You don't close the indexwriter (or readers or searchers) with the
accessor code. You release them, and the accessor code will close them
when appropriate.
- Mark
Kai Hu wrote:
> Hi,Patrick
> I tested use a map , get a single LuceneIndexAccessor,and get a cached
> IndexWriter ,but after do operation of update,delete,add documents,I should
> close the IndexWriter to release the Lock,it will throw Exceptions" this
> IndexWriter is closed" when other threads execute add,update,delete
> operations.should I synchronized the IndexWriter object? It's better if you
> can send me a demo ,thanks .
>
> kai
>
>
>> Hi Kai
>>
>> We keep a synchronized map of LuceneIndexAccessor instances, one instance per
>> Directory. The map is keyed on the directory path. We then re-use
>> the accessor rather than creating a new one each time.
>>
>> Patrick
>>
>>
> On 06/08/07, Kai Hu <[EMAIL PROTECTED]> wrote:
>
>> Thanks , Patrick,
>>
>> It is useful. But I found a problem that I use
>>
>> "new LuceneIndexAccessor(accessProvider);" when a request comes in B/S,the
>> LuceneIndexAccessor.getWriter() will lose its sense,it will new an
>> IndexWriter.
>>
>> public IndexWriter getWriter() throws IOException {
>>
>> IndexWriter result;
>>
>> synchronized (this) {//here "synchronized" will lose its sense
>>
>> checkClosed();
>>
>> ...
>>
>> if (cachedWriter != null) {
>>
>> log.debug("returning cached writer");
>>
>> result = cachedWriter;
>>
>> writerUseCount++;
>>
>> } else {
>>
>> log.debug("opening new writer and caching it");
>>
>> result = accessProvider.getWriter();// when new a
>> LuceneIndexAccessor Object ,it will new an IndexWriter Object
>>
>> cachedWriter = result;
>>
>> writerUseCount = 1;
>>
>> }
>>
>> }
>>
>> }
>>
>> It will also throw a Exception "cann't obtain the Lock",should I use a
>> single instance of LuceneIndexAccessor? Suppose I use a single instance of
>> LuceneIndexAccessor,how to set a different Directory or Analyzer at one time.
>>
>>
>>
>> kai
>>
>>
>> ///////////////////////////////////////////////////////////
>>
>> ///////////////////////////////////////////////////////////
>>
>>
>>
>>
>>> Hi Kai
>>>
>>> We use the Lucene Index Accessor contribution:
>>>
>>> http://www.nabble.com/Fwd%3A-Contribution%3A-LuceneIndexAccessor-t17416.html#a47049
>>>
>>> Patrick
>>>
>>
>> On 06/08/07, Kai Hu <[EMAIL PROTECTED]> wrote:
>>
>>
>>> Hi,
>>>
>>> How do you solve the problems when add,update,delete documents
>>>
>>> in muti-threads,use synchronized ?
>>>
>>
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>>
>>
>>
>
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