java.lang.OutOfMemoryError: Java heap space

Dear Sir,

We have a production platform where over low traffic a session dump has been executed. We got the following exception and the customer wants to know its meaning:

[tpaadmin@AVPR-SPS-ME-oame-1 ~]$ db-list -l sessions -o /opt/tpa/logs/
You are about to start the dump of sessions from the database.
The operation may take time. Please ensure adequate disk space in the output
directory. Continue (y/n)?y
Set listed object to: sessions
Set site option to: primary
Set Namespace option to: all
Set 'Output Directory' to /opt/tpa/logs/
Set the current site's Id to: 3

Output directory created: /opt/tpa/logs//SESSIONS-2019-09-30_00_30_44_837/
'4' output files initialized.
Executor service created with '4' threads. Starting to process records.
Fetching records in namespace 'spspd1'
Data file writing is in progress. 101,000 records processed so far...
Exception in thread "tend" Exception in thread "pool-2-thread-1" java.lang.OutOfMemoryError: Java heap space
        at java.net.AbstractPlainSocketImpl.create(AbstractPlainSocketImpl.java:108)
        at java.net.Socket.createImpl(Socket.java:457)
        at java.net.Socket.getImpl(Socket.java:520)
        at java.net.Socket.setTcpNoDelay(Socket.java:980)
        at com.aerospike.client.cluster.Connection.<init>(Connection.java:69)
        at com.aerospike.client.cluster.Node.refresh(Node.java:127)
        at com.aerospike.client.cluster.Cluster.tend(Cluster.java:354)
        at com.aerospike.client.cluster.Cluster.run(Cluster.java:317)
        at java.lang.Thread.run(Thread.java:748)
Exception in thread "Aerospike-3" Exception in thread "pool-2-thread-2" Exception in thread "Aerospike-2" java.lang.OutOfMemoryError: Java heap space
        at org.codehaus.jackson.map.introspect.AnnotatedClass._collectRelevantAnnotations(AnnotatedClass.java:834)
        at org.codehaus.jackson.map.introspect.AnnotatedClass._constructCreatorMethod(AnnotatedClass.java:819)
        at org.codehaus.jackson.map.introspect.AnnotatedClass.resolveCreators(AnnotatedClass.java:375)
        at org.codehaus.jackson.map.introspect.BasicClassIntrospector.classWithCreators(BasicClassIntrospector.java:187)
        at org.codehaus.jackson.map.introspect.BasicClassIntrospector.collectProperties(BasicClassIntrospector.java:157)
        at org.codehaus.jackson.map.introspect.BasicClassIntrospector.forSerialization(BasicClassIntrospector.java:96)
        at org.codehaus.jackson.map.introspect.BasicClassIntrospector.forSerialization(BasicClassIntrospector.java:16)
        at org.codehaus.jackson.map.SerializationConfig.introspect(SerializationConfig.java:973)
        at org.codehaus.jackson.map.ser.BeanSerializerFactory.createSerializer(BeanSerializerFactory.java:251)
        at org.codehaus.jackson.map.ser.StdSerializerProvider._createUntypedSerializer(StdSerializerProvider.java:782)
        at org.codehaus.jackson.map.ser.StdSerializerProvider._createAndCacheUntypedSerializer(StdSerializerProvider.java:735)
        at org.codehaus.jackson.map.ser.StdSerializerProvider.findValueSerializer(StdSerializerProvider.java:344)
        at org.codehaus.jackson.map.ser.impl.PropertySerializerMap.findAndAddSerializer(PropertySerializerMap.java:39)
        at org.codehaus.jackson.map.ser.std.MapSerializer._findAndAddDynamic(MapSerializer.java:403)
        at org.codehaus.jackson.map.ser.std.MapSerializer.serializeFields(MapSerializer.java:257)
        at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:186)
        at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:23)
        at org.codehaus.jackson.map.ser.std.StdContainerSerializers$IndexedListSerializer.serializeContents(StdContainerSerializers.java:122)
        at org.codehaus.jackson.map.ser.std.StdContainerSerializers$IndexedListSerializer.serializeContents(StdContainerSerializers.java:71)
        at org.codehaus.jackson.map.ser.std.AsArraySerializerBase.serialize(AsArraySerializerBase.java:86)
        at org.codehaus.jackson.map.ser.std.MapSerializer.serializeFields(MapSerializer.java:262)
        at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:186)
        at org.codehaus.jackson.map.ser.std.MapSerializer.serialize(MapSerializer.java:23)
        at org.codehaus.jackson.map.ser.StdSerializerProvider._serializeValue(StdSerializerProvider.java:610)
        at org.codehaus.jackson.map.ser.StdSerializerProvider.serializeValue(StdSerializerProvider.java:256)
        at org.codehaus.jackson.map.ObjectMapper._configAndWriteValue(ObjectMapper.java:2575)
        at org.codehaus.jackson.map.ObjectMapper.writeValueAsString(ObjectMapper.java:2097)
        at com.alcatel.tpapps.eocstools.listdb.SessionRecordProcessor.lambda$writeSessionJSON$0(SessionRecordProcessor.java:175)
        at com.alcatel.tpapps.eocstools.listdb.SessionRecordProcessor$$Lambda$8/1556958977.accept(Unknown Source)
        at java.util.ArrayList.forEach(ArrayList.java:1257)
        at com.alcatel.tpapps.eocstools.listdb.SessionRecordProcessor.writeSessionJSON(SessionRecordProcessor.java:169)
        at com.alcatel.tpapps.eocstools.listdb.SessionRecordProcessor.run(SessionRecordProcessor.java:142)
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space

The last command is still processing!
Please wait a few seconds to run the next command!

It took 3621 seconds to complete this task ...
[tpaadmin@AVPR-SPS-ME-oame-1 ~]$

Thanks!

© 2015 Copyright Aerospike, Inc. | All rights reserved. Creators of the Aerospike Database.