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From Tyler Hobbs <ty...@riptano.com>
Subject Re: Problem in using PHPcassa: Uncaught exception 'Exception' with message 'Could not connect to a cassandra server'
Date Mon, 20 Dec 2010 19:50:32 GMT
Yes, Nick's suggestion is good.  I've added a logging statement at that
point in the latest commit to phpcassa.  Perhaps you could try that and see
what the error is?

- Tyler

On Mon, Dec 20, 2010 at 12:35 PM, Nick Bailey <nick@riptano.com> wrote:

> So it looks like phpcassa doesn't log any errors. The error you are seeing
> is because the connection to the first server failed and there are no more
> servers to try. It doesn't say why it failed though. The only thing i can
> reccommend is on line 57 of connection.php to add a line to print out the
> exception it catches there to see what the problem is. Or just throw the
> exception again so the script dies there.
>
> On Mon, Dec 20, 2010 at 11:38 AM, Rajkumar Gupta <rajkumar.w93@gmail.com>wrote:
>
>> Nick,
>>
>> Sorry I can not currently access my computer on which cassandra is
>> installed but yes, earlier I used the 'show keyspaces;' command & it
>> correctly showed me the keyspace1 with corresponding column families.
>> Yes I was using Cassandra 0.6.8 earlier and now I have switched to
>> 0.7. Since I was using thobbs phpcassa which infact worked with 0.7
>> version but I came to know lately. I have tried on ubuntu as well but
>> I am not very proficient in ubuntu therefore I quit there and decided
>> to get it running on windows only.
>>
>> So right now, I am using Cassandra 0.7.0 on windows. I am trying to
>> use thobbs's PHPcassa with it but when I try this:
>>
>> <?php
>> require_once('Z:/wamp/bin/php/'.'phpcassa/connection.php');
>> require_once('Z:/wamp/bin/php/'.'phpcassa/columnfamily.php');
>>
>>   $servers[0]['host'] = 'localhost';
>>   $servers[0]['port'] = '9160';
>>   $conn = new Connection('Keyspace1', $servers);
>>
>> $column_family = new ColumnFamily($conn, 'Standard1');
>> ?>
>>
>>
>> Fatal error: Uncaught exception 'NoServerAvailable' in
>> Z:\wamp\bin\php\phpcassa\connection.php:153
>> Stack trace: #0 Z:\wamp\bin\php\phpcassa\connection.php(53):
>> ServerSet->get() #1 Z:\wamp\bin\php\phpcassa\connection.php(64):
>> Connection->connect() #2
>> Z:\wamp\bin\php\phpcassa\columnfamily.php(171): Connection->connect()
>> #3 Z:\wamp\www\PhpProject\index.php(10):
>> ColumnFamily->__construct(Object(Connection), 'Standard1') #4 {main}
>> thrown in Z:\wamp\bin\php\phpcassa\connection.php on line 153
>>
>> Thanks so much Nick ..
>>
>>
>> On Mon, Dec 20, 2010 at 10:47 PM, Nick Bailey <nick@riptano.com> wrote:
>> > Just to verify the keyspace exists can you run 'use Keyspace1;' in the
>> cli?
>> > Also it looks like you were using 0.6.8 and now you are using 0.7.0?
>> What is
>> > the exact error you are seeing now?
>> >
>> > On Mon, Dec 20, 2010 at 10:21 AM, Rajkumar Gupta <
>> rajkumar.w93@gmail.com>
>> > wrote:
>> >>
>> >> Keyspace1 is included by default in the cassandra.yaml file and I
>> >> imported the schema before running the php script
>> >> so I hope that is not the problem..
>> >>
>> >> I am now too much frustrated with this problem..:(  and this is just
>> >> the beginning of my Cassandra experiments
>> >>
>> >>
>> >>
>> >>
>> >> On Mon, Dec 20, 2010 at 8:36 PM, Nick Bailey <nick@riptano.com> wrote:
>> >> > Have you created Keyspace1? Looks like phpcassa requires you to set
a
>> >> > keyspace when you connect but the cli would not. Which might explain
>> why
>> >> > you
>> >> > are seeing problems.
>> >> >
>> >> > On Mon, Dec 20, 2010 at 5:42 AM, Rajkumar Gupta <
>> rajkumar.w93@gmail.com>
>> >> > wrote:
>> >> >>
>> >> >> I am using the following code to connect to Cassandra 0.7.0 using
>> >> >> PHPcassa (thobbs)
>> >> >>
>> >> >> <?php
>> >> >> require_once('Z:/wamp/bin/php/'.'phpcassa/connection.php');
>> >> >> require_once('Z:/wamp/bin/php/'.'phpcassa/columnfamily.php');
>> >> >>
>> >> >>    $servers[0]['host'] = 'localhost';
>> >> >>    $servers[0]['port'] = '9160';
>> >> >>    $conn = new Connection('Keyspace1', $servers);
>> >> >>
>> >> >> $column_family = new ColumnFamily($conn, 'Standard1');
>> >> >> ?>
>> >> >>
>> >> >> However I am able to connect to cassandra instance through
>> >> >> cassandra-cli at command prompt but not through this php script.
>> >> >>
