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Posted to user@cassandra.apache.org by Vivek Mishra <vi...@impetus.co.in> on 2011/06/17 09:55:44 UTC
Cassandra.yaml
I have a query:
I have my Cassandra server running on my local machine and it has loaded Cassandra specific settings from
apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.yaml
Now If I am writing a java program to connect to this server why do I need to provide a new Cassandra.yaml file again? Even if server is already up and running
Even if I can create keyspaces, columnfamilies programmatically? Isn't it some type of redundancy?
Might be my query is a bit irrelevant.
-Vivek
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on 'Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud '.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
RE: Cassandra.yaml
Posted by Vivek Mishra <vi...@impetus.co.in>.
Thanks Aaron. It is really a great pointer to solution.
-Vivek
From: aaron morton [mailto:aaron@thelastpickle.com]
Sent: Monday, June 20, 2011 12:51 AM
To: user@cassandra.apache.org
Subject: Re: Cassandra.yaml
The change to the remove the calls to DatabaseDecriptor were in this commit on the 0.8 branch
https://github.com/apache/cassandra/commit/fe122c8c7d9ca0f002d5f394b4414dc91f278d1f
It looks like it did not make it over to the 0.8.0 branch
https://github.com/apache/cassandra/blob/cassandra-0.8.0/src/java/org/apache/cassandra/config/CFMetaData.java#L642
It is in the trunk and the current trunk and builds. Can you try the nightly here
https://builds.apache.org/job/Cassandra-0.8/
Hope that helps.
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 17 Jun 2011, at 20:52, Vivek Mishra wrote:
Thanks Aaron. But I tried it with 0.8.0 release only!
From: aaron morton [mailto:aaron@thelastpickle.com]
Sent: Friday, June 17, 2011 1:55 PM
To: user@cassandra.apache.org<ma...@cassandra.apache.org>
Subject: Re: Cassandra.yaml
sounds like
https://issues.apache.org/jira/browse/CASSANDRA-2694
Cheers
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 17 Jun 2011, at 20:10, Vivek Mishra wrote:
Hi Sasha,
This is what I am trying . I can sense this is happening with JDBCDriver stuff.
public static void main(String[] args) {
try {
java.sql.Connection con = null;
Class.forName("org.apache.cassandra.cql.jdbc.CassandraDriver");
con = DriverManager
.getConnection("jdbc:cassandra:root/root@localhost:9160/Key1");
// con.
System.out.println(con !=null);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
Getting following error:
org.apache.cassandra.config.ConfigurationException: Cannot locate cassandra.yaml
at org.apache.cassandra.config.DatabaseDescriptor.getStorageConfigURL(DatabaseDescriptor.java:111)
at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:121)
at org.apache.cassandra.config.CFMetaData.fromThrift(CFMetaData.java:642)
at org.apache.cassandra.cql.jdbc.ColumnDecoder.<init>(ColumnDecoder.java:61)
at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:142)
at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:124)
at org.apache.cassandra.cql.jdbc.CassandraConnection.<init>(CassandraConnection.java:83)
at org.apache.cassandra.cql.jdbc.CassandraDriver.connect(CassandraDriver.java:86)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
Ideally it should get it . Not sure what is the issue.
-Vivek
-----Original Message-----
From: Sasha Dolgy [mailto:sdolgy@gmail.com]
Sent: Friday, June 17, 2011 1:31 PM
To: user@cassandra.apache.org<ma...@cassandra.apache.org>
Subject: Re: Cassandra.yaml
Hi Vivek,
When I write client code in Java, using Hector, I don't specify a cassandra.yaml ... I specify the host(s) and keyspace I want to connect to. Alternately, I specify the host(s) and create the keyspace if the one I would like to use doesn't exist (new cluster for example). At no point do I use yaml file with my client code....
The conf/cassandra.yaml is there to tell the cassandra server how to behave / operate when it starts ...
