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12

Occasionally slow requests in load testing

we can see that most of the requests get stuck in one of 2 places: com.objectdb.o.PGC:w: line number 232 com.objectdb.o.LFL:U: line number 1068 Please see the attached callgraph examples for full stack ... stack trace (com.objectdb.o.LFL:U: line number 1068) indicates massive access to the database file
2

setFirstResult(startPosition)

Method javax.persistence.TypedQuery TypedQuery<X> setFirstResult( int startPosition ) Set the position of the first result to retrieve. Parameters: startPosition - position of the first result, numbered from 0 Returns: the same query instance Throws: IllegalArgumentException - if the argument is negative Since: JPA 2.0
2

le(x, y)

Method javax.persistence.criteria.CriteriaBuilder Predicate le( Expression<?> x, Number y ) Create a predicate for testing whether the first argument is less than or equal to the second. Parameters: x - expression y - value Returns: less-than-or-equal predicate Since: JPA 2.0
2

javax.persistence.PessimisticLockException

number of frames from the bottom of the stack trace of the exception that was caused by
0

FetchPlan.fetchSize

Annotation Element javax.jdo.annotations.FetchPlan int fetchSize The number of instances of multi-valued fields retrieved by queries. Returns: the fetch size Default value: 0 Since: JDO 2.1
0

javax.jdo.JDODetachedFieldAccessException

number of frames from the bottom of the stack trace of the exception that was caused by this exception
0

javax.jdo.JDOFatalInternalException

for this exception matches the indicated number of frames from the bottom of the stack trace
0

javax.jdo.FetchPlan

in that number of references from the initial object to be fetched. Parameters: fetchDepth - the depth Returns: the FetchPlan Since: JDO 2.0
0

javax.jdo.Constants

See Also: PersistenceManagerFactory.getProperties() String NONCONFIGURABLE_PROPERTY_VERSION_NUMBER
0

newObjectIdInstance(pcClass, obj)

, the behavior must be as specified: Number or Character: the parameter must be the single field type or

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