Fixes are available
17.0.0.2: WebSphere Application Server Liberty 17.0.0.2
17.0.0.3: WebSphere Application Server Liberty 17.0.0.3
17.0.0.4: WebSphere Application Server Liberty 17.0.0.4
18.0.0.1: WebSphere Application Server Liberty 18.0.0.1
18.0.0.2: WebSphere Application Server Liberty 18.0.0.2
18.0.0.3: WebSphere Application Server Liberty 18.0.0.3
18.0.0.4: WebSphere Application Server Liberty 18.0.0.4
19.0.0.1: WebSphere Application Server Liberty 19.0.0.1
19.0.0.2: WebSphere Application Server Liberty 19.0.0.2
19.0.0.3: WebSphere Application Server Liberty 19.0.0.3
19.0.0.4: WebSphere Application Server Liberty 19.0.0.4
19.0.0.5: WebSphere Application Server Liberty 19.0.0.5
19.0.0.6: WebSphere Application Server Liberty 19.0.0.6
19.0.0.7: WebSphere Application Server Liberty 19.0.0.7
19.0.0.8: WebSphere Application Server Liberty 19.0.0.8
19.0.0.9: WebSphere Application Server Liberty 19.0.0.9
19.0.0.10: WebSphere Application Server Liberty 19.0.0.10
19.0.0.11: WebSphere Application Server Liberty 19.0.0.11
19.0.0.12: WebSphere Application Server Liberty 19.0.0.12
20.0.0.1: WebSphere Application Server Liberty 20.0.0.1
20.0.0.2: WebSphere Application Server Liberty 20.0.0.2
20.0.0.3: WebSphere Application Server Liberty 20.0.0.3
20.0.0.4: WebSphere Application Server Liberty 20.0.0.4
20.0.0.5: WebSphere Application Server Liberty 20.0.0.5
20.0.0.6: WebSphere Application Server Liberty 20.0.0.6
20.0.0.7: WebSphere Application Server Liberty 20.0.0.7
20.0.0.8: WebSphere Application Server Liberty 20.0.0.8
20.0.0.9: WebSphere Application Server Liberty 20.0.0.9
20.0.0.10: WebSphere Application Server Liberty 20.0.0.10
20.0.0.11: WebSphere Application Server Liberty 20.0.0.11
20.0.0.12: WebSphere Application Server Liberty 20.0.0.12
21.0.0.3: WebSphere Application Server Liberty 21.0.0.3
21.0.0.4: WebSphere Application Server Liberty 21.0.0.4
21.0.0.5: WebSphere Application Server Liberty 21.0.0.5
21.0.0.6: WebSphere Application Server Liberty 21.0.0.6
21.0.0.7: WebSphere Application Server Liberty 21.0.0.7
21.0.0.8: WebSphere Application Server Liberty 21.0.0.8
21.0.0.9: WebSphere Application Server Liberty 21.0.0.9
21.0.0.1: WebSphere Application Server Liberty 21.0.0.1
21.0.0.2: WebSphere Application Server Liberty 21.0.0.2
21.0.0.10: WebSphere Application Server Liberty 21.0.0.10
21.0.0.11: WebSphere Application Server Liberty 21.0.0.11
21.0.0.12: WebSphere Application Server Liberty 21.0.0.12
22.0.0.1: WebSphere Application Server Liberty 22.0.0.1
22.0.0.2: WebSphere Application Server Liberty 22.0.0.2
22.0.0.3: WebSphere Application Server Liberty 22.0.0.3
22.0.0.4: WebSphere Application Server Liberty 22.0.0.4
APAR status
Closed as program error.
Error description
When resolving up a multi-address corbaname: or corbaloc: URL, the Yoko ORB in Liberty attempts a lookup of the remote name service at the first address. If this fails with a TRANSIENT exception (e.g. due to the server being stopped) the processing escapes the retry logic and no connection is attempted to the second and subsequent addresses. The error seen will be of the form: org.omg.CORBA.BAD_PARAM: other: corbaname evaluation error:attempt to establish connection failed Error connecting to host amongst the stack trace will be: Caused by: org.omg.CORBA.TRANSIENT: attempt to establish connection failedError connecting to host
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: Users using Liberty EJB support to access * * clustered EJBs in WAS classic * **************************************************************** * PROBLEM DESCRIPTION: Liberty cannot invoke clustered EJBs in * * WAS classic, failing with CORBA * * exceptions TRANSIENT and BAD_PARAM. * **************************************************************** * RECOMMENDATION: * **************************************************************** Liberty cannot invoke clustered EJBs in WAS classic, failing with CORBA exceptions TRANSIENT and BAD_PARAM. This happens because the code to handle multi-endpoint IORs in Liberty does not involve the Yoko ORB and the Yoko ORB sees all possible connections as being to the first endpoint. Yoko caches these incorrectly, and other, subsequent messages are misdirected to an invalid endpoint.
Problem conclusion
The Yoko ORB is modified to accept multi-endpoint IORs and cache the connections in an endpoint-specific way. The logic to select an endpoint is removed from the Liberty code. Yoko now queries the Liberty plugin for a description of all the endpoints and queries each in turn. The fix for this APAR is currently targeted for inclusion in fix pack 17.0.0.2. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Use only standalone WAS classic server instances or change the client's lookup string to use the server-specific naming context to retrieve a reference to a single IOR. Do NOT use multi- address corbanames (no failover).
Comments
APAR Information
APAR number
PI66702
Reported component name
LIBERTY PROFILE
Reported component ID
5724J0814
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-01
Closed date
2017-05-23
Last modified date
2017-05-23
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
LIBERTY PROFILE
Fixed component ID
5724J0814
Applicable component levels
R850 PSY
UP
Document Information
Modified date:
04 May 2022