Re: Node Evictions
- From: Guillermo Alan Bort <cicciuxdba@xxxxxxxxx>
- To: TESTAJ3@xxxxxxxxxxxxxx
- Date: Thu, 24 Mar 2011 13:39:24 -0300
I had a somewhat interesting problem last week as a node got evicted because
it could not write to the voting disk. Of course, there was a minor hiccup
on the storage (it's a freaking NAS) and it may happen again... but it's a
dev database so node evictions are tolerable. Prod is on SAN and we don't
have that problem (luckily)
perhaps you should check if there was any problem with the voting or crs
access? check the node that was not evicted, why did it evic the other node?
Alan.-
On Thu, Mar 24, 2011 at 12:15 PM, <TESTAJ3@xxxxxxxxxxxxxx> wrote:
>
> nope nothing interesting.
>
> thanks to everyone for your help.
>
> joe
>
> _______________________________________
> Joe Testa, Oracle Certified Professional
> Senior Engineering & Administration Lead
> (Work) 614-677-1668
> (Cell) 614-312-6715
>
>
>
>
>
> From: Andrew Kerber <andrew.kerber@xxxxxxxxx> To:
> manuelaout@xxxxxxxxxxxxxx Cc: "Oracle-L@xxxxxxxxxxxxx" <
> Oracle-L@xxxxxxxxxxxxx> Date: 03/24/2011 11:11 AM Subject: Re: Node
> Evictions Sent by: oracle-l-bounce@xxxxxxxxxxxxx
> ------------------------------
>
>
>
> Is there anything in the oracle alert logs? Sometimes it will show up
> there, or in the system logs.
>
> On Thu, Mar 24, 2011 at 10:00 AM, Manuela Atoui <*
> manuelaout@xxxxxxxxxxxxxx* <manuelaout@xxxxxxxxxxxxxx>> wrote:
> Hello Joe,
> as other posters already mentioned, node eviction is not expected behavior.
> Apart from sar and other OS data collection tools, ask the sysadmins to
> look after the network, e.g. faulty network cables etc. can also cause node
> eviction.
>
> Kind regards
>
> Manuela Atoui
> Expert Data Systems s.a.r.l.
> Senior Oracle DBA
>
> Berytech Technological Pole
> Mar Roukoz, Mkalles, Beirut, Lebanon*
> **+961 4 533 040* <%2B961%204%20533%20040> - *+961 70 780
> 959*<%2B961%2070%20780%20959>
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> *manuela@xxxxxxxxx*<http://domainunion.de/xxlmail/newmsg.php?sid=%7B4D8B57BA5BF97-4D8B57BA5C760-1300977594%7D&tid=1&lid=10&nameto=manuela@xxxxxxxxx>
> *
> **www.ed-sys.eu* <http://www.ed-sys.eu/>
>
>
>
>
> On Thu, Mar 24, 2011 at 4:35 PM, Amaral, Rui <*Rui.Amaral@xxxxxxxxxxxxxxxx
> * <Rui.Amaral@xxxxxxxxxxxxxxxx>> wrote:
> you might want to get your sysadmins to get sar (or systemtap) to collect
> OS data periodically as things like a CPU or i/o bound system may not
> necessarily be in the cluster logs.
>
>
> Rui Amaral
> Database Administrator
> ITS - SSG
> TD Bank Financial Group
> 220 Bay St., 11th Floor
> Toronto, ON, CA, M5K1A2
> (bb) *(647) 204-9106* <%28647%29%20204-9106>
>
>
>
> ------------------------------
> *From:* *TESTAJ3@xxxxxxxxxxxxxx* <TESTAJ3@xxxxxxxxxxxxxx> [mailto:*
> TESTAJ3@xxxxxxxxxxxxxx* <TESTAJ3@xxxxxxxxxxxxxx>] *
> Sent:* Thursday, March 24, 2011 10:31 AM*
> To:* Amaral, Rui*
> Cc:* Oracle-L@xxxxxxxxxxxxx*
> Subject:* RE: Node Evictions
>
>
> Well once research started, the cssd logs had rotated and information was
> gone, so we're going to run
> *diagcollection.pl*<http://diagcollection.pl/>soon as the evicted node comes
> back to the cluster, of course the next time
> it happens.
>
> joe
>
> _______________________________________
> Joe Testa, Oracle Certified Professional
> Senior Engineering & Administration Lead
> (Work) *614-677-1668* <614-677-1668>
> (Cell) *614-312-6715* <614-312-6715>
>
>
>
>
> From: "Amaral, Rui"
> <*Rui.Amaral@xxxxxxxxxxxxxxxx*<Rui.Amaral@xxxxxxxxxxxxxxxx>
> > To: "'*TESTAJ3@xxxxxxxxxxxxxx* <TESTAJ3@xxxxxxxxxxxxxx>'" <*
> TESTAJ3@xxxxxxxxxxxxxx* <TESTAJ3@xxxxxxxxxxxxxx>>, "Oracle-L@xxxxxxxxxxxxx"
> <Oracle-L@xxxxxxxxxxxxx> Date: 03/24/2011 10:21 AM Subject: RE: Node
> Evictions Sent by:
> *oracle-l-bounce@xxxxxxxxxxxxx*<oracle-l-bounce@xxxxxxxxxxxxx>
>
> ------------------------------
>
>
>
> correct. What are you seeing the crs logs?
>
> Rui Amaral
> Database Administrator
> ITS - SSG
> TD Bank Financial Group
> 220 Bay St., 11th Floor
> Toronto, ON, CA, M5K1A2
> (bb) *(647) 204-9106* <%28647%29%20204-9106>
>
>
>
> ------------------------------
> *From:* *oracle-l-bounce@xxxxxxxxxxxxx* <oracle-l-bounce@xxxxxxxxxxxxx> [*
> mailto:oracle-l-bounce@xxxxxxxxxxxxx* <oracle-l-bounce@xxxxxxxxxxxxx>] *On
> Behalf Of **TESTAJ3@xxxxxxxxxxxxxx* <TESTAJ3@xxxxxxxxxxxxxx>*
> Sent:* Thursday, March 24, 2011 10:15 AM*
> To:* Oracle-L@xxxxxxxxxxxxx*
> Subject:* Node Evictions
>
>
> Is it normal for node evictions to happen? If all is going well, then
> there shouldn't be evictions right?
>
> CRS 11.1.0.7
> DB: 11.1.0.7
>
> all on linux.
>
> joe
>
> _______________________________________
> Joe Testa, Oracle Certified Professional
> Senior Engineering & Administration Lead
> (Work) *614-677-1668* <614-677-1668>
> (Cell) *614-312-6715* <614-312-6715>
>
>
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> --
> Andrew W. Kerber
>
> 'If at first you dont succeed, dont take up skydiving.'
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