Adding a new node to Cassandra cluster
Dear all I successfully added a new node to my cluster so now it's a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software.
Re: Adding a new node to Cassandra cluster
Hi there, When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. Good luck! 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Dear all ** ** I successfully added a new node to my cluster so now it’s a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. ** ** Please help me ** ** Thanks and Regards ** ** Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com ** ** -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen *Software engineer* * * W www.robinverlangen.nl E ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies.
RE: Adding a new node to Cassandra cluster
Hi, I am using Thrift API and I am not able to find anything on the internet about how to configure it for multiple nodes. I am not using any proper client like Hector. Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nl] Sent: Monday, June 04, 2012 2:44 PM To: user@cassandra.apache.org Subject: Re: Adding a new node to Cassandra cluster Hi there, When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. Good luck! 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.commailto:prakrati.agra...@mu-sigma.com Dear all I successfully added a new node to my cluster so now it's a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.comhttp://www.mu-sigma.com This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen Software engineer W www.robinverlangen.nlhttp://www.robinverlangen.nl E ro...@us2.nlmailto:ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies. This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software.
Re: Adding a new node to Cassandra cluster
You might consider using a higher level client (like Hector indeed). If you don't want this you will have to write your own connection pool. For start take a look at Hector. But keep in mind that you might be reinventing the wheel. 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Hi, ** ** I am using Thrift API and I am not able to find anything on the internet about how to configure it for multiple nodes. I am not using any proper client like Hector. ** ** Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com ** ** *From:* R. Verlangen [mailto:ro...@us2.nl] *Sent:* Monday, June 04, 2012 2:44 PM *To:* user@cassandra.apache.org *Subject:* Re: Adding a new node to Cassandra cluster ** ** Hi there, ** ** When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. ** ** Good luck! ** ** 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Dear all I successfully added a new node to my cluster so now it’s a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com ** ** -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. ** ** -- With kind regards, ