Re: Replication using two Targets on one Machine?

Posted in 2005

Topics: Networking & sqlhosts Configuration, Platform-Specific Issues

Jonathan Leffler — Sat, 23 Jul 2005 00:34:18 -0700 — source: Usenet: comp.databases.informix

Only if you planned this in advance and have relative pathnames for the device files. Most people sensibly use absolute pathnames, and since the two sites are replicas, they both try to share the same files. One system will get upset when the other changes something it wasn't expecting... On 22 Jul 2005 10:13:05 -0700, caver <dmcbryde@courts.state.va.us> wrote: > I am running ER on HP-UX 11.11 using a primary/target setup. > > I have one physical machine for our target server with two Informix > instances: > -one running version 9.21.HC5 > -one running version 9.40.FC4 > > Currently the Primary servers only update the 9.21.HC5 instance. I > want to gradually move all replication to the 9.40.FC4 instance, then > shut off replication to the 9.21 instance. > > When I added replication for the 9.40.FC4 instance to the sqlhosts file > of the 9.21 instance, the database crashed. > > Am I able to replicate into two targets running different Informix > versions on the same machine? > > Thanks in advance for any insight. -daniel > > sending to informix-list

↪ replying to Jonathan Leffler

Madison Pruet — Sat, 23 Jul 2005 08:30:49 -0500 — source: Usenet: comp.databases.informix

The relative pathname is only a requirement with HDR, not ER. "Jonathan Leffler" <jleffler.iiug@gmail.com> wrote in message news:1122112297.81a0d1fa60d1835ff87c7d6b82571c6c@teranews... > > Only if you planned this in advance and have relative pathnames for > the device files. > Most people sensibly use absolute pathnames, and since the two sites > are replicas, they both try to share the same files. One system will > get upset when the other changes something it wasn't expecting... > > On 22 Jul 2005 10:13:05 -0700, caver <dmcbryde@courts.state.va.us> wrote: > > I am running ER on HP-UX 11.11 using a primary/target setup. > > > > I have one physical machine for our target server with two Informix > > instances: > > -one running version 9.21.HC5 > > -one running version 9.40.FC4 > > > > Currently the Primary servers only update the 9.21.HC5 instance. I > > want to gradually move all replication to the 9.40.FC4 instance, then > > shut off replication to the 9.21 instance. > > > > When I added replication for the 9.40.FC4 instance to the sqlhosts file > > of the 9.21 instance, the database crashed. > > > > Am I able to replicate into two targets running different Informix > > versions on the same machine? > > > > Thanks in advance for any insight. -daniel > > > > > > sending to informix-list

↪ replying to Madison Pruet

Jonathan Leffler — Sun, 24 Jul 2005 01:05:38 GMT — source: Usenet: comp.databases.informix

Madison Pruet wrote: > The relative pathname is only a requirement with HDR, not ER. > > "Jonathan Leffler" <jleffler.iiug@gmail.com> wrote: > >>Only if you planned this in advance and have relative pathnames for >>the device files. >>Most people sensibly use absolute pathnames, and since the two sites >>are replicas, they both try to share the same files. One system will >>get upset when the other changes something it wasn't expecting... >> >>On 22 Jul 2005 10:13:05 -0700, caver <dmcbryde@courts.state.va.us> wrote: >> >>>I am running ER on HP-UX 11.11 using a primary/target setup. My mistake - sorry. -- Jonathan Leffler #include <disclaimer.h> Email: jleffler@earthlink.net, jleffler@us.ibm.com Guardian of DBD::Informix v2005.01 -- http://dbi.perl.org/

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