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500Mb ObjectDb database opening issue

500Mb ObjectDb database opening issue

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

size="50" user="true" password="true" />                 <log path="$objectdb/log/" max="8mb" stdout ... " sync="true" path="." max="128mb" />                 <recording enabled="true" sync="true" path ... ="64mb" max-threads="10" />                 <query-cache results="32mb" programs="500

Replication issue, Replayer failing due to NullPointerException.

" /> <url-history size="50" user="true" password="true" /> <log path="/var/log/test/" max="10mb ... " /> <recovery enabled="true" sync="false" path="." max="512mb" /> <recording enabled="true ... " max-threads="10" synchronized="false" /> <query-cache results="32mb" programs="500

OutofMemory error with Object DB 2.0

The application works fine with only 256MB heap size with objectdb 1.0 But on 2.0 even with max heap size ... " password="true" /> <log path="c:/temp/odb/log/" max="8mb" stdout="false" stderr="false" /> <log ... " sync="false" path="." max="128mb" /> <recording enabled="false" sync="false" path="." mode

com.objectdb.o.NLV cannot be cast to com.objectdb.o.RSV

-363f-4397-8553-cc5688ba142d') ORDER BY MAX($1.createDate) DESC but this query returns an exception ... ChatHistoryItem $1 JOIN $1.recipient $2 WHERE ($2.id='22afeafe-363f-4397-8553-cc5688ba142d') ORDER BY MAX ... -cc5688ba142d')))" eval="12.7207" order="desc(max(any(any($1.createDate))))"> <multiVarPlan plan="$1

Activation license not picked up in Jenkins

.MrProrationSpec STARTED mr.controllers.spec.MrProrationSpec > max_rate_target_below_first STARTED mr.controllers.spec.MrProrationSpec > max_rate_target_below_first STANDARD_ERROR [2020-09-03 22:03 ... .MrProrationSpec > max_rate_target_below_first STANDARD_OUT created site mr.controllers.spec

Performance tuning, best practices

processor cores. What is strange for us is that max 20% of the cpu resources are used and the IO subsystem ... ="$objectdb/log/" max="8mb" stdout="false" stderr="false" /> <log-archive path="$objectdb/log/archive ... ="256kb" page="2kb" /> <recovery enabled="true" sync="false" path="." max="128mb" /> <recording enabled

Queries are slow on a large database

example, I want to get the object with the highest Id. I tried a query like "count(this.Id)" or "max ... to get MAX/MIN values: SELECT MAX(m.id) FROM MessageImpl m or in JDOQL (with a single query string): SELECT MAX(id) FROM MessageImpl If the field is indexed these queries also should be executed very fast

each 1-2 days objects on some objectdb level lock/block each other

.conf is (we tried max-threads with 24, 40, 80, more or less the same result with any ... ="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout="false" stderr="false ... ="2kb" /> <recovery enabled="true" sync="false" path="." max="96mb" /> <recording

database corrupt

" /> <url-history size="50" user="true" password="true" /> <log path="$objectdb/log/" max="8mb" stdout ... enabled="true" sync="false" path="." max="96mb" /> <recording enabled="false" sync="false" path="." mode="write" /> <locking version-check="true" /> <processing cache="4096mb" max-threads="24

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Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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