>> >> >>
>> >> >>
>> >> >>
>> >> >>
>> >> >> On Mon, Dec 20, 2010 at 11:10 AM, Nick Bailey <nick@riptano.com>
>> wrote:
>> >> >> > It would probably help if you posted the code you are trying
to
>> use
>> >> >> > from
>> >> >> > your php script. I don't know much about the php client but
I now
>> >> >> > someone on
>> >> >> > this list does.
>> >> >> >
>> >> >> > On Sun, Dec 19, 2010 at 10:55 PM, Rajkumar Gupta
>> >> >> > <rajkumar.w93@gmail.com>
>> >> >> > wrote:
>> >> >> >>
>> >> >> >> I am able to connect to cassandra through cassandra-cli
command
>> at
>> >> >> >> command prompt but not through my php script. I also checked
>> after
>> >> >> >> changing the rpc address to 0.0.0.0 in cassandra.yaml
file but it
>> >> >> >> still does not work!
>> >> >> >>
>> >> >> >>
>> >> >> >> On Mon, Dec 20, 2010 at 1:47 AM, Aaron Morton
>> >> >> >> <aaron@thelastpickle.com>
>> >> >> >> wrote:
>> >> >> >> > Forgot to say, 0.0.0.0 is not a good idea in production...
>> >> >> >> > http://wiki.apache.org/cassandra/FAQ#cant_listen_on_ip_any
>> >> >> >> >
>> >> >> >> >
>> >> >> >> > On 20/12/2010, at 9:12 AM, Aaron Morton <
>> aaron@thelastpickle.com>
>> >> >> >> > wrote:
>> >> >> >> >
>> >> >> >> >> I've not used the PHP client, but you can test
connectivity to
>> >> >> >> >> your
>> >> >> >> >> cluster using the cassandra-cli command line
client in the
>> bin/
>> >> >> >> >> folder.
>> >> >> >> >>
>> >> >> >> >> Also check the ThriftAddress setting in your
storage-config,
>> this
>> >> >> >> >> address is the one that the server will be listening
on. Set
>> it
>> >> >> >> >> to
>> >> >> >> >> 0.0.0.0
>> >> >> >> >> to listen on all.
>> >> >> >> >>
>> >> >> >> >> Aaron
>> >> >> >> >>
>> >> >> >> >> On 19/12/2010, at 8:45 AM, Rajkumar Gupta
>> >> >> >> >> <rajkumar.w93@gmail.com>
>> >> >> >> >> wrote:
>> >> >> >> >>
>> >> >> >> >>> Hi, I am trying to use phpcassa(Hoan's) with
Cassandra 0.6.8
>> but
>> >> >> >> >>> when
>> >> >> >> >>> I try to run the following php script that
includes phpcassa,
>> >> >> >> >>>
>> >> >> >> >>>
>> >> >> >> >>> <?php
>> >> >> >> >>>       $GLOBALS['THRIFT_ROOT'] =
>> >> >> >> >>> 'Z:/wamp/bin/php/include/thrift/';
>> >> >> >> >>> require_once
>> >> >> >> >>> $GLOBALS['THRIFT_ROOT'].'/packages/cassandra/Cassandra.php';
>> >> >> >> >>> require_once
>> $GLOBALS['THRIFT_ROOT'].'/transport/TSocket.php';
>> >> >> >> >>> require_once
>> >> >> >> >>> $GLOBALS['THRIFT_ROOT'].'/protocol/TBinaryProtocol.php';
>> >> >> >> >>> require_once
>> >> >> >> >>> $GLOBALS['THRIFT_ROOT'].'/transport/TFramedTransport.php';
>> >> >> >> >>> require_once
>> >> >> >> >>> $GLOBALS['THRIFT_ROOT'].'/transport/TBufferedTransport.php';
>> >> >> >> >>>
>> >> >> >> >>> include_once('Z:/wamp/bin/php/include/phpcassa.php');
>> >> >> >> >>> include_once('Z:/wamp/bin/php/include/uuid.php');
>> >> >> >> >>>
>> >> >> >> >>> CassandraConn::add_node('192.168.1.1', 9160);
>> >> >> >> >>>
>> >> >> >> >>> $users = new CassandraCF('Keyspace1', 'Users');
>> >> >> >> >>>
>> >> >> >> >>> $users->insert('1', array('email' =>
'hoan.tonthat@gmail.com
>> ',
>> >> >> >> >>> 'password' => 'test'));
>> >> >> >> >>> ?>
>> >> >> >> >>>
>> >> >> >> >>>
>> >> >> >> >>> on running above script I get this error:
>> >> >> >> >>>
>> >> >> >> >>> Fatal error: Uncaught exception 'Exception'
with message
>> 'Could
>> >> >> >> >>> not
>> >> >> >> >>> connect to a cassandra server' in
>> >> >> >> >>> Z:\wamp\bin\php\include\phpcassa.php:70 Stack
trace: #0
>> >> >> >> >>> Z:\wamp\bin\php\include\phpcassa.php(193):
>> >> >> >> >>> CassandraConn::get_client()
>> >> >> >> >>> #1 Z:\wamp\www\PhpProject\index.php(38):
>> >> >> >> >>> CassandraCF->insert('1',
>> >> >> >> >>> Array) #2 {main} thrown in
>> Z:\wamp\bin\php\include\phpcassa.php
>> >> >> >> >>> on
>> >> >> >> >>> line 70
>> >> >> >> >>>
>> >> >> >> >>> Please let me know how can I make it work
>> >> >> >> >>>
>> >> >> >> >>> Thanks...
>> >> >> >> >>> --
>> >> >> >> >
>> >> >> >>
>> >> >> >>
>> >> >> >>
>> >> >> >> --
>> >> >> >>
>> >> >> >> ___________________________________
>> >> >> >>
>> >> >> >> Rajkumar Gupta
>> >> >> >> Dihing 173,
>> >> >> >> Indian Institute of Technology Guwahati
>> >> >> >> India
>> >> >> >>
>> >> >> >>
>> >> >> >> http://in.linkedin.com/in/rajkumargupta1
>> >> >> >
>> >> >> >
>> >> >
>> >> >
>> >
>> >
>>
>
>

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