IV13299: NIO SELECT CALL IS GOING INTO TIGHT LOOP CAUSING A HANG

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
    .
    Stack Trace: N/A
    .
    NIO select call repeatedly returns with zero selected keys in a
    row causing a hang in JDK code
    

Local fix

Problem summary

  • The problem is caused due to the presence of narrow timing
    window existed between closing the channel and cancelling it's
    keys.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR11
    6.0.1 SR1 FP1
    7.0.0 SR1
    .
    JDK has been updated to fix the timing window problem to avoid
    the tight loop in NIO select code.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV13299

  • Reported component name

    JAVA CLASS LIBS

  • Reported component ID

    620700130

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-01-20

  • Closed date

    2012-02-17

  • Last modified date

    2012-11-02

  • 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 CLASS LIBS

  • Fixed component ID

    620700130

Applicable component levels

  • R600 PSY

       UP



Rate this page:

(0 users)Average rating

Add comments

Document information


More support for:

Runtimes for Java Technology
Java Class Libraries

Software version:

6.0

Reference #:

IV13299

Modified date:

2012-11-02

Translate my page

Machine Translation

Content navigation