Is there a way to find out which node was contacted first during the initial setup by the driver? For example, is there a way to find the host 10.9.58.64 that was contacted?
WARNING:cassandra.cluster:Cluster.__init__ called with contact_points…
I am trying to connect to Cassandra with the python driver:
from cassandra.cluster import Cluster
from cassandra.auth import PlainTextAuthProvider
auth_provider = PlainTextAuthProvider(username='yyyy',password='zzzzz')
cluster =…
This is my first query on the forum so please correct if my understanding are wrong.
I am executing exercise Application Driver Connection from DS201.
Table is as follows:
cqlsh:killrvideo> SELECT * FROM videos_by_tag ;
tag | added_date …
We encountered a strange issue when altering a table. We use Cassandra python driver sync_table() method to sync from our model (defined in a py file) to Cassandra. The cluster is a 20 node being stressed decently (all nodes in range of 50-70% max…
I am trying to execute multi-process to pull the data from Cassandra. But, I'm facing the issue.I want to pull it for single key or multiple keys using the multi-process provided my Cassandra
My cassandra_db class
from cassandra.cluster import…
I'm running some tests on cassandra, that need the data in the table to be removed after every run. So I wrote a script that TRUNCATES the data. My question is, does it leave the table unconfigured(removes all columns) after I TRUNCATE the table?…
I have code
from uuid import uuid4
from uuid import uuid1
from cassandra.cqlengine import columns, connection
from cassandra.cqlengine.models import Model
from cassandra.cqlengine.management import sync_table
class BaseModel(Model):
…
I am trying to move from using pycassa to native protocol in my project (which will let us upgrade the version of cassandra). My schema was defined using pycassa so it created a Column family using compact storage and it has 3 columns which are not…
I am developing a Pyramid 1.7 web app using Python 3.5, uWSGI 2.0.11 and SQLAlchemy 1.0.9. Seems like when using uWSGI with multiple workers we should use a uWSGI postfork function to connect to the Cassandra cluster ensuring each fork will use a…
I am running a web app using the following components:
Python 3.5.2
uWSGI 2.0.11.2
cassandra-driver 3.6.0
cassandra 3.7
With a Cassandra cluster (3 nodes):
Node 1 - IP: 172.17.0.4
Node 2 - IP: 172.17.0.5
Node 3 - IP: 172.17.0.6
Using the…
Yes, iterate over Query is good thing, but i need paging results and send them with token to frontend.
Can i create token for previous page too?
How can i get and use ResponseFuture._paging_state in Models or Querysets.
I search something like…
I'm trying to write some data to cassandra, a connection is established and this is my database schema :
CREATE TABLE IF NOT EXISTS road_traffic (
road_id INT,
timestamp TIMESTAMP,
radar_id INT,
vehicles MAP
I believe I'm doing exactly as mentioned in the documentation Python-driver-AstraDB
cloud_config= {
'secure_connect_bundle': 'secure-connect-test-warehouse.zip'
}
logging.basicConfig(level=logging.DEBUG)
auth_provider =…
Full Data before exporting
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Connection with cassandra
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Exporting data
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Loading Data
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Failing to insert total number of records in the…
