[infinispan-issues] [JBoss JIRA] (ISPN-2189) Compact buffers of ExpandableMarshalledValueByteStream to save memory on long term storage

Compact buffers of ExpandableMarshalledValueByteStream to save memory on long term storage ------------------------------------------------------------------------------------------ Key: ISPN-2189 URL: https://issues.jboss.org/browse/ISPN-2189 Project: Infinispan Issue Type: Enhancement Affects Versions: 5.1.5.FINAL Reporter: Sanne Grinovero Assignee: Manik Surtani Fix For: 5.2.0.Alpha4 Buffers allocated by org.infinispan.io.ExpandableMarshalledValueByteStream grow by approximation, but in {code}org.infinispan.marshall.MarshalledValue.serialize0(){code} we know when the buffer won't grow any longer as it's going to be treated as effectively immutable. At this point we should shrink the buffer to potentially save memory on each entry in the datagrid. This likely needs to be optional as depending on configuration the buffer might be used for a temporary operation, in which case the effort of resizing should be avoided.