Hibernate: OutOfMemoryError persisting Blob when printing log message
- by paul
I have a Hibernate Entity:
@Entity
class Foo {
//...
@Lob
public byte[] getBytes() { return bytes; }
//....
}
My VM is configured with a maximum heap size of 512 MB. When I try to persist an object which has a 75 MB large object, I get an OutOfMemoryError.
The names of the methods in the stack trace (StringBuilder, ByteArrayBlobType.toLoggableString, pretty.Printer.toString) suggest that hibernate is trying to write a very large log message that contains my object.
Am I correct about why hibernate is using so much memory? What is the simplest way to work around this problem?
java.lang.OutOfMemoryError: Java heap space
at java.lang.AbstractStringBuilder.<init>(AbstractStringBuilder.java:44)
at java.lang.StringBuilder.<init>(StringBuilder.java:81)
at org.hibernate.type.ByteArrayBlobType.toString(ByteArrayBlobType.java:117)
at org.hibernate.type.ByteArrayBlobType.toLoggableString(ByteArrayBlobType.java:127)
at org.hibernate.pretty.Printer.toString(Printer.java:53)
at org.hibernate.pretty.Printer.toString(Printer.java:90)
at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:97)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.jboss.seam.persistence.HibernateSessionProxy.flush(HibernateSessionProxy.java:181)
