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Date: Thu, 2 Jul 2009 09:06:52 +0200
Message-ID: <f18c9dde0907020006l2ca3d657ve33f1c0f75f95c31@mail.gmail.com>
Subject: Re: IndexWriter
From: Simon Willnauer <simon.willnauer@googlemail.com>
To: java-user@lucene.apache.org
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Ganesh is right you should check once you webapp is starting up if you
keep the writer open as long as you app is up and running. I just
mentioned it to make you aware of it and prevent some surprises if the
app crashes.

simon

On Thu, Jul 2, 2009 at 9:03 AM, Ganesh<emailgane@yahoo.co.in> wrote:
> No. You should not do this for every document you add or update.
>
> First time, When you open your writer, if the directory is locked, it wil=
l throw LockObtainFailedException, In this case, Unlock it and Open the wri=
ter again.
>
> Regards
> Ganesh
>
> ----- Original Message -----
> From: "Amin Mohammed-Coleman" <aminmc@gmail.com>
> To: <java-user@lucene.apache.org>; <simon.willnauer@gmail.com>
> Sent: Wednesday, July 01, 2009 5:39 PM
> Subject: Re: IndexWriter
>
>
>> Hi all
>>
>> Thanks for your response. =C2=A0I guess when I add or update using the
>> indexwriter I need to do the following:
>>
>> }finally {
>> =C2=A0 if (IndexReader.isLocked(directory)) {
>> =C2=A0 =C2=A0 IndexReader.unlock(directory);
>> =C2=A0 }
>> }
>>
>>
>> Cheers
>> Amin
>>
>>
>>
>> On Wed, Jul 1, 2009 at 11:47 AM, Simon Willnauer <
>> simon.willnauer@googlemail.com> wrote:
>>
>>> You might want to take care of the write.lock file in the index
>>> directory if your application breaks down. If you do not close the
>>> writer and restart you app you might get an LockObtainFailedException.
>>>
>>> simon
>>>
>>> On Wed, Jul 1, 2009 at 12:39 PM, Ganesh<emailgane@yahoo.co.in> wrote:
>>> > Yes. Single IndexWriter could be maintained in a App and it could be
>>> closed when the App is shutdown.
>>> >
>>> > Regards
>>> > Ganesh
>>> >
>>> > ----- Original Message -----
>>> > From: "Amin Mohammed-Coleman" <aminmc@gmail.com>
>>> > To: <java-user@lucene.apache.org>
>>> > Sent: Wednesday, July 01, 2009 1:27 PM
>>> > Subject: IndexWriter
>>> >
>>> >
>>> >> Hi
>>> >>
>>> >> This question has probably been asked before so apologies for asking=
 it
>>> >> again. =C2=A0Just to confirm that it is ok to use a single index wri=
ter in a
>>> web
>>> >> application and only close that single instance on application shutd=
own?
>>> =C2=A0As
>>> >> the indexwriter is thread safe there is no need for any external
>>> >> synchronisation. =C2=A0Am I correct in thinking this?
>>> >>
>>> >> I have configured via spring a single index writer which is used in =
the
>>> >> application and I use the same one for adding and updating documents=
.
>>> =C2=A0This
>>> >> index writer is closed when the spring application context shutsdown=
.
>>> >>
>>> >>
>>> >> Cheers
>>> >> Amin
>>> >>
>>> > Send instant messages to your online friends
>>> http://in.messenger.yahoo.com
>>> >
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>>> >
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>>
> Send instant messages to your online friends http://in.messenger.yahoo.co=
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