IZ60793: THREAD HANGS BINDING TO LDAP SERVER

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
    .
    Stack Trace: at java/lang/Object.wait(Native Method)
    at java/lang/Object.wait(Object.java:231(Compiled Code))
    at
    com/sun/jndi/ldap/Connection.readReply(Connection.java:434(Compi
    led Code))
    at
    com/sun/jndi/ldap/LdapClient.ldapBind(LdapClient.java:355(Compil
    ed Code))
    at
    com/sun/jndi/ldap/LdapClient.authenticate(LdapClient.java:207(Co
    mpiled Code))
    at com/sun/jndi/ldap/LdapCtx.connect(LdapCtx.java:2652(Compiled
    Code))
    at com/sun/jndi/ldap/LdapCtx.<init>(LdapCtx.java:298(Compiled
    Code))
    .
    We lost accessibility to both of our production websphere portal
    instances today.  The processes were still running on each host
    machine  but when attempting to access it via its host port, the
    browser would hang.
    SystemOut.log shows hung WebContainer threads.  Most of these
    threads are waiting for a response while trying to BIND to the
    remote LDAP (during WebSphere Portal user login):
    

Local fix

  • Restart LDAP Client
    

Problem summary

  • If a client does not receive a response from the LDAP Server
    when attempting to bind to it, the client will hang.
    

Problem conclusion

  • This defect will be fixed in:
    5.0.0 SR11
    .
    A system property com.sun.jndi.ldap.read.timeout has been added
    to the JVM.  If present, the LDAP bind attempt will timeout
    after the given number of milliseconds have elapsed and the
    client will throw a NamingException "LDAP response read timed
    out"
    .
    To obtain the fix:
    Install build 20090926 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ60793

  • Reported component name

    JAVA 5 CLASS LI

  • Reported component ID

    620500130

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-09-21

  • Closed date

    2009-09-25

  • Last modified date

    2009-09-25

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    JAVA 5 CLASS LI

  • Fixed component ID

    620500130

Applicable component levels

  • R500 PSN

       UP



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Document information


More support for:

Runtimes for Java Technology
Java Class Libraries

Software version:

5.0

Reference #:

IZ60793

Modified date:

2009-09-25

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