[hibernate-issues] [Hibernate-JIRA] Commented: (HSEARCH-513) Experiencing long delays when indexing entities saved in different transactions
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http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-513?pag...
]
Florin Haizea commented on HSEARCH-513:
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Here are the classes from the sample project:
@Indexed
public class Person implements Serializable {
@DocumentId
private Long id;
@ContainedIn
private Set<ParentOfBirthEvent> parentOfBirthEvents;
@IndexedEmbedded(depth = 4)
private Event birthEvent;
public Person() {
birthEvent = new Event();
birthEvent.getChildren().add(this);
parentOfBirthEvents = new LinkedHashSet<ParentOfBirthEvent>();
}
....getters and setters
}
public class Event implements Serializable {
protected Long id;
@IndexedEmbedded
protected Set<ParentOfBirthEvent> parentsOf;
@ContainedIn
protected Set<Person> children;
public Event() {
parentsOf = new HashSet<ParentOfBirthEvent>();
children = new HashSet<Person>();
}
... getters and setters
}
public class ParentOfBirthEvent implements Serializable {
private Long id;
@IndexedEmbedded
private Person parent;
@ContainedIn
private Event event;
public ParentOfBirthEvent() {}
public ParentOfBirthEvent(Person parent, Event event) {
this();
this.parent = parent;
this.event = event;
event.getParentsOf().add(this);
}
... getters and setters
}
We have 3 @IndexedEmbedded annotations, one of depth=4 (in Person) and two of unspecified
depth (in Event and ParentOfBirthEvent).
Experiencing long delays when indexing entities saved in different
transactions
-------------------------------------------------------------------------------
Key: HSEARCH-513
URL:
http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-513
Project: Hibernate Search
Issue Type: Bug
Components: engine
Affects Versions: 3.2.0.CR1
Environment: Hibernate 3.5.1-Final
Spring 3.0.2
MySQL Connector 5.1.6
Reporter: Florin Haizea
Fix For: 3.3.0.CR1
Attachments: AllLibsExceptSpringAndHibernate.zip, build.xml,
GedcomManagerTests-2010-11-24-shutdown-1.zip, hibernate-search-jms.zip, hibernate3.jar,
HibernateSearchJira.zip, output.txt, output08052010.rtf, SpringAndHibernateLibs.zip
https://forum.hibernate.org/viewtopic.php?f=9&t=1003224
I have 3 entities Person, Event and ParentOfBirthEvent. I save about 8000 Person objects
in batches of 20, each batch is being saved in a different transaction. After a sufficient
number of entities have been persisted (the saving and indexing of initial batches takes
between150ms and 500ms) the indexing of the entities that are saved in some of the
following batches takes a very large amount of time (sometime even minutes for a whole
batch).
The problem is that in order for these delays to appear there has to be a certain
relationship between the objects saved in the current batch and objects saved in previous
batches. The only way in which I can reproduce this 100% is by importing a file (which was
submitted by one of the users of our app), creating entities based on the data in that
file and saving the entities in batches of 20. When I reach batch number 273 or so the
indexing starts taking a lot of time.
If I removed the @IndexedEmbedded annotation from the "parent" field in the
ParentOfBirthEvent class the problem is solved. Also, if I removed all the hibernate
search listeners from the sessionFactory the problem is solved.
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