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© V.CLOUD
© V.cloud | please do not edit
© V.cloud
© V.cloud
© V.cloud | please do not edit
vCloud Director 10.2 and external Postgres DB
If you are not using the appliance for vCD for any reason, and you are sticking to the supported CentOS distribution for your cell - there is one DB change required on the DB server side after upgrading to 10.2. IMHO this could occur in earlier versions, as well. I have not tested it.
Having a relatively large vcd setup that services few thousand VMs now, our cell has production load. It seems though that DB connection pooling is not really well handled in the application. Thus, one could get connection pool exhaustion. Errors like these in the UI are one of the indications: [ 2c6d3e1e-8fa5-4f4f-859b-96781df7507b ] Cannot open connection - [pool-jetty-12388] Timeout: Pool empty. Unable to fetch a connection in 20 seconds, none available[size:75; busy:75; idle:0; lastwait:20000] One could easily check that is indeed the case: [root@vcd2 ~]# netstat -punta | grep :5432 | wc -l 76 Now, it turns out the vCD appliance also introduces some tune-ups on the postgres DB - namely setting an appropriate value for idle_in_transaction_session_timeout By default on Centos postgres 10 package from the official postgres rpm repo, this is set to 0 - which means there is no timeout for long-running transactions. Best practice would be to handle these in the app. However, vCD requires a value of 1 hour in the config. Either apply it run-tme: ALTER DATABASE vcloud SET idle_in_transaction_session_timeout = 3600000; or in postgresql.config file: idle_in_transaction_session_timeout = 3600000 # in milliseconds, 0 is disabled
Ehh ... Ada komputer ukurannya segini teman-teman.. daya listriknya juga cuma 5 Watt Lo ??????? Waaah.... Bisa bayangin ga tuh kalau lab di sekolah kita pakai Vcloudpoint ini, bisa hemat biaya berapa ya ..???????🤔🤔🤔🤔🤔🤔 #vcloud #vcloudpoints100 #vcloudpoint #vcloudpointindonesia #ayohematenergi #hematlistrik #indonesiahematenergi #komputer (di Prima Digital Solusindo) https://www.instagram.com/p/CEDrym0Bw02/?igshid=vgfjbh0i1rsl
Coming soon: vCloud Director 9.7
Read all about it:
https://blogs.vmware.com/vcloud/2019/03/the-hybrid-cloud-gets-better-meet-vcloud-director-9-7.html