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From "Ewald Wasscher (JIRA)" <j...@apache.org>
Subject [jira] Created: (DIRSERVER-1556) Error message: ERR_00004 The PDU buffer size is too small !
Date Thu, 23 Sep 2010 12:53:33 GMT
Error message: ERR_00004 The PDU buffer size is too small !
-----------------------------------------------------------

                 Key: DIRSERVER-1556
                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1556
             Project: Directory ApacheDS
          Issue Type: Bug
    Affects Versions: 1.5.7
         Environment: Windows Server 2003 SP2 / Sun JRE 6 update 21
            Reporter: Ewald Wasscher
            Priority: Critical


We're currently testing Apache Directory Server (ADS) in a custom environment for a customer
of ours. In this environment ADS is used to store certificates and certificate revocation
lists. At first everything seemed to be working fine, but we encounter an error that seems
to randomly occur every now. When adding an object, viewing an object in Directory Studio
or adding attributes (the certificate) to an existing object this fails with the following
message in apacheds-rolling.log: ERR_00004 The PDU buffer size is too small !. After encountering
this error I twice raised the max PDU buffer size in server.xml to:
 
maxPDUSize="40000000"
 
And restarted the server. Unfortunately the error still occurs every now and then. The issue
occurs seemingly randomly, independent of the accessed object or the LDAP client that is used.
If ADS is restarted and Directory Studio reconnects the same object can be viewed normally.

I'd appreciate if someone could explain why this occurs and, if possible, how this can be
fixed. A log fragment is below. The company name as it occurs in the log file has been modified.

Log fragment:

