Use this task to better understand messages received when
using peer restart and recovery.
Before you begin
Avoid trouble: Peer Restart and Recovery
(PRR) functionality is deprecated. You should use the integrated high
availability support for the transaction service subcomponent, instead
of Peer Restart and Recovery for transaction recovery. See the topic
Transaction
support in WebSphere Application Server for
more information about the integrated high availability support for
the transaction service subcomponent.
gotcha
There are RRS version
requirements that you must heed when using peer restart and recovery.
For more information on these requirements, see z/OS MVS™ Programming:
Resource Recovery.
About this task
If you receive the console message:
BBOT0015D OTS UNABLE TO RESOLVE ALL INCOMPLETE TRANSACTIONS FOR SERVER
string. REPLY CONTINUE OR TERMINATE.
Procedure
- Note the server name specified for string. in the
message.
- Go to the SYSPRINT, that is the status queue for that server,
and search for messages BBOT0019 - BBOT0022 that refer to that server.
- Read the resulting messages.
- Stop the server.
RRS does not allow an operator
to resolve an InDoubt UR if the DSRM for that UR is active at the
time. Therefore, you must stop the server. To do this, reply TERMINATE to
the CONTINUE/TERMINATE WTOR.
What to do next
You can use the following non-console messages to trigger
restart and recovery automation. These messages provide information
about daemon activities. Pay particular attention to the URID, XID
FormatId, XID Gtrid, and XIDBqual attributes. You need to use these
pieces of information when you manually resolve the relevant units
of work via the RRS panels.
- BBOO003E WEBSPHERE FOR z/OS CONTROL REGION string ENDED
ABNORMALLY, REASON= hstring.
- BBOO009E WEBSPHERE FOR z/OS DAEMON string ENDED ABNORMALLY,
REASON= hstring.
- BBOO0171I WEBSPHERE FOR z/OS CONTROL REGION string
NOT STARTING ON CONFIGURED SYSTEM string
- The following messages, which are written only in recovery and
restart mode, provide details about transactions that cannot be resolved
during restart and recovery:
- BBOT0008I TRANSACTION SERVICE RESTART INITIATED ON SERVER string
- BBOT0009I TRANSACTION SERVICE RESTART UR STATUS COUNTS
FOR SERVER string: IN-BACKOUT= dstring, IN-DOUBT= dstring,
IN-COMMIT= dstring
- BBOT0010I TRANSACTION SERVICE RESTART AND RECOVERY ON
SERVER string IS COMPLETE
- BBOT0011I SERVER string IS COLD STARTING WITH
RRS
- BBOT0012I SERVER string IS WARM STARTING WITH
RRS
- BBOT0013I TRANSACTION SERVICE RESTART AND RECOVERY ON
SERVER string IS COMPLETE. THE SERVER IS STOPPING.
- BBOT0014I TRANSACTION SERVICE RECOVERY PROCESSING FOR
RRS URID ' string ' IN SERVER string IS COMPLETE.
- BBOT0016I TRANSACTION SERVICE RESTART AND RECOVERY FOR
SERVER string IS NOT COMPLETE. THE SERVER IS STOPPING DUE
TO OPERATOR REPLY.
- BBOT0017I TRANSACTION SERVICE RESTART AND RECOVERY FOR
SERVER string IS CONTINUING DUE TO OPERATOR REPLY.
- BBOT0018I TRANSACTION SERVICE RESTART AND RECOVERY FOR
SERVER string IS STILL PROCESSING dstring INCOMPLETE
UNIT(S) OF RECOVERY.
- BBOT0019W UNABLE TO RESOLVE THE OUTCOME OF THE TRANSACTION
BRANCH DESCRIBED BY URID: ' string ' XID FORMATID: ' string '
XID GTRID: ' string ' XID BQUAL: ' string ' BECAUSE
THE OTS RECOVERY COORDINATOR FOR SERVER string ON HOST string: dstring
COULD NOT BE REACHED.
- BBOT0020W UNABLE TO PROVIDE THE SUBORDINATE OTS RESOURCE
IN SERVER string ON HOST string: dstring WITH THE
OUTCOME OF THE TRANSACTION DESCRIBED ON THIS SERVER BY URID:
' string ' XID FORMATID: ' string' XID GTRID:
' string ' XID BQUAL: ' string ' BECAUSE THIS SERVER
HAS BEEN UNABLE TO RESOLVE THE OUTCOME WITH A SUPERIOR NODE.
- BBOT0021W UNABLE TO string THE SUBORDINATE OTS
RESOURCE IN SERVER string ON HOST string: dstring FOR THE
TRANSACTION DESCRIBED ON THIS SERVER BY URID: ' string '
XID FORMATID: ' string ' XID GTRID: ' string ' XID
BQUAL: ' string ' OR ANOTHER RESOURCE INVOLVED IN THIS
UNIT OF RECOVERY BECAUSE ONE OR MORE RESOURCES COULD NOT BE REACHED
OR HAVE NOT YET REPLIED.
- BBOT0022W UNABLE TO FORGET THE TRANSACTION WITH HEURISTIC
OUTCOME DESCRIBED ON THIS SERVER BY URID: ' string ' XID FORMATID:
'string ' XID GTRID: ' string ' XID BQUAL: ' string '
BECAUSE THE SUPERIOR COORDINATOR FOR SERVER string ON HOST string: dstring
HAS NOT INVOKED FORGET ON THE REGISTERED RESOURCE.
Tips for RRS OperationsSee z/OS MVS
Programming: Resource Recovery, for RRS operations guidelines.
Tips
for RRS operations:
- If you have configured your log streams to the coupling facility,
then monitor your log streams to ensure offload is not occurring.
RRS will perform better if its recovery logs do not offload.
Avoid trouble: Proper sizing of the RRS logs is important.
Too small and you get reduced throughput since logger is off-loading
the logs too frequently. Too large and you could overflow your coupling
facility.
gotcha
- Keep the main and delayed (only contains active or live data)
logs in your coupling facility. Make sure the CF definitions don't
overflow.
Avoid trouble: A commit cannot occur
until the log record is written.
gotcha
- Until you stabilize your workloads, it is a good idea to use the
archive log. If you have an archive log configured, RRS will unconditionally
use it. However, there is a performance penalty for using it.