Right. I can create a patch a bit later, unless someone beats me to it...

On Thu, Feb 13, 2014 at 10:21 AM, Uwe Schindler (JIRA) <[email protected]>wrote:

>
>     [
> https://issues.apache.org/jira/browse/LUCENE-5443?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13900120#comment-13900120]
>
> Uwe Schindler commented on LUCENE-5443:
> ---------------------------------------
>
> bq.  Also, looks like the computation of ramBytesUsed is slightly wrong,
> as it uses Integer.SIZE which is the number of bits in an int, not bytes.
>
> It should use RamUsageEstimator#NUM_BYTES_INT - this constant is 4
>
> > DocValuesProducer#ramBytesUsed throws ConcurrentModificationException
> > ---------------------------------------------------------------------
> >
> >                 Key: LUCENE-5443
> >                 URL: https://issues.apache.org/jira/browse/LUCENE-5443
> >             Project: Lucene - Core
> >          Issue Type: Bug
> >          Components: core/codecs
> >    Affects Versions: 4.6, 4.6.1, 5.0, 4.7
> >            Reporter: Simon Willnauer
> >            Assignee: Simon Willnauer
> >            Priority: Minor
> >             Fix For: 5.0, 4.7
> >
> >
> > this came up in an [elasticsearch issue|
> https://github.com/elasticsearch/elasticsearch/issues/5104] that if you
> pull _#ramBytesUsed()_ while docvalues are loaded in a seperate thread you
> see a _ConcurrentModificationException_ here is an example:
> > {noformat}
> > Caused by: java.util.ConcurrentModificationException
> >         at java.util.HashMap$HashIterator.nextEntry(HashMap.java:926)
> >         at java.util.HashMap$ValueIterator.next(HashMap.java:954)
> >         at
> org.apache.lucene.codecs.lucene45.Lucene45DocValuesProducer.ramBytesUsed(Lucene45DocValuesProducer.java:291)
> >         at
> org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat$FieldsReader.ramBytesUsed(PerFieldDocValuesFormat.java:308)
> >         at
> org.apache.lucene.index.SegmentDocValues.ramBytesUsed(SegmentDocValues.java:103)
> >         at
> org.apache.lucene.index.SegmentReader.ramBytesUsed(SegmentReader.java:555)
> > {noformat}
>
>
>
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