[16:58:09] ERROR [org.apache.directory.shared.ldap.codec.LdapEncoder] - ERR_04065 Ldap encoder
failed to encode object:     Search Result Entry
        entry
ServerEntry
    dn[n]: cn=Test 01 User+givenName=Test 01+mail=test01user@test.lan+sn=User,organizationalUnitName=Test,o=Test
Bedrijf, c=NL
    objectClass: organizationalPerson
    objectClass: person
    objectClass: inetOrgPerson
    objectClass: top
    sn: User
    mail: test01user@test.lan
    givenName: Test 01
    cn: Test 01 User
    x500uniqueidentifier: '0011001100111001011001100011010100110011011001100110010001100100001101110011011001100100001100110011001100110111001101000011011000110101001110010110000101100011001100000110011001100011001101000011011100110111011000100011001100110000001110000110000100110111'B
    businesscategory: Valid
    userCertificate;binary: '0x30 0x82 0x06 0xD6 0x30 0x82 0x04 0xBE 0xA0 0x03 0x02 0x01 0x02
0x02 0x10 0x39 ...'
, error : ERR_00004 The PDU buffer size is too small !
[16:58:09] WARN [org.apache.directory.server.ldap.LdapProtocolHandler] - Unexpected exception
forcing session to close: sending disconnect notice to client.
org.apache.mina.filter.codec.ProtocolEncoderException: org.apache.directory.shared.ldap.message.spi.ProviderException:
ERR_04065 Ldap encoder failed to encode object:     Search Result Entry
        entry
ServerEntry
    dn[n]: cn=Test 01 User+givenName=Test 01+mail=test01user@test.lan+sn=User,organizationalUnitName=Test,o=Test
Bedrijf, c=NL
    objectClass: organizationalPerson
    objectClass: person
    objectClass: inetOrgPerson
    objectClass: top
    sn: User
    mail: test01user@test.lan
    givenName: Test 01
    cn: Test 01 User
    x500uniqueidentifier: '0011001100111001011001100011010100110011011001100110010001100100001101110011011001100100001100110011001100110111001101000011011000110101001110010110000101100011001100000110011001100011001101000011011100110111011000100011001100110000001110000110000100110111'B
    businesscategory: Valid
    userCertificate;binary: '0x30 0x82 0x06 0xD6 0x30 0x82 0x04 0xBE 0xA0 0x03 0x02 0x01 0x02
0x02 0x10 0x39 ...'
, error : ERR_00004 The PDU buffer size is too small !
	at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:313)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:805)
	at org.apache.mina.filter.executor.ExecutorFilter.filterWrite(ExecutorFilter.java:706)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:805)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:731)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
	at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:428)
	at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:369)
	at org.apache.directory.server.ldap.handlers.SearchHandler.readResults(SearchHandler.java:334)
	at org.apache.directory.server.ldap.handlers.SearchHandler.doSimpleSearch(SearchHandler.java:749)
	at org.apache.directory.server.ldap.handlers.SearchHandler.handleIgnoringReferrals(SearchHandler.java:978)
	at org.apache.directory.server.ldap.handlers.SearchHandler.handleWithReferrals(SearchHandler.java:1054)
	at org.apache.directory.server.ldap.handlers.SearchHandler.handleWithReferrals(SearchHandler.java:78)
	at org.apache.directory.server.ldap.handlers.ReferralAwareRequestHandler.handle(ReferralAwareRequestHandler.java:94)
	at org.apache.directory.server.ldap.handlers.ReferralAwareRequestHandler.handle(ReferralAwareRequestHandler.java:57)
	at org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:208)
	at org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:58)
	at org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(DemuxingIoHandler.java:232)
	at org.apache.directory.server.ldap.LdapProtocolHandler.messageReceived(LdapProtocolHandler.java:193)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:713)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:793)
	at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:71)
	at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
	at org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.runTask(UnorderedThreadPoolExecutor.java:480)
	at org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.run(UnorderedThreadPoolExecutor.java:434)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.directory.shared.ldap.message.spi.ProviderException: ERR_04065 Ldap
encoder failed to encode object:     Search Result Entry
        entry
ServerEntry
    dn[n]: cn=Test 01 User+givenName=Test 01+mail=test01user@test.lan+sn=User,organizationalUnitName=Test,o=Test
Bedrijf, c=NL
    objectClass: organizationalPerson
    objectClass: person
    objectClass: inetOrgPerson
    objectClass: top
    sn: User
    mail: test01user@test.lan
    givenName: Test 01
    cn: Test 01 User
    x500uniqueidentifier: '0011001100111001011001100011010100110011011001100110010001100100001101110011011001100100001100110011001100110111001101000011011000110101001110010110000101100011001100000110011001100011001101000011011100110111011000100011001100110000001110000110000100110111'B
    businesscategory: Valid
    userCertificate;binary: '0x30 0x82 0x06 0xD6 0x30 0x82 0x04 0xBE 0xA0 0x03 0x02 0x01 0x02
0x02 0x10 0x39 ...'
, error : ERR_00004 The PDU buffer size is too small !
	at org.apache.directory.shared.ldap.codec.LdapEncoder.encodeBlocking(LdapEncoder.java:139)
	at org.apache.directory.shared.ldap.codec.LdapEncoder.encode(LdapEncoder.java:200)
	at org.apache.directory.shared.ldap.message.MessageEncoder.encode(MessageEncoder.java:125)
	at org.apache.directory.shared.asn1.codec.Asn1CodecEncoder.encode(Asn1CodecEncoder.java:58)
	at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:298)
	... 32 more
[16:58:09] WARN [org.apache.directory.shared.asn1.ber.Asn1Decoder] - The PDU has been fully
decoded but there are still bytes in the buffer.
[16:58:09] WARN [org.apache.directory.server.ldap.LdapProtocolHandler] - Null LdapSession
given to cleanUpSession.
[16:58:09] ERROR [org.apache.directory.shared.ldap.codec.LdapEncoder] - ERR_04065 Ldap encoder
failed to encode object:     Search Result Entry
        entry
ServerEntry
    dn[n]: cn=Test 01 User+givenName=Test 01+mail=test01user@test.lan+sn=User,organizationalUnitName=Test,o=Test
