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Comment: Adding page describing known Sun Java bugs that affect Lucene
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|| (No sun bug yet) || Discussed [http://www.nabble.com/readModifiedUTF8String-stuck-td23089805.html here] and [http://www.nabble.com/Lucene-2.2.0-in-64-bit-JVM%3A-IndexReader-is-hung-td22667471.html here] || On 64 bit JREs, reading from files may hang (??) || (Still characterizing) || None known ||

Sun Java Bugs

Sometimes Lucene runs amok of bugs in Sun's Java implementation. In certain cases we whittle it down to a small test case, open an issue with Sun, and hopefully Sun fixes it. In other cases we know the bug is in the JRE but we haven't narrowed it enough to open a bug with Sun. Sometimes we can work out a simple workaround in Lucene.

We try to open a Lucene mirror bug to provide details on how Lucene is affected, iterate on a compact test case for Sun, etc.

If you are affected by one of these issues that Sun has yet to accept or resolve, or simply have some spare votes, please consider adding your vote to the bug (on Sun's bug page):

Sun bug

Lucene mirror bug

Impact to Lucene

State, Priority

Workaround

[http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6265734 6265734]

[http://issues.apache.org/jira/browse/LUCENE-753?focusedCommentId=12550168&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#action_12550168 LUCENE-573]

NIOFSDirectory has very poor performance on Windows

Accepted, Low

Use FSDirectory or MMapDirectory on Windows

[http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6478546 6478546]

[https://issues.apache.org/jira/browse/LUCENE-1566 LUCENE-1566]

You hit a false OutOfMemoryException when loading norms in an index with many docs

Accepted, Low

Locally patch Lucene to load large contiguous byte sequences in chunks

[http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6707044 6707044]

[https://issues.apache.org/jira/browse/LUCENE-1282 LUCENE-1282]

Index corruption

Fixed as of 1.6.0_10, High

Lucene code base has a workaround in it

(No sun bug yet)

[https://issues.apache.org/jira/browse/LUCENE-1342 LUCENE-1342]

SEGV during indexing, with Java 1.6 64 bit

(No compact test case yet)

None known

(No sun bug yet)

Discussed [http://www.nabble.com/readModifiedUTF8String-stuck-td23089805.html here] and [http://www.nabble.com/Lucene-2.2.0-in-64-bit-JVM%3A-IndexReader-is-hung-td22667471.html here]

On 64 bit JREs, reading from files may hang (??)

(Still characterizing)

None known

JavaBugs (last edited 2015-01-09 11:45:24 by 96)