After further investigation, I figured there are two types of clients: thin client and thick client.
- thin client talks to PQS, only ELB or PQS http address is supported - thick client supports ZK I don't know the PQS heath url yet, not documented anywhere. Any one knows? On Wed, Aug 7, 2019, 12:06 PM Aleksandr Saraseka <asaras...@eztexting.com> wrote: > I didn't try this personally, but according to the documentation > https://phoenix.apache.org/server.html it has possibility to have > ZK-based load-balancing. Please refer to the "Load balancing" section at > the bottom. > > On Wed, Aug 7, 2019 at 9:14 PM jesse <chat2je...@gmail.com> wrote: > >> Thank you all, very helpful information. >> >> 1) for server side ELB, what is the PQS health check url path? >> >> 2) Does Phoenix client library support client-side load-balancing? i. e >> client gets list of PQS addresses from ZK, and performs load balancing. >> Thus ELB won't be needed. >> >> >> >> On Wed, Aug 7, 2019, 9:01 AM Josh Elser <els...@apache.org> wrote: >> >>> Great answer, Aleksandr! >>> >>> Also worth mentioning there is only ever one active HBase Master at a >>> time. If you have multiple started, one will be active as the master and >>> the rest will be waiting as a standby in case the current active master >>> dies for some reason (expectedly or unexpectedly). >>> >>> On 8/7/19 9:55 AM, Aleksandr Saraseka wrote: >>> > Hello. >>> > - Phoenix libs should be installed only on RegionServers. >>> > - QueryServer - it's up to you, PQS can be installed anywhere you want >>> > - No. QueryServer is using ZK quorum to get everything it needs >>> > - If you need to balance traffic with multiply PQSs - then yes, but >>> > again - it's up to you. It is not required multiply PQSs if you have >>> > multiply HBase masters. >>> > >>> > On Wed, Aug 7, 2019 at 12:58 AM jesse <chat2je...@gmail.com >>> > <mailto:chat2je...@gmail.com>> wrote: >>> > >>> > Our cluster used to have one hbase master, now a secondary is >>> added. >>> > For phonenix, what changes should we make? >>> > - do we have to install new hbase libraries on the new hbase >>> > master node? >>> > - do we need to install new query server on the hbase master? >>> > - any configuration changes should we make? >>> > - do we need an ELB for the query server? >>> > >>> > Thanks >>> > >>> > >>> > >>> > >>> > >>> > -- >>> > Aleksandr Saraseka >>> > DBA >>> > 380997600401 >>> > <tel:380997600401> *•* asaras...@eztexting.com >>> > <mailto:asaras...@eztexting.com> *•* eztexting.com >>> > < >>> http://eztexting.com?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > >>> > >>> > < >>> http://facebook.com/eztexting?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > < >>> http://linkedin.com/company/eztexting/?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > < >>> http://twitter.com/eztexting?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > < >>> https://www.youtube.com/eztexting?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > < >>> https://www.instagram.com/ez_texting/?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > < >>> https://www.facebook.com/alex.saraseka?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >>> >>> > < >>> https://www.linkedin.com/in/alexander-saraseka-32616076/?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature >>> > >>> > >>> >> > > -- > Aleksandr Saraseka > DBA > 380997600401 > *•* asaras...@eztexting.com *•* eztexting.com > <http://eztexting.com?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > > <http://facebook.com/eztexting?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > <http://linkedin.com/company/eztexting/?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > <http://twitter.com/eztexting?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > <https://www.youtube.com/eztexting?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > <https://www.instagram.com/ez_texting/?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > <https://www.facebook.com/alex.saraseka?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> > <https://www.linkedin.com/in/alexander-saraseka-32616076/?utm_source=WiseStamp&utm_medium=email&utm_term=&utm_content=&utm_campaign=signature> >