-sd
On Fri, Jun 17, 2011 at 9:55 AM, Vivek Mishra <vi...@impetus.co.in>> wrote:
I have a query:
I have my Cassandra server running on my local machine and it has
loaded Cassandra specific settings from
apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.y
aml
Now If I am writing a java program to connect to this server why do I
need to provide a new Cassandra.yaml file again? Even if server is
already up and running
Even if I can create keyspaces, columnfamilies programmatically? Isn't it some type of redundancy?
Might be my query is a bit irrelevant.
-Vivek
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on 'Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud '.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering athttp://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on 'Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud '.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on 'Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud '.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
Re: Cassandra.yaml
Posted by aaron morton <aa...@thelastpickle.com>.
The change to the remove the calls to DatabaseDecriptor were in this commit on the 0.8 branch
https://github.com/apache/cassandra/commit/fe122c8c7d9ca0f002d5f394b4414dc91f278d1f
It looks like it did not make it over to the 0.8.0 branch
https://github.com/apache/cassandra/blob/cassandra-0.8.0/src/java/org/apache/cassandra/config/CFMetaData.java#L642
It is in the trunk and the current trunk and builds. Can you try the nightly here
https://builds.apache.org/job/Cassandra-0.8/
Hope that helps.
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 17 Jun 2011, at 20:52, Vivek Mishra wrote:
> Thanks Aaron. But I tried it with 0.8.0 release only!
>
> From: aaron morton [mailto:aaron@thelastpickle.com]
> Sent: Friday, June 17, 2011 1:55 PM
> To: user@cassandra.apache.org
> Subject: Re: Cassandra.yaml
>
> sounds like
> https://issues.apache.org/jira/browse/CASSANDRA-2694
>
> Cheers
>
> -----------------
> Aaron Morton
> Freelance Cassandra Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 17 Jun 2011, at 20:10, Vivek Mishra wrote:
>
>
> Hi Sasha,
> This is what I am trying . I can sense this is happening with JDBCDriver stuff.
>
> public static void main(String[] args) {
> try {
> java.sql.Connection con = null;
> Class.forName("org.apache.cassandra.cql.jdbc.CassandraDriver");
> con = DriverManager
> .getConnection("jdbc:cassandra:root/root@localhost:9160/Key1");
> // con.
> System.out.println(con !=null);
>
> } catch (ClassNotFoundException e) {
> e.printStackTrace();
> } catch (SQLException e) {
> e.printStackTrace();
> }
> }
>
> Getting following error:
> org.apache.cassandra.config.ConfigurationException: Cannot locate cassandra.yaml
> at org.apache.cassandra.config.DatabaseDescriptor.getStorageConfigURL(DatabaseDescriptor.java:111)
> at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:121)
> at org.apache.cassandra.config.CFMetaData.fromThrift(CFMetaData.java:642)
> at org.apache.cassandra.cql.jdbc.ColumnDecoder.<init>(ColumnDecoder.java:61)
> at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:142)
> at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:124)
> at org.apache.cassandra.cql.jdbc.CassandraConnection.<init>(CassandraConnection.java:83)
> at org.apache.cassandra.cql.jdbc.CassandraDriver.connect(CassandraDriver.java:86)
> at java.sql.DriverManager.getConnection(Unknown Source)
> at java.sql.DriverManager.getConnection(Unknown Source)
>
>
>
> Ideally it should get it . Not sure what is the issue.
>
> -Vivek
>
> -----Original Message-----
> From: Sasha Dolgy [mailto:sdolgy@gmail.com]
> Sent: Friday, June 17, 2011 1:31 PM
> To: user@cassandra.apache.org
> Subject: Re: Cassandra.yaml
>
> Hi Vivek,
>
> When I write client code in Java, using Hector, I don't specify a cassandra.yaml ... I specify the host(s) and keyspace I want to connect to. Alternately, I specify the host(s) and create the keyspace if the one I would like to use doesn't exist (new cluster for example). At no point do I use yaml file with my client code....
