incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Richard Grossman <richie...@gmail.com>
Subject Re: MultiThread Client problem with thrift
Date Tue, 22 Dec 2009 12:42:48 GMT
Yes of course but do you have updated to cassandra 0.5.0-beta2 ?

On Tue, Dec 22, 2009 at 2:30 PM, Ran Tavory <rantav@gmail.com> wrote:

> Would connection pooling work for you?
> This Java client http://code.google.com/p/cassandra-java-client/ has
> connection pooling.
> I haven't put the client under stress yet so I can't testify, but this may
> be a good solution for you
>
>
> On Tue, Dec 22, 2009 at 2:22 PM, Richard Grossman <richiesgr@gmail.com>wrote:
>
>> I agree it's solve my problem but can give a bigger one.
>> The problem is I can't succeed to prevent opening a lot of connection
>>
>>
>> On Tue, Dec 22, 2009 at 1:51 PM, Jaakko <rosvopaallikko@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I don't know the particulars of java implementation, but if it works
>>> the same way as Unix native socket API, then I would not recommend
>>> setting linger to zero.
>>>
>>> SO_LINGER option with zero value will cause TCP connection to be
>>> aborted immediately as soon as the socket is closed. That is, (1)
>>> remaining data in the send buffer will be discarded, (2) no proper
>>> disconnect handshake and (3) receiving end will get TCP reset.
>>>
>>> Sure this will avoid TIME_WAIT state, but TIME_WAIT is our friend and
>>> is there to avoid packets from old connection being delivered to new
>>> incarnation of the connection. Instead of avoiding the state, the
>>> application should be changed so that TIME_WAIT will not be a problem.
>>> How many open files you can see when the exception happens? Might be
>>> that you're out of file descriptors.
>>>
>>> -Jaakko
>>>
>>>
>>> On Tue, Dec 22, 2009 at 8:17 PM, Richard Grossman <richiesgr@gmail.com>
>>> wrote:
>>> > Hi
>>> > To all is interesting I've found a solution seems not recommended but
>>> > working.
>>> > When opening a Socket set this:
>>> >    tSocket.getSocket().setReuseAddress(true);
>>> >    tSocket.getSocket().setSoLinger(true, 0);
>>> > it's prevent to have a lot of connection TIME_WAIT state but not
>>> > recommended.
>>> >
>>>
>>
>>
>

Mime
View raw message