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Posted to user@cassandra.apache.org by Daniel Bernstein <db...@archive.org> on 2010/07/27 21:26:50 UTC
NoServer Available
I've set up a 2 node cluster and I'm trying to connect using pycassa.
My thrift address is set to the default: localhost:9160
I've verified that the port is open and I'm able to connect to it via
telnet.
My keyspace "Ananda" is defined as is the column family "URL" in storage.xml
Running the following commands locally, I get this:
>>> client = pycassa.connect("Ananda", ['127.0.0.1:9160'],timeout=3.5)
>>> cf = pycassa.ColumnFamily(client, "URL")
>>> cf.insert("foo", {"bar":"value"})
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "pycassa/columnfamily.py", line 332, in insert
self._wcl(write_consistency_level))
File "pycassa/connection.py", line 164, in _client_call
conn = self._ensure_connection()
File "pycassa/connection.py", line 175, in _ensure_connection
conn = self.connect()
File "pycassa/connection.py", line 193, in connect
return self.connect()
File "pycassa/connection.py", line 186, in connect
server = self._servers.get()
File "pycassa/connection.py", line 136, in get
raise NoServerAvailable()
pycassa.connection.NoServerAvailable
NB: When I try to connect without any timeout, it just hangs.
When I shutdown cassandra, it fails immediately (rather than failing in 3.5
seconds when I use a timeout).
Any help would be much appreciated.
--Daniel
Re: NoServer Available
Posted by Daniel Bernstein <db...@archive.org>.
Thanks for the help Aaron.
I sorted it out: the problem was that I was using the latest version of
pycassa against cassandra 0.6.x.
When I downloaded the 0.3.0 pycassa and used the previous api, all worked
properly.
Cheers,
db
On Wed, Jul 28, 2010 at 2:44 PM, Aaron Morton <aa...@thelastpickle.com>wrote:
> Just checking the obvious, your connecting to the local host so is this
> code running on one of the machines with the cassandra installed ?
>
> Second, assuming your using the current git hub source, put a break point
> in connection.py at line 191
> to see what the actual error is when it tries to connect.
>
> Aaron
>
>
> On 28 Jul, 2010,at 07:26 AM, Daniel Bernstein <db...@archive.org>
> wrote:
>
> I've set up a 2 node cluster and I'm trying to connect using pycassa.
>
> My thrift address is set to the default: localhost:9160
>
> I've verified that the port is open and I'm able to connect to it via
> telnet.
>
> My keyspace "Ananda" is defined as is the column family "URL" in
> storage.xml
>
> Running the following commands locally, I get this:
>
>
> >>> client = pycassa.connect("Ananda", ['127.0.0.1:9160'],timeout=3.5)
> >>> cf = pycassa.ColumnFamily(client, "URL")
> >>> cf.insert("foo", {"bar":"value"})
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "pycassa/columnfamily.py", line 332, in insert
> self._wcl(write_consistency_level))
> File "pycassa/connection.py", line 164, in _client_call
> conn = self._ensure_connection()
> File "pycassa/connection.py", line 175, in _ensure_connection
> conn = self.connect()
> File "pycassa/connection.py", line 193, in connect
> return self.connect()
> File "pycassa/connection.py", line 186, in connect
> server = self._servers.get()
> File "pycassa/connection.py", line 136, in get
> raise NoServerAvailable()
> pycassa.connection.NoServerAvailable
>
>
> NB: When I try to connect without any timeout, it just hangs.
> When I shutdown cassandra, it fails immediately (rather than failing in 3.5
> seconds when I use a timeout).
>
> Any help would be much appreciated.
>
> --Daniel
>
>
Re: NoServer Available
Posted by Daniel Bernstein <da...@gmail.com>.
Thanks for the help Aaron.
I sorted it out: the problem was that I was using the latest version of
pycassa against cassandra 0.6.x.
When I downloaded the 0.3.0 pycassa and used the previous api, all worked
properly.
Cheers,
db
On Wed, Jul 28, 2010 at 2:44 PM, Aaron Morton <aa...@thelastpickle.com>wrote:
> Just checking the obvious, your connecting to the local host so is this
> code running on one of the machines with the cassandra installed ?
>
> Second, assuming your using the current git hub source, put a break point
> in connection.py at line 191
> to see what the actual error is when it tries to connect.
>
> Aaron
>
>
> On 28 Jul, 2010,at 07:26 AM, Daniel Bernstein <db...@archive.org>
> wrote:
>
> I've set up a 2 node cluster and I'm trying to connect using pycassa.
>
> My thrift address is set to the default: localhost:9160
>
> I've verified that the port is open and I'm able to connect to it via
> telnet.
>
> My keyspace "Ananda" is defined as is the column family "URL" in
> storage.xml
>
> Running the following commands locally, I get this:
>
>
> >>> client = pycassa.connect("Ananda", ['127.0.0.1:9160'],timeout=3.5)
> >>> cf = pycassa.ColumnFamily(client, "URL")
> >>> cf.insert("foo", {"bar":"value"})
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "pycassa/columnfamily.py", line 332, in insert
> self._wcl(write_consistency_level))
> File "pycassa/connection.py", line 164, in _client_call
> conn = self._ensure_connection()
> File "pycassa/connection.py", line 175, in _ensure_connection
> conn = self.connect()
> File "pycassa/connection.py", line 193, in connect
> return self.connect()
> File "pycassa/connection.py", line 186, in connect
> server = self._servers.get()
> File "pycassa/connection.py", line 136, in get
> raise NoServerAvailable()
> pycassa.connection.NoServerAvailable
>
>
> NB: When I try to connect without any timeout, it just hangs.
> When I shutdown cassandra, it fails immediately (rather than failing in 3.5
> seconds when I use a timeout).
>
> Any help would be much appreciated.
>
> --Daniel
>
>
Re: NoServer Available
Posted by Aaron Morton <aa...@thelastpickle.com>.
Just checking the obvious, your connecting to the local host so is this code running on one of the machines with the cassandra installed ?
Second, assuming your using the current git hub source, put a break point in connection.py at line 191
to see what the actual error is when it tries to connect.
Aaron
On 28 Jul, 2010,at 07:26 AM, Daniel Bernstein <db...@archive.org> wrote:
> I've set up a 2 node cluster and I'm trying to connect using pycassa.
>
> My thrift address is set to the default: localhost:9160
>
> I've verified that the port is open and I'm able to connect to it via telnet.
>
> My keyspace "Ananda" is defined as is the column family "URL" in storage.xml
>
> Running the following commands locally, I get this:
>
>
> >>> client = pycassa.connect("Ananda", ['127.0.0.1:9160'],timeout=3.5)
> >>> cf = pycassa.ColumnFamily(client, "URL")
> >>> cf.insert("foo", {"bar":"value"})
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "pycassa/columnfamily.py", line 332, in insert
> self._wcl(write_consistency_level))
> File "pycassa/connection.py", line 164, in _client_call
> conn = self._ensure_connection()
> File "pycassa/connection.py", line 175, in _ensure_connection
> conn = self.connect()
> File "pycassa/connection.py", line 193, in connect
> return self.connect()
> File "pycassa/connection.py", line 186, in connect
> server = self._servers.get()
> File "pycassa/connection.py", line 136, in get
> raise NoServerAvailable()
> pycassaconnection.NoServerAvailable
>
>
> NB: When I try to connect without any timeout, it just hangs.
> When I shutdown cassandra, it fails immediately (rather than failing in 3.5 seconds when I use a timeout).
>
> Any help would be much appreciated.
>
> --Daniel
>