PQ61459: BBOSMSS RECEIVES ABENDDC3 REASON 090E0001 FROM BBO3ENQP/GQSCAN WHILE A DIFFERENT SYSTEM IS PARTITIONED OUT OF SYSPLEX | |||||||||||||||||||||||||||
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APAR status Closed as fixed if next. Error description In a sysplex, one system is running WebSphere and another system that is not running WebSphere. The system that is not running WebSphere is partitioned out of the sysplex, the Systems Management server server region, BBOSMSS, on the system that is running WebSphere receives abendDC3 with reason 090E0001. The following messages can be seen in the BBOSMSS job log: CEE3250C The system or user abend SDC3 R=090E0001 was issued. From compile unit BBO3ENQP at entry point BBO3TENQ at compile unit offset.... IEF450I BBOSMSS BBOSMSS - ABEND=SDC3 U0000 REASON=090E0001 . After the three tries then WLM stops the application environment for Systems Management: BBOU0199E UNABLE TO SCHEDULE WORK, WLM APPLICATION ENVIRONMENT CBSYSMGT HAS STOPPED. . The command to partition the system out of the sysplex is not issued from the system where WebSphere is running. Abend reason code 090E0001 indicates the MVS GQSCAN service cannot give an answer to the WebSphere call from BBO3ENQP to the MVS GQSCAN service trying to determine the status of WebSphere servers on this same system, resulting in the DC3 abend, reason 090E0001. GQSCAN is not giving an answer while the system is being partitioned out of the sysplex. . No CEEDUMPs nor SVC dumps were produced from this abend, only the WLM application environment for Systems Management being stopped and the abendDC3 reason 090E0001. There were no indications in SYSLOG that a dump had been supressed. There may be no indication of any other activity in SYSLOG or the following message may be seen: ISG343I 15.08.25 GRS STATUS 546 ONLY LOCAL RESOURCE DATA RETURNED - UNABLE TO OBTAIN GLOBAL DATA FROM ALL SYSTEMS IN THE SYSPLEX NO REQUESTS PENDING FOR ISGLOCK STRUCTURE NO LATCH CONTENTION EXISTS . WebSphere needs to handle the case where it cannot obtain an answer from GQSCAN in this scenario.Local fix Wait until the system has completed partitioning out of the sysplex before resuming the WLM application environment for Systems Management.Problem summary **************************************************************** * USERS AFFECTED: * * All users of WebSphere Application Server * * V4.0 and V4.0.1 for z/OS and OS/390 * **************************************************************** * PROBLEM DESCRIPTION: ABENDDC3/ABENDSDC3-090E0001 from * * BBO3ENQP while a system is partioning * * out of the sysplex. * **************************************************************** * RECOMMENDATION: * **************************************************************** ENQs are used for a number of reasons in the WAS infrastructure and the GQSCAN service is used to determine if particular ENQs are held or not. Since WAS activity is across the sysplex, ENQs are generally SYSTEMS in scope. The GQSCAN service cannot return sysplex-wide information on ENQs while a system is partitioning out of the sysplex and returns a RC/RSN of x'C'/x'C'. Depending on the reason the GQSCAN was being done, various failures may occur because WebSphere experiences failures using GQSCAN. In the situation associated with the APAR resulted in a server region failing to start. Note that not all GQSCAN failures will result in the abend/reason code mentioned in this APAR as GQSCANs are done in numerous places within the WebSphere product.Problem conclusion Temporary fix Comments This APAR is being closed FIN with concurrence from the submitting customer. A solution to this problem will be delivered in a WebSphere Application Server for z/OS and OS/390 release within the next 18 months.
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 401
Software edition:
Reference #: PQ61459
IBM Group: Software Group
Modified date: Jul 1, 2002
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