>
> The conf/cassandra.yaml is there to tell the cassandra server how to behave / operate when it starts ...
>
> -sd
>
> On Fri, Jun 17, 2011 at 9:55 AM, Vivek Mishra <vi...@impetus.co.in> wrote:
>
>
> I have a query:
>
> I have my Cassandra server running on my local machine and it has
> loaded Cassandra specific settings from
>
> apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.y
> aml
>
> Now If I am writing a java program to connect to this server why do I
> need to provide a new Cassandra.yaml file again? Even if server is
> already up and running
>
> Even if I can create keyspaces, columnfamilies programmatically? Isn’t it some type of redundancy?
>
> Might be my query is a bit irrelevant.
>
> -Vivek
>
> ________________________________
>
> Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on ‘Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud ‘.
>
> Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering athttp://www.impetus.com/webinar?eventid=42 .
>
>
> NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
>
>
>
> Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on ‘Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud ‘.
>
> Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
>
>
> NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
RE: Cassandra.yaml
Posted by Vivek Mishra <vi...@impetus.co.in>.
Thanks Aaron. But I tried it with 0.8.0 release only!
From: aaron morton [mailto:aaron@thelastpickle.com]
Sent: Friday, June 17, 2011 1:55 PM
To: user@cassandra.apache.org
Subject: Re: Cassandra.yaml
sounds like
https://issues.apache.org/jira/browse/CASSANDRA-2694
Cheers
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 17 Jun 2011, at 20:10, Vivek Mishra wrote:
Hi Sasha,
This is what I am trying . I can sense this is happening with JDBCDriver stuff.
public static void main(String[] args) {
try {
java.sql.Connection con = null;
Class.forName("org.apache.cassandra.cql.jdbc.CassandraDriver");
con = DriverManager
.getConnection("jdbc:cassandra:root/root@localhost:9160/Key1");
// con.
System.out.println(con !=null);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
Getting following error:
org.apache.cassandra.config.ConfigurationException: Cannot locate cassandra.yaml
at org.apache.cassandra.config.DatabaseDescriptor.getStorageConfigURL(DatabaseDescriptor.java:111)
at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:121)
at org.apache.cassandra.config.CFMetaData.fromThrift(CFMetaData.java:642)
at org.apache.cassandra.cql.jdbc.ColumnDecoder.<init>(ColumnDecoder.java:61)
at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:142)
at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:124)
at org.apache.cassandra.cql.jdbc.CassandraConnection.<init>(CassandraConnection.java:83)
at org.apache.cassandra.cql.jdbc.CassandraDriver.connect(CassandraDriver.java:86)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
Ideally it should get it . Not sure what is the issue.
-Vivek
-----Original Message-----
From: Sasha Dolgy [mailto:sdolgy@gmail.com]
Sent: Friday, June 17, 2011 1:31 PM
To: user@cassandra.apache.org<ma...@cassandra.apache.org>
Subject: Re: Cassandra.yaml
Hi Vivek,
When I write client code in Java, using Hector, I don't specify a cassandra.yaml ... I specify the host(s) and keyspace I want to connect to. Alternately, I specify the host(s) and create the keyspace if the one I would like to use doesn't exist (new cluster for example). At no point do I use yaml file with my client code....
The conf/cassandra.yaml is there to tell the cassandra server how to behave / operate when it starts ...
-sd
On Fri, Jun 17, 2011 at 9:55 AM, Vivek Mishra <vi...@impetus.co.in>> wrote:
I have a query:
I have my Cassandra server running on my local machine and it has
loaded Cassandra specific settings from
apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.y
aml
Now If I am writing a java program to connect to this server why do I
need to provide a new Cassandra.yaml file again? Even if server is
already up and running
Even if I can create keyspaces, columnfamilies programmatically? Isn't it some type of redundancy?
Might be my query is a bit irrelevant.