Bedrijf, c=NL
    objectClass: organizationalPerson
    objectClass: person
    objectClass: inetOrgPerson
    objectClass: top
    sn: User
    mail: test01user@test.lan
    givenName: Test 01
    cn: Test 01 User
    x500uniqueidentifier: '0011001100111001011001100011010100110011011001100110010001100100001101110011011001100100001100110011001100110111001101000011011000110101001110010110000101100011001100000110011001100011001101000011011100110111011000100011001100110000001110000110000100110111'B
    businesscategory: Valid
    userCertificate;binary: '0x30 0x82 0x06 0xD6 0x30 0x82 0x04 0xBE 0xA0 0x03 0x02 0x01 0x02
0x02 0x10 0x39 ...'
, error : ERR_00004 The PDU buffer size is too small !
[16:58:09] WARN [org.apache.directory.server.ldap.LdapProtocolHandler] - Unexpected exception
forcing session to close: sending disconnect notice to client.
org.apache.mina.filter.codec.ProtocolEncoderException: org.apache.directory.shared.ldap.message.spi.ProviderException:
ERR_04065 Ldap encoder failed to encode object:     Search Result Entry
        entry
ServerEntry
    dn[n]: cn=Test 01 User+givenName=Test 01+mail=test01user@test.lan+sn=User,organizationalUnitName=Test,o=Test
Bedrijf, c=NL
    objectClass: organizationalPerson
    objectClass: person
    objectClass: inetOrgPerson
    objectClass: top
    sn: User
    mail: test01user@test.lan
    givenName: Test 01
    cn: Test 01 User
    x500uniqueidentifier: '0011001100111001011001100011010100110011011001100110010001100100001101110011011001100100001100110011001100110111001101000011011000110101001110010110000101100011001100000110011001100011001101000011011100110111011000100011001100110000001110000110000100110111'B
    businesscategory: Valid
    userCertificate;binary: '0x30 0x82 0x06 0xD6 0x30 0x82 0x04 0xBE 0xA0 0x03 0x02 0x01 0x02
0x02 0x10 0x39 ...'
, error : ERR_00004 The PDU buffer size is too small !
	at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:313)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:805)
	at org.apache.mina.filter.executor.ExecutorFilter.filterWrite(ExecutorFilter.java:706)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1400(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.filterWrite(DefaultIoFilterChain.java:805)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.filterWrite(DefaultIoFilterChain.java:731)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callPreviousFilterWrite(DefaultIoFilterChain.java:506)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireFilterWrite(DefaultIoFilterChain.java:498)
	at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:428)
	at org.apache.mina.core.session.AbstractIoSession.write(AbstractIoSession.java:369)
	at org.apache.directory.server.ldap.handlers.SearchHandler.readResults(SearchHandler.java:334)
	at org.apache.directory.server.ldap.handlers.SearchHandler.doSimpleSearch(SearchHandler.java:749)
	at org.apache.directory.server.ldap.handlers.SearchHandler.handleIgnoringReferrals(SearchHandler.java:978)
	at org.apache.directory.server.ldap.handlers.SearchHandler.handleWithReferrals(SearchHandler.java:1054)
	at org.apache.directory.server.ldap.handlers.SearchHandler.handleWithReferrals(SearchHandler.java:78)
	at org.apache.directory.server.ldap.handlers.ReferralAwareRequestHandler.handle(ReferralAwareRequestHandler.java:94)
	at org.apache.directory.server.ldap.handlers.ReferralAwareRequestHandler.handle(ReferralAwareRequestHandler.java:57)
	at org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:208)
	at org.apache.directory.server.ldap.handlers.LdapRequestHandler.handleMessage(LdapRequestHandler.java:58)
	at org.apache.mina.handler.demux.DemuxingIoHandler.messageReceived(DemuxingIoHandler.java:232)
	at org.apache.directory.server.ldap.LdapProtocolHandler.messageReceived(LdapProtocolHandler.java:193)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.messageReceived(DefaultIoFilterChain.java:713)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextMessageReceived(DefaultIoFilterChain.java:434)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1200(DefaultIoFilterChain.java:46)
	at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.messageReceived(DefaultIoFilterChain.java:793)
	at org.apache.mina.core.filterchain.IoFilterEvent.fire(IoFilterEvent.java:71)
	at org.apache.mina.core.session.IoEvent.run(IoEvent.java:63)
	at org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.runTask(UnorderedThreadPoolExecutor.java:480)
	at org.apache.mina.filter.executor.UnorderedThreadPoolExecutor$Worker.run(UnorderedThreadPoolExecutor.java:434)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.directory.shared.ldap.message.spi.ProviderException: ERR_04065 Ldap
encoder failed to encode object:     Search Result Entry
        entry
ServerEntry
    dn[n]: cn=Test 01 User+givenName=Test 01+mail=test01user@test.lan+sn=User,organizationalUnitName=Test,o=Test
Bedrijf, c=NL
    objectClass: organizationalPerson
    objectClass: person
    objectClass: inetOrgPerson
    objectClass: top
    sn: User
    mail: test01user@test.lan
    givenName: Test 01
    cn: Test 01 User
    x500uniqueidentifier: '0011001100111001011001100011010100110011011001100110010001100100001101110011011001100100001100110011001100110111001101000011011000110101001110010110000101100011001100000110011001100011001101000011011100110111011000100011001100110000001110000110000100110111'B
    businesscategory: Valid
    userCertificate;binary: '0x30 0x82 0x06 0xD6 0x30 0x82 0x04 0xBE 0xA0 0x03 0x02 0x01 0x02
0x02 0x10 0x39 ...'
, error : ERR_00004 The PDU buffer size is too small !
	at org.apache.directory.shared.ldap.codec.LdapEncoder.encodeBlocking(LdapEncoder.java:139)
	at org.apache.directory.shared.ldap.codec.LdapEncoder.encode(LdapEncoder.java:200)
	at org.apache.directory.shared.ldap.message.MessageEncoder.encode(MessageEncoder.java:125)
	at org.apache.directory.shared.asn1.codec.Asn1CodecEncoder.encode(Asn1CodecEncoder.java:58)
	at org.apache.mina.filter.codec.ProtocolCodecFilter.filterWrite(ProtocolCodecFilter.java:298)
	... 32 more


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