Ben Armstrong wrote:
I am trying to get Solr 1.4.0 to work on OpenVMS V8.3 Alpha with Java
1.5.0-6.p1.
...
If Lucene would consider the segment number to end at a final period
instead of scanning to the end of the string, then I could get past
this error.
I looked at the other possible JAVA$FILENAME_CONTROLS and none of them
address this particular issue. The "multi-dot-in-file" controls have
to do with which side of the filename any additional dots end up in.
On a VMS filesystem, whether it is ODS-2 or ODS-5, at least one dot
separating the filename and the extension is mandatory. If there are
additional dots in the filename, they need to be either mangled (as in
the case of ODS-2, usually by replacing them with underscores) or else
they need to be quoted as "^." (as in the case of ODS-5). I believe
the "Support multi dot in file, keeping last" and "keeping first"
controls just govern where the mandatory (unquoted, unmangled) dot
goes. And in any event, these only affect multi-dot filenames, e.g.
"extra.dot.dat", not extensionless files, e.g. "segment_1.", so for
Lucene to work on VMS, it needs to accommodate for this
filesystem-specific oddity.
This morning, I discussed with rjent and ThetaPh1 on #lucene @
irc.freenode.net about this problem and they made some helpful
suggestions. Here is a summary of what they told me:
Is there no way to switch off the mandatory period in VMS? [No.]
Lucene should not change for this bogus behaviour.
Can you use another platform? [No, not easily.]
Get your jvm vendor to support filename mangling properly. [OK, I will
ask HP, but this will take time.]
In the meantime, try a VMSFSdirectory wrapper that extends
SimpleFSDirectory and rewrite all methods using filenames and pass
through a rewrite method.
Maybe there is some open source filename mangler/demangler already? [I
will look.]
If all else fails, there may be contrib/db stores in berkeley db that
might work if you don't want to write code.
So, I would like to thank #lucene again for their helpful suggestions.
I will ask both HP and the OpenVMS support community for further
assistance based on this advice.
Ben
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