[DERBY-5347] Derby loops filling logs and consuming all CPU with repeated error: java.net.SocketException: EDC5122I Input/output error.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.7.1.1
• Fix Version/s: 10.5.3.2, 10.6.2.4, 10.7.1.4, 10.8.2.2, 10.9.1.0
• Component/s: Network Server

Environment

java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build pmz31devifx-20100215 (SR11 FP1 ))
IBM J9 VM (build 2.3, J2RE 1.5.0 IBM J9 2.3 z/OS s390-31 j9vmmz3123ifx-20100127a (JIT enabled)
J9VM - 20100122_52103_bHdSMr
JIT - 20091016_1845ifx1_r8
GC - 20091026_AA)
JCL - 20100215

• Urgency: Normal
• Bug behavior facts: Crash, Performance
• Assignee: Katherine Marsden
• Reporter: Force Rs
• Created: 20/Jul/11 19:47
• Updated: 17/Jun/13 09:19
• Resolved: 21/Dec/11 16:56

Description

When a TCP/IP Stack on a z/OS system running Derby is stopped and started, Derby loops with the following stack trace repeated until disk space is exhausted on the logging file system:

Wed Jul 20 07:49:51 CDT 2011 : EDC5122I Input/output error.
java.net.SocketException: EDC5122I Input/output error.
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:457)
at java.net.ServerSocket.implAccept(ServerSocket.java:473)
at java.net.ServerSocket.accept(ServerSocket.java:444)
at org.apache.derby.impl.drda.ClientThread$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(AccessController.java:241)
at org.apache.derby.impl.drda.ClientThread.run(Unknown Source)

The derby log we generated was 498 megabytes and had 1,883,750 of these stack traces.

Since Derby originated from IBM, the following link may provide a valuable clue as to how to fix the defect in Derby:

http://www-01.ibm.com/support/docview.wss?uid=swg1PQ93090