Create Child repository on Satellite 5.8 : Incompatible parent and child channel architectures

Solution Verified - Updated -

Environment

Red Hat Satellite 5.8

Issue

  • When creating a custom child channel with the same architecture PPC64LE as the parent channel , the following error shows on the webUI
Incompatible parent and child channel architectures

Resolution

1) Get the parent channel architecture ID

# su - postgres -c "psql -d rhnschema -c\" SELECT * from rhnchannelarch;\""
 id  |      label      | arch_type_id |     name     |            created            |           modified            
-----+-----------------+--------------+--------------+-------------------------------+-------------------------------
 520 | channel-aarch64 |            1 | AArch64      | 2015-01-07 04:00:11+01        | 2015-01-07 04:00:11+01
 521 | channel-ppc64le |            1 | PPC64LE      | 2015-01-07 04:00:11+01        | 2015-01-07 04:00:11+01      <<<<<<<<
 500 | channel-ia32    |            1 | IA-32        | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 501 | channel-ia64    |            1 | IA-64        | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 502 | channel-sparc   |            1 | Sparc        | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 503 | channel-alpha   |            1 | Alpha        | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 504 | channel-s390    |            1 | s390         | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 505 | channel-s390x   |            1 | s390x        | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 506 | channel-iSeries |            1 | iSeries      | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 507 | channel-pSeries |            1 | pSeries      | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 508 | channel-x86_64  |            1 | x86_64       | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01
 509 | channel-ppc     |            1 | PPC          | 2012-03-21 16:46:06+01        | 2012-03-21 16:46:06+01

2) Insert a new row on table rhnchildchannelarchcompat contains the parent and child architecture ID.

# su - postgres -c "psql -d rhnschema -c\"INSERT INTO rhnchildchannelarchcompat (parent_arch_id, child_arch_id, created, modified) VALUES (521, 521, '2015-01-07 04:00:11+01', '2015-01-07 04:00:11+01');\""

# Expected output
INSERT 0 1

3) Verify the new row
# su - postgres -c "psql -d rhnschema -c\" SELECT * FROM rhnchildchannelarchcompat WHERE parent_arch_id=521;\""
 parent_arch_id | child_arch_id |        created         |        modified        
----------------+---------------+------------------------+------------------------
            521 |           521 | 2015-01-07 04:00:11+01 | 2015-01-07 04:00:11+01

Root Cause

  • The parent channel architecture ID is not existing on the database table rhnchildchannelarchcompat which causes the mismatch between the parent and child channels architectures .

Diagnostic Steps

1) Check the error message on the webUI on tomcat log file /var/log/tomcat6/catalina.out :

catalina.out-20190317:2019-03-15 13:29:49,323 [TP-Processor6] ERROR com.redhat.rhn.common.localization.LocalizationService - *** ERROR: Message with id: [Incompatible parent and child channel architectures] not found.*** called by com.redhat.rhn.frontend.struts.XmlMessageResources.getMessage(XmlMessageResources.java:85)

2) The parent channel architecture ID has not been added to the child compatibility table rhnchildchannelarchcompat while creating the parent channel because of PSQLException error on /var/log/rhn/rhn_taskomatic_daemon.log

INFO   | jvm 1    | 2019/03/12 21:41:16 | 2019-03-12 21:41:16,007 [Thread-57] ERROR com.redhat.rhn.taskomatic.task.ChannelRepodata - Error un/marking in use for channel_label: rhel-ppc64le-server-7
INFO   | jvm 1    | 2019/03/12 21:41:16 | Caused by:
INFO   | jvm 1    | 2019/03/12 21:41:16 | org.hibernate.exception.JDBCConnectionException: could not update: [com.redhat.rhn.taskomatic.TaskoRun#8163194]
INFO   | jvm 1    | 2019/03/12 21:41:16 | Caused by:
INFO   | jvm 1    | 2019/03/12 21:41:16 | org.postgresql.util.PSQLException: An I/O error occured while sending to the backend
INFO   | jvm 1    | 2019/03/12 21:41:16 | Caused by:
INFO   | jvm 1    | 2019/03/12 21:41:16 | java.net.SocketException: Broken pipe (Write failed)

# su - postgres -c "psql -d rhnschema -c\"SELECT * from rhnchildchannelarchcompat where parent_arch_id=(select id from rhnchannelarch where name='PPC64LE') ;;\""
 parent_arch_id | child_arch_id | created | modified 
----------------+---------------+---------+----------
(0 rows)

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