-Vivek
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on 'Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud '.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on 'Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud '.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
Re: Cassandra.yaml
Posted by aaron morton <aa...@thelastpickle.com>.
sounds like
https://issues.apache.org/jira/browse/CASSANDRA-2694
Cheers
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 17 Jun 2011, at 20:10, Vivek Mishra wrote:
> Hi Sasha,
> This is what I am trying . I can sense this is happening with JDBCDriver stuff.
>
> public static void main(String[] args) {
> try {
> java.sql.Connection con = null;
> Class.forName("org.apache.cassandra.cql.jdbc.CassandraDriver");
> con = DriverManager
> .getConnection("jdbc:cassandra:root/root@localhost:9160/Key1");
> // con.
> System.out.println(con !=null);
>
> } catch (ClassNotFoundException e) {
> e.printStackTrace();
> } catch (SQLException e) {
> e.printStackTrace();
> }
> }
>
> Getting following error:
> org.apache.cassandra.config.ConfigurationException: Cannot locate cassandra.yaml
> at org.apache.cassandra.config.DatabaseDescriptor.getStorageConfigURL(DatabaseDescriptor.java:111)
> at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:121)
> at org.apache.cassandra.config.CFMetaData.fromThrift(CFMetaData.java:642)
> at org.apache.cassandra.cql.jdbc.ColumnDecoder.<init>(ColumnDecoder.java:61)
> at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:142)
> at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:124)
> at org.apache.cassandra.cql.jdbc.CassandraConnection.<init>(CassandraConnection.java:83)
> at org.apache.cassandra.cql.jdbc.CassandraDriver.connect(CassandraDriver.java:86)
> at java.sql.DriverManager.getConnection(Unknown Source)
> at java.sql.DriverManager.getConnection(Unknown Source)
>
>
>
> Ideally it should get it . Not sure what is the issue.
>
> -Vivek
>
> -----Original Message-----
> From: Sasha Dolgy [mailto:sdolgy@gmail.com]
> Sent: Friday, June 17, 2011 1:31 PM
> To: user@cassandra.apache.org
> Subject: Re: Cassandra.yaml
>
> Hi Vivek,
>
> When I write client code in Java, using Hector, I don't specify a cassandra.yaml ... I specify the host(s) and keyspace I want to connect to. Alternately, I specify the host(s) and create the keyspace if the one I would like to use doesn't exist (new cluster for example). At no point do I use yaml file with my client code....
>
> The conf/cassandra.yaml is there to tell the cassandra server how to behave / operate when it starts ...
>
> -sd
>
> On Fri, Jun 17, 2011 at 9:55 AM, Vivek Mishra <vi...@impetus.co.in> wrote:
>>
>> I have a query:
>>
>> I have my Cassandra server running on my local machine and it has
>> loaded Cassandra specific settings from
>>
>> apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.y
>> aml
>>
>> Now If I am writing a java program to connect to this server why do I
>> need to provide a new Cassandra.yaml file again? Even if server is
>> already up and running
>>
>> Even if I can create keyspaces, columnfamilies programmatically? Isn’t it some type of redundancy?
>>
>> Might be my query is a bit irrelevant.
>>
>> -Vivek
>
> ________________________________
>
> Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on ‘Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud ‘.
>
> Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
>
>
> NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
RE: Cassandra.yaml
Posted by Vivek Mishra <vi...@impetus.co.in>.
Hi Sasha,
This is what I am trying . I can sense this is happening with JDBCDriver stuff.
public static void main(String[] args) {
try {
java.sql.Connection con = null;
Class.forName("org.apache.cassandra.cql.jdbc.CassandraDriver");
con = DriverManager
.getConnection("jdbc:cassandra:root/root@localhost:9160/Key1");
// con.
