Hello,
I've setup some high availability for our hosted IPTs here. Basically I
have two machines on which two VM-like (FreeBSD jails) have been created
in which all hosted IPT are installed (along with Tomcat 8, OpenJDK 8).
The IPT data directory is shared (NFS) through the two instances, and
in front of those instances HAProxy is configured to dispatch the
requests in an active/passive mode which means that only one Tomcat is
accessed at time. If the primary Tomcat dies then the secondary take
over.
It seems to work well, but I'd like some feedback from IPT devs
regarding potential problems that I might have missed (if any). I'm
especially thinking about caching/locking issues and/or possible
corruption of the IPT data directory (which IMHO should not occur if
one instance if accessed at a time, but want to be sure).
Thanks!
Julien
--
Julien Cigar
Belgian Biodiversity Platform (http://www.biodiversity.be)
PGP fingerprint: EEF9 F697 4B68 D275 7B11 6A25 B2BB 3710 A204 23C0
No trees were killed in the creation of this message.
However, many electrons were terribly inconvenienced.
Dear all,
Our apologies in advance, but we expect disruptions in both GBIF and TDWG services next week, Thursday and Friday, 22-23 June 2017.
Partial outages may occur while we relocate the servers for GBIF's and TDWG's systems to a new data centre within the University of Copenhagen.
During this move, we anticipate that GBIF.org, demo.GBIF.org and the GBIF API will continue to operate on temporary servers, though user account creation, dataset registration and dataset crawling will all be temporarily suspended. The TDWG website and all TDWG mailing lists are likely to remain offline throughout the outage.
We apologize for any inconvenience and will strive to reduce the disruption and its duration as much as possible.
Best wishes,
Tim
