DOUG,
they are not needed until you are using GI, without it you have to use them for
automation.
it any case, now we have situation when broker has stopped services at GI level, but they are up at
instance level and registered with listener
so, it may be:
* manual service startup
* trigger
* some king of magic
o like oracle BUG ... ;)
what to do next:
* check instance alert.log at the time of switchover. you have to see services
reset and after set
again - that have to be interesting
* check listener.log at the time of switchover for services deregistration and
registration again
or no such operations
* check for GI Agent log for services related activities
Best Regards,
Oleksandr Denysenko
16.05.2018 19:31, DOUG KUSHNER пишет:
We have not implemented any fail-over triggers. It was my understanding that they were required pre-11.2, before the role attribute had been added to service config, but in 11.2.0.4 and later are not needed.
On May 16, 2018 at 12:15 PM Oleksandr Denysenko <odenysenko@xxxxxxxxx> wrote:
Niall,
documentation says <https://docs.oracle.com/database/121/NETAG/advcfg.htm#sthref817> that it's *ON *by default
/Connect-time failover is turned //|on|//by default for multiple address
lists
(ADDRESS_LIST), connect descriptors (DESCRIPTION), and multiple connect
descriptors
(DESCRIPTION_LIST)./
Best Regards,
Oleksandr Denysenko
16.05.2018 18:57, Niall Litchfield пишет:
If you are doing client-side failover your TNS entry would need to be (I think)
ABCR_USR =
(DESCRIPTION =
*(FAILOVER=ON)*
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = abcr-prim-scan)(PORT = 1521)) <<<
This is new standby
(ADDRESS = (PROTOCOL = TCP)(HOST = abcr-stby-scan)(PORT = 1521)) <<<
This is new primary
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ABCR_USR)
)
)
You should check the Net Services Administration Guide to make sure I've got that in the right place (I likely haven't). The principle being though that if you aren't using TAF/FAN then its up to the client to retry addresses until one succeeds.
On Wed, May 16, 2018 at 9:55 AM, Doug Kushner <dougk5@xxxxxxx
<mailto:dougk5@xxxxxxx>> wrote:
Additional info as requested, all from the first node of the new standby
RAC server.
NAME TYPE VALUE
------------------------------------ -----------
-------------------------------------------
db_unique_name string ABCR1
service_names string ABCR_PERL,ABCR_TSAM,ABCR_USR,ABCR_WEB,ABCR1
The HOST names in the following ADDRESS_LIST are DNS cnames that alias the
scan names on
each of the platforms.
ABCR_USR =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = abcr-prim-scan)(PORT = 1521)) <<<
This is new standby
(ADDRESS = (PROTOCOL = TCP)(HOST = abcr-stby-scan)(PORT = 1521)) <<<
This is new primary
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = ABCR_USR)
)
)
Listener entries for the other ABCR_* services are identical to the
ABCR_USR entry and have
been omitted.
LSNRCTL> services
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
Services Summary...
Service "ABCR1" has 1 instance(s).
Instance "ABCR11", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1504 refused:0 state:ready
LOCAL SERVER
Service "ABCR1_DGB" has 1 instance(s).
Instance "ABCR11", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1504 refused:0 state:ready
LOCAL SERVER
Service "ABCR1_DGMGRL" has 1 instance(s).
Instance "ABCR11", status UNKNOWN, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:32 refused:1
LOCAL SERVER
Service "ABCR_USR" has 1 instance(s).
Instance "ABCR11", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:1504 refused:0 state:ready
LOCAL SERVER
The command completed successfully
On 5/16/2018 12:19 AM, Oleksandr Denysenko wrote:
Hello.
please, show from new standby:
* show parameter db_unique_name
* show parameter service_name
* lsnrctl services
* full desctiption of used TNS connection string
Best Regards,
Oleksandr Denysenko
16.05.2018 8:19, Doug Kushner пишет:
Hi all,
Please be kind as this is my first posting to this list.
We have two RAC platforms with 12.2.0.1 GI and 11.2.0.4 RDBMS replicating
with Data
Guard. Switchover testing was successful using the broker with the roles
switching
successfully. Services have been configured with the primary role on both
platforms and
as expected, after switchover the services are stopped on the new standby
and started on
the new primary. The applications are not TAF/FAN aware, so these tests
assume for the
time being that we are shutting down the apps (external connections) and
restarting them
after the switchover.
Now for the question... We expected as part of this switchover, that the
services which
were stopped would automatically be de-registered from the listener on the
new standby
side. However, they are still registered, and we are wondering if it is
our expectations
or our configuration that is at fault.
With the services still registered on the standby side, sqlplus connection
attempts to the
service result in an ORA-01033 error, since the standby address is the
first of the two
addresses in the TNS alias.
Have not been able to find any info regarding deregistration of services in
the listener
after a switchover, so thought I would ask the experts.
Thanks,
Doug
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--
Niall Litchfield
Oracle DBA
http://www.orawin.info