System.out.println(con !=null);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
}
Getting following error:
org.apache.cassandra.config.ConfigurationException: Cannot locate cassandra.yaml
at org.apache.cassandra.config.DatabaseDescriptor.getStorageConfigURL(DatabaseDescriptor.java:111)
at org.apache.cassandra.config.DatabaseDescriptor.<clinit>(DatabaseDescriptor.java:121)
at org.apache.cassandra.config.CFMetaData.fromThrift(CFMetaData.java:642)
at org.apache.cassandra.cql.jdbc.ColumnDecoder.<init>(ColumnDecoder.java:61)
at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:142)
at org.apache.cassandra.cql.jdbc.Connection.execute(Connection.java:124)
at org.apache.cassandra.cql.jdbc.CassandraConnection.<init>(CassandraConnection.java:83)
at org.apache.cassandra.cql.jdbc.CassandraDriver.connect(CassandraDriver.java:86)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
Ideally it should get it . Not sure what is the issue.
-Vivek
-----Original Message-----
From: Sasha Dolgy [mailto:sdolgy@gmail.com]
Sent: Friday, June 17, 2011 1:31 PM
To: user@cassandra.apache.org
Subject: Re: Cassandra.yaml
Hi Vivek,
When I write client code in Java, using Hector, I don't specify a cassandra.yaml ... I specify the host(s) and keyspace I want to connect to. Alternately, I specify the host(s) and create the keyspace if the one I would like to use doesn't exist (new cluster for example). At no point do I use yaml file with my client code....
The conf/cassandra.yaml is there to tell the cassandra server how to behave / operate when it starts ...
-sd
On Fri, Jun 17, 2011 at 9:55 AM, Vivek Mishra <vi...@impetus.co.in> wrote:
>
> I have a query:
>
> I have my Cassandra server running on my local machine and it has
> loaded Cassandra specific settings from
>
> apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.y
> aml
>
> Now If I am writing a java program to connect to this server why do I
> need to provide a new Cassandra.yaml file again? Even if server is
> already up and running
>
> Even if I can create keyspaces, columnfamilies programmatically? Isn’t it some type of redundancy?
>
> Might be my query is a bit irrelevant.
>
> -Vivek
________________________________
Write to us for a Free Gold Pass to the Cloud Computing Expo, NYC to attend a live session by Head of Impetus Labs on ‘Secrets of Building a Cloud Vendor Agnostic PetaByte Scale Real-time Secure Web Application on the Cloud ‘.
Looking to leverage the Cloud for your Big Data Strategy ? Attend Impetus webinar on May 27 by registering at http://www.impetus.com/webinar?eventid=42 .
NOTE: This message may contain information that is confidential, proprietary, privileged or otherwise protected by law. The message is intended solely for the named addressee. If received in error, please destroy and notify the sender. Any use of this email is prohibited when received in error. Impetus does not represent, warrant and/or guarantee, that the integrity of this communication has been maintained nor that the communication is free of errors, virus, interception or interference.
Re: Cassandra.yaml
Posted by Sasha Dolgy <sd...@gmail.com>.
Hi Vivek,
When I write client code in Java, using Hector, I don't specify a
cassandra.yaml ... I specify the host(s) and keyspace I want to
connect to. Alternately, I specify the host(s) and create the
keyspace if the one I would like to use doesn't exist (new cluster for
example). At no point do I use yaml file with my client code....
The conf/cassandra.yaml is there to tell the cassandra server how to
behave / operate when it starts ...
-sd
On Fri, Jun 17, 2011 at 9:55 AM, Vivek Mishra
<vi...@impetus.co.in> wrote:
>
> I have a query:
>
> I have my Cassandra server running on my local machine and it has loaded Cassandra specific settings from
>
> apache-cassandra-0.8.0-src/apache-cassandra-0.8.0-src/conf/cassandra.yaml
>
> Now If I am writing a java program to connect to this server why do I need to provide a new Cassandra.yaml file again? Even if server is already up and running
>
> Even if I can create keyspaces, columnfamilies programmatically? Isn’t it some type of redundancy?
>
> Might be my query is a bit irrelevant.
>
> -Vivek