entry
0x659aea38
38,543,280 [32] 4 org/apache/ojb/broker/util/ReferenceMap$Entry
0x19f95b00
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x65d52218
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x675fd680
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x4a016de8
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x1b3b09c0
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x4384a5e8
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x270b7740
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x1c9d4ed0
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x505d07a0
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x3b8f8f10
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x6916b088
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x3d6fdbd0
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x14a30960
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x5d3cd108
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x13937968
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x1aa7b5f8
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x118db108
38,543,104 [32] 3 org/apache/ojb/broker/util/ReferenceMap$Entry
0x58115890
There are 23,094 more children
so, some object like 'org/apache/ojb/broker/util/ReferenceMap$Entry',
'org/apache/ojb/broker/util/ReferenceMap' ,
org/apache/ojb/broker/metadata/fieldaccess/AnonymousPersistentField
objects are consuming
more than 1 GB (1,095,332,664 bytes) on heap.
I need an explanation of this , please. and solution or test to do .
thx in advance.
------------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE descriptor-repository PUBLIC "-//Apache Software Foundation//DTD OJB
Repository//EN"
"repository.dtd">
<descriptor-repository version="1.0" isolation-level="read-uncommitted"
proxy-prefetching-limit="50">
<jdbc-connection-descriptor jcd-alias="default" default-connection="true" platform="Db2" jdbc-level="2.0"
driver="com.p6spy.engine.spy.P6SpyDriver" protocol="jdbc" subprotocol="db2" dbalias="//localhost/DEV" username="db2admin"
password="db2admin">
<sequence-manager
className="org.apache.ojb.broker.util.sequence.SequenceManagerHighLowImpl">
<attribute attribute-name="grabSize"
attribute-value="5"/>
<attribute attribute-name="globalSequenceId"
attribute-value="true"/>
<attribute attribute-name="globalSequenceStart"
attribute-value="10000"/>
</sequence-manager>
</jdbc-connection-descriptor>
<!-- OJB INTERNAL MAPPINGS START HERE, DO NOT EDIT -->
<!-- ************************************************************* -->
<!-- The OJB HIGH/LOW SequenceManagerTable -->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.broker.util.sequence.HighLowSequence"
table="OJB_HL_SEQ">
<object-cache
class="org.apache.ojb.broker.cache.ObjectCacheEmptyImpl"/>
<field-descriptor name="tableName" column="TABLENAME" jdbc-type="VARCHAR"
primarykey="true"/>
<field-descriptor name="fieldName" column="FIELDNAME" jdbc-type="VARCHAR"
primarykey="true"/>
<field-descriptor name="maxKey" column="MAX_KEY"
jdbc-type="BIGINT"/>
<field-descriptor name="grabSize" column="GRAB_SIZE"
jdbc-type="INTEGER"/>
<field-descriptor name="version" column="VERSION" jdbc-type="INTEGER"
locking="true"/>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB NAMED ROOTS TABLE, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.NamedRootsMap$NamedEntry"
table="OJB_NRM">
<field-descriptor name="name" column="NAME" jdbc-type="VARCHAR"
primarykey="true"/>
<field-descriptor name="oid" column="OID_"
jdbc-type="LONGVARBINARY"/>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DLIST IMPLEMENTATION, DO NOT EDIT-->
<!-- alternative implementation of DList -->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DListImpl"
table="OJB_DLIST">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<collection-descriptor name="elements"
element-class-ref="org.apache.ojb.odmg.collections.DListEntry" auto-retrieve="true" auto-update="none"
auto-delete="none">
<inverse-foreignkey field-ref="dlistId"/>
</collection-descriptor>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DLIST ENTRY IMPLEMENTATION, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DListEntry"
table="OJB_DLIST_ENTRIES">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<field-descriptor name="dlistId" column="DLIST_ID"
jdbc-type="INTEGER"/>
<field-descriptor name="position" column="POSITION_"
jdbc-type="INTEGER"/>
<field-descriptor name="oid" column="OID_" jdbc-type="LONGVARBINARY"
conversion="org.apache.ojb.broker.accesslayer.conversions.Object2ByteArrFieldConversion"/>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DBAG IMPLEMENTATION, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DBagImpl"
table="OJB_DLIST">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<collection-descriptor name="elements"
element-class-ref="org.apache.ojb.odmg.collections.DListEntry" auto-retrieve="true" auto-update="none"
auto-delete="none">
<inverse-foreignkey field-ref="dlistId"/>
</collection-descriptor>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DSET IMPLEMENTATION, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DSetImpl"
table="OJB_DSET">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<collection-descriptor name="elements"
element-class-ref="org.apache.ojb.odmg.collections.DSetEntry" auto-retrieve="true" auto-update="none"
auto-delete="none">
<inverse-foreignkey field-ref="dlistId"/>
</collection-descriptor>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DSET ENTRY IMPLEMENTATION, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DSetEntry"
table="OJB_DSET_ENTRIES">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<field-descriptor name="dlistId" column="DLIST_ID"
jdbc-type="INTEGER"/>
<field-descriptor name="position" column="POSITION_"
jdbc-type="INTEGER"/>
<field-descriptor name="oid" column="OID_" jdbc-type="LONGVARBINARY"
conversion="org.apache.ojb.broker.accesslayer.conversions.Object2ByteArrFieldConversion"/>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DMAP IMPLEMENTATION, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DMapImpl"
table="OJB_DMAP">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<collection-descriptor name="entries" element-class-ref="org.apache.ojb.odmg.collections.DMapEntry"
collection-class="org.apache.ojb.broker.util.collections.ManageableHashSet" auto-retrieve="true" auto-update="none"
auto-delete="none">
<inverse-foreignkey field-ref="dmapId"/>
</collection-descriptor>
</class-descriptor>
<!-- ************************************************************* -->
<!-- THIS IS THE OJB DMAP ENTRY IMPLEMENTATION, DO NOT EDIT-->
<!-- ************************************************************* -->
<class-descriptor class="org.apache.ojb.odmg.collections.DMapEntry"
table="OJB_DMAP_ENTRIES">
<field-descriptor name="id" column="ID" jdbc-type="INTEGER"
primarykey="true" autoincrement="true"/>
<field-descriptor name="dmapId" column="DMAP_ID"
jdbc-type="INTEGER"/>
<field-descriptor name="keyOid" column="KEY_OID" jdbc-type="LONGVARBINARY"
conversion="org.apache.ojb.broker.accesslayer.conversions.Object2ByteArrFieldConversion"/>
<field-descriptor name="valueOid" column="VALUE_OID"
jdbc-type="LONGVARBINARY"
conversion="org.apache.ojb.broker.accesslayer.conversions.Object2ByteArrFieldConversion"/>
</class-descriptor>
<!-- END OF OJB INTERNAL MAPPINGS-->
</descriptor-repository>
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