About client

forum_thread

Improvement in replication

Hi, I was thinking about some improvement in replication mechanism. Our application do only few writes (mostly reads), but those writes are important for us - objects rating, profile modifications. So in current implementation when master node dies, there is only a chance to read data from slave and all writes fails. ... So in case when master dies in the middle of transaction, client will get exception and can replay transaction on new master. Old ... the problem is when a transaction succeeds, and on the client commit returns, but the master dies before the update is propagated ...

 
issue

Issue with TYPE expression in Criteria API

Find attached project using latest 2.3.4_03 odb still causes:   ... on this forum thread  except that your test uses client server mode. Both work well (also in client server mode) when serialization is enabled in the configuration (under ...

 
issue

Server crash - Mismatch client-server protocol prefix

We've been having a problem where our ObjectDB server goes unresponsive every 2 days or so.  I've reviewed the server-side logs, and there are no events logged shortly before the crash.  Once the server gets in this state, it is unresponsive to bin/server.sh restart; I have had to reboot the entire server on which it's running.  The only recorded symptom is a client-side error (which fortunately gets auto-mailed to me): ... it's running.  The only recorded symptom is a client-side error (which fortunately gets auto-mailed to me): [ObjectDB 2.5.2] javax.persistence.PersistenceException Mismatch client-server protocol prefix (error 523) at ... by: com.objectdb.o.UserException: Mismatch client-server protocol prefix at com.objectdb.o.MSG.d(MSG.java:61) ...

 
forum_thread

newbie - lots of exeptions

Hi  I'm very new to objectdb . I have bought a server and really want to use it. Our code works well with eclipselink and postgresql - until we stress it which is why I'm trying to get objected to work.   realy wierd things are going on ... we are using hessian to connect our remote clients to glass fish and invoke methods there (fine with postgresql) . here is our log (part of it at least .... exceptions are happening all the time when we're working with objected). ... may be the result of switching an ObjectDB version at the client side and keeping the server running. Try restarting the server with the ...

 
forum_thread

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

I have a simple task to validate the sample code will switch over to the slave database when the master is unavailable. I simulate the master unavailable by stopping the master server; which generates the following exception below. What am I doing wrong? It appears the connection manager fails to try the second URL in the list: objectdb://10.9.2.15:9998//10.9.2.15:9999/test.odb;user=admin;password=password Thank you in advance. ... password = "pwd" / > <client - truststore path = "$objectdb/ssl/client-tstore" password = "pwd" / > < / ...

 
release

2.6.3

... BigDecimal field ( issue #236 ). Fixed a client activation issue when accessing JPA Metamodel before connecting to a ... thread ).  Fixed a TomEE - ObjectDB client-server integration issue ( issue #224 ). Fixed a ...

 
release

2.3.5

... Fixed using type operator and literals in client server queries ( issue #112 ). Fixed eager fetch ... ( issue #85 ). Fixed handling ;drop in client-server connection url. Fixed performance issue ( fetch ...

 
release

2.6.2

... BigDecimal field ( issue #236 ). Fixed a client activation issue when accessing JPA Metamodel before connecting to a ... thread ).  Fixed a TomEE - ObjectDB client-server integration issue ( issue #224 ). Fixed a ...

 
forum_thread

Difficulty with the BIRT plugin

Hi, am trying to get the BIRT plugin to work. Firstly: connecting to an odb server doesn't seem to work (incompatible versions) - but there isn't any way to find out what version the BIRT plugin is using. Next: connecting directly to a file datasource seems to work, in the sense that I can ping the database, however, there doesn't appear to be any way to create a new Data Set from the Data Explorer, as suggested in the online manual: ... Do you see a difference between using embedded mode or client/server mode? I understand that you are trying the tutorial. Does it work with embedded mode? if it fails only in client server mode - please provide more details: The database ...

 
release

2.3.6

... Fixed using type operator and literals in client server queries ( issue #112 ). Fixed eager fetch ... ( issue #85 ). Fixed handling ;drop in client-server connection url. Fixed performance issue ( fetch ...