Re: Oracle Grid-manager cannot connect to database instances

On Jul 20, 12:45 pm, Kuwerti <avanros..._at_hotmail.com> wrote:
> Hi All,
>
> I have two lan's seperated by a router.
> On lan1 i am running oracle EM-grid control. On lan2 there are several
> oracle databases (all using the grid-agent)
> The problem is that i see all targets in grid control (agents,
> listener and database instances)
> Agents and listenrs are NO problem, but when i try to view in grid
> control the database instance i always get the error:
> "Io exception: The Network Adapter could not establish the connection"
> or more detailed:
>
> 2007-07-20 12:31:25,203 [MetricCollector:HOMETAB_THREAD600:60] ERROR
> rt.DbMetricCollectorTarget _getAllData.326 -
> oracle.sysman.emSDK.emd.comm.CommException: cis_amst2
> oracle.sysman.emSDK.emd.comm.CommException: cis_amst2
> at
> oracle.sysman.emSDK.emd.comm.EMDClient.getResponseForRequest(EMDClient.java­:
> 1543)
> at oracle.sysman.emSDK.emd.comm.EMDClient.getMetrics(EMDClient.java:
> 915)
> at
> oracle.sysman.emo.perf.metric.rt.DbHomeTab._getAllData(DbHomeTab.java:
> 322)
> at oracle.sysman.emo.perf.metric.rt.DbHomeTab.getData(DbHomeTab.java:
> 143)
> at
> oracle.sysman.emo.perf.metric.eng.MetricCached.collectCachedData(MetricCach­ed.java:
> 404)
> at
> oracle.sysman.emo.perf.metric.eng.MetricCollectorThread._collectCachedData(­MetricCollectorThread.java:
> 596)
> at
> oracle.sysman.emo.perf.metric.eng.MetricCollectorThread.run(MetricCollector­Thread.java:
> 320)
> at java.lang.Thread.run(Thread.java:534)
>
> I Think is has something to do whith the router (blocking a port which
> is needed for the action) But i do not know which port to open. Can
> someone help?
>
> Regards,
> Anneke

Those ports are usually documented. Apart from that Oracle Grid Control uses OHS and during installation a portslist.ini is generated. You could easily read that and telnet into every individual port mentioned in that list to isolate the problem.

--
Sybrand Bakker
Senior Oracle DBA