Joshi, yes, do report back on how things go! Cheers,
/peter neubauer GTalk: neubauer.peter Skype peter.neubauer Phone +46 704 106975 LinkedIn http://www.linkedin.com/in/neubauer Twitter http://twitter.com/peterneubauer http://www.neo4j.org - Your high performance graph database. http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. On Thu, Jan 20, 2011 at 6:50 PM, Joshi Hemant - hjoshi <[email protected]> wrote: > Thanks Peter. I will upgrade to 1.2 and update the neo4j properties file. > Since the graph was created with 0.8 snapshot, I hope it will be compatible > with 1.2 release. > -Hemant > ________________________________________ > From: [email protected] [[email protected]] on behalf > of Peter Neubauer [[email protected]] > Sent: Thursday, January 20, 2011 10:45 AM > To: Neo4j user discussions > Subject: Re: [Neo4j] Neo4j REST server in readonly mode > > Joshi, > the 0.8 REST server is not longer acive and merged into the Neo4j > Server, so we are talking about the neo4j.properties in the conf/ > directory of the server download. > > Setting the server into readonly mode will not block the other process > accessing the files, since they will not be locked by the Server > incstance. )I have not tested this though), So your scenario should > work with the Neo4j 1.2. download and some neo4j.properties tweaks. > > HTH! > > Cheers, > > /peter neubauer > > GTalk: neubauer.peter > Skype peter.neubauer > Phone +46 704 106975 > LinkedIn http://www.linkedin.com/in/neubauer > Twitter http://twitter.com/peterneubauer > > http://www.neo4j.org - Your high performance graph database. > http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. > > > > On Thu, Jan 20, 2011 at 5:36 PM, Joshi Hemant - hjoshi > <[email protected]> wrote: >> Thanks for the replies. I am not sure I understand the 2 options you have >> listed Peter. Let me just write about the no-JMX option first. Where do you >> suggest I change the neo4j.properties file? I suppose you mean the neo4j >> database directory. But then the neo4j database would be read-only for both >> the separate java process and REST server. Am I right? The other possibility >> is the neo4j-rest-standalone-0.8-SNAPSHOT/conf folder which has wrapper.conf >> file. >> >> As it stands now, if I start the REST server (out of the box), I can write >> my standalone programs to use EmbeddedReadOnlyGraphDatabase and that works >> just fine. I am trying to reverse the roles here so that REST is read-only >> and the standalone program could use the EmbeddedGraphDatabase. >> >> -Hemant >> >> -----Original Message----- >> From: [email protected] [mailto:[email protected]] On >> Behalf Of Peter Neubauer >> Sent: Thursday, January 20, 2011 4:00 AM >> To: Neo4j user discussions >> Subject: Re: [Neo4j] Neo4j REST server in readonly mode >> >> Actually, >> this is not quite true. If you really want it, you can start the >> server readonly and disabling caches in order to to get stale data by >> setting it in neo4j.properties as >> >> read_only = true >> cache_type = none >> >> see http://docs.neo4j.org/chunked/snapshot/operations-monitoring.html#_jmx >> (just added the clear() to the docs, will come up in some minutes >> through the build process) >> >> This will, however, result in exceptions being thrown in the mutating >> operations on REST level. >> >> Another way to trigger a readonly mode updating the cache is to use >> JMX. There is a cache.clear() method that you can trigger, making the >> REST readonly instance eventually consistent (refreshing) at intervals >> you decide. >> >> Code is something along the lines of >> >> Neo4jManager manager = new Neo4jManager( graphDb.getManagementBean( >> Kernel.class ) ); >> long nodeIDsInUse = manager.getCacheBean().clear(); >> >> And of course you can call that via JMX remotely from your inserting system. >> >> Would that be something of use? >> >> Cheers, >> >> /peter neubauer >> >> GTalk: neubauer.peter >> Skype peter.neubauer >> Phone +46 704 106975 >> LinkedIn http://www.linkedin.com/in/neubauer >> Twitter http://twitter.com/peterneubauer >> >> http://www.neo4j.org - Your high performance graph database. >> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. >> >> >> >> On Wed, Jan 19, 2011 at 10:11 PM, Jim Webber <[email protected]> wrote: >>> Hi Hemant, >>> >>> Bringing up the REST API in readonly mode is not possible I'm afraid. >>> >>> We could consider adding it to the Neo4j server, depending on the effort >>> required and whether there are other workarounds. >>> >>> Jim >>> _______________________________________________ >>> Neo4j mailing list >>> [email protected] >>> https://lists.neo4j.org/mailman/listinfo/user >>> >> _______________________________________________ >> Neo4j mailing list >> [email protected] >> https://lists.neo4j.org/mailman/listinfo/user >> *************************************************************************** >> The information contained in this communication is confidential, is >> intended only for the use of the recipient named above, and may be legally >> privileged. >> >> If the reader of this message is not the intended recipient, you are >> hereby notified that any dissemination, distribution or copying of this >> communication is strictly prohibited. >> >> If you have received this communication in error, please resend this >> communication to the sender and delete the original message or any copy >> of it from your computer system. >> >> Thank You. >> **************************************************************************** >> >> _______________________________________________ >> Neo4j mailing list >> [email protected] >> https://lists.neo4j.org/mailman/listinfo/user >> > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ > Neo4j mailing list > [email protected] > https://lists.neo4j.org/mailman/listinfo/user > _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
