Ah, OK. I didn't realize that data needed to be persisted to disk in order to have a distributed cluster (is that a Hazelcast requirement?). I'm also glad to hear that this is on the road map--I can see numerous use-cases for a reliable (i.e. HA clustered) in-memory database. --Eric
On Friday, July 31, 2015 at 4:09:21 AM UTC-5, Luigi Dell'Aquila wrote: > > Well, actually memory storage structure is exactly the same as the > persistent one, the only difference is that it does not flush data to disk. > Some of our customers use OrientDB in-memory only, also on production > instances. > You just have to keep in mind that this has some limitations; the biggest > one is that you cannot have a distributed cluster of all in-memory > instances, just because node replica is based on backup procedure, that is > executed on physical files (so it cannot be executed on in-memory db). So > if you want to try a distributed configuration, at least one node has to be > a persistent one. This limitation will be removed in next releases. > > Thanks > > Luigi > > > 2015-07-30 18:59 GMT+02:00 Eric24 <[email protected] <javascript:>>: > >> "Memory storage is for testing." Really? What if I don't want anything to >> persist? I would have assumed that memory storage in a cluster would be a >> good alternative (and fast) for something like what you might use memcached >> (or a variant) for? >> --Eric >> >> >> On Wednesday, July 29, 2015 at 8:30:15 AM UTC-5, Riccardo Tasso wrote: >>> >>> Memory storage is for testing. >>> If you want all your database in RAM use a plocal storage with HUGE >>> cache size. >>> >>> Cheers, >>> Riccardo >>> >>> 2015-07-29 15:16 GMT+02:00 Arpit Jain <[email protected]>: >>> >>>> Hello Members, >>>> >>>> I have to perform a load test of orientDB write operation in memory >>>> storage distributed mode. >>>> i have started a cluster with 3 node. >>>> when i used ./console.sh, it just shows my plocal databases >>>> >>>> orientdb {server=remote:localhost/}> >>>> list databases >>>> >>>> Found 2 databases: >>>> >>>> GratefulDeadConcerts (plocal) >>>> julyRecord (plocal) >>>> >>>> so my doubt is how to connect with my memory database and how to >>>> monitor it in distribute mode? >>>> >>>> Regards: >>>> Arpit >>>> >>>> -- >>>> >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "OrientDB" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >> >> --- >> You received this message because you are subscribed to the Google Groups >> "OrientDB" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- --- You received this message because you are subscribed to the Google Groups "OrientDB" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
