Hi,
I am running with serios problem in openfire, please help me to tune it to work fine.
I am running Openfire 3.8.2 with ldap backend. I have around 8000 users in ldap database and in that avg 2000 users will be concorrent online users in openfire.
Initially I didnt use connection manager to run the server. once in a week or byweek server shows out of memory and I forced to restart the server to work again.Then i decided to use connection manager after going through blogs. After using connection manager, openfire is running good but connection manager running out of memory.
I am using jre1.7.0_45
memory setting of openfire: OPENFIRE_OPTS="-Xmx4596m"
memory setting of connection manager : JVM_SETTINGS="-Xms512m -Xmx3024m"
error i am getting in connection manager when its going out of memory
I have analysed the memory dump using JHAT. Below is the instance count generated through JHAT
Instance Counts for All Classes (including platform)
116835 instances of class java.util.HashMap$Entry
65899 instances of class [B
59965 instances of class java.util.TreeMap$Entry
47852 instances of class [I
33249 instances of class java.lang.Object
26156 instances of class java.math.BigInteger
25383 instances of class [C
19750 instances of class java.lang.String
14180 instances of class java.util.LinkedHashMap$Entry
13057 instances of class [Ljava.util.HashMap$Entry;
10982 instances of class [Ljava.lang.String;
10954 instances of class java.util.HashMap
10685 instances of class org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl
10685 instances of class org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1
10073 instances of class java.util.concurrent.ConcurrentLinkedQueue$Node
8596 instances of class java.lang.ref.ReferenceQueue$Lock
8596 instances of class java.util.LinkedHashMap
8594 instances of class java.lang.ref.ReferenceQueue
8562 instances of class sun.security.util.MemoryCache
8553 instances of class java.net.InetSocketAddress
8553 instances of class java.net.InetSocketAddress$InetSocketAddressHolder
8545 instances of class java.security.MessageDigest$Delegate
7369 instances of class java.util.concurrent.atomic.AtomicInteger
7032 instances of class [Ljava.lang.Object;
6600 instances of class java.util.ArrayList
6533 instances of class java.util.LinkedList
6423 instances of class java.util.concurrent.ConcurrentLinkedQueue
6418 instances of class [Ljava.security.cert.X509Certificate;
6408 instances of class sun.security.provider.MD5
4884 instances of class java.nio.HeapByteBuffer
4799 instances of class java.nio.DirectByteBuffer
4793 instances of class java.nio.DirectByteBuffer$Deallocator
4793 instances of class sun.misc.Cleaner
4584 instances of class sun.security.util.ObjectIdentifier
4401 instances of class sun.security.x509.AlgorithmId
4322 instances of class java.lang.ref.Finalizer
4282 instances of class java.net.InetAddress$InetAddressHolder
4280 instances of class sun.security.ssl.EphemeralKeyManager$EphemeralKeyPair
4280 instances of class sun.security.ssl.SSLSessionContextImpl
4280 instances of class sun.security.ssl.SunX509KeyManagerImpl$X509Credentials
4279 instances of class java.net.Inet4Address
4275 instances of class java.lang.StringBuilder
4273 instances of class sun.security.ssl.CipherBox
4273 instances of class sun.security.ssl.MAC
4272 instances of class com.sun.crypto.provider.ARCFOURCipher
4272 instances of class com.sun.crypto.provider.HmacCore
4272 instances of class com.sun.crypto.provider.HmacMD5
4272 instances of class javax.crypto.Cipher
4272 instances of class javax.crypto.Mac
3385 instances of class java.util.concurrent.ConcurrentHashMap$HashEntry
2676 instances of class [S
2539 instances of class sun.security.util.DerInputBuffer
Heap Histogram
All Classes (excluding platform)
Class Instance Count Total Size
class [B 65899 3006797536
class [C 25383 15929672
class [I 47852 8387968
class java.util.HashMap$Entry 116835 3271380
class [Ljava.util.HashMap$Entry; 13057 2600880
class java.util.TreeMap$Entry 59965 2458565
class [Ljava.lang.String; 10982 1164920
class java.math.BigInteger 26156 732368
class [Ljava.lang.Object; 7032 709968
class java.util.LinkedHashMap$Entry 14180 623920
class org.apache.mina.transport.socket.nio.SocketSessionImpl 2137 585538
class java.util.HashMap 10954 569608
class java.util.LinkedHashMap 8596 524356
class org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl 10685 512880
class sun.security.ssl.SSLEngineImpl 2137 446633
class sun.security.provider.MD5 6408 435744
class javax.crypto.Cipher 4272 363120
class java.lang.String 19750 316000
class sun.nio.ch.SocketChannelImpl 2137 312002
Let me know if you can make out anything abnormal out of this? I would be very helpful if you can through some light on this
I can paste if you need any other out of JHAT
Many Thanks,
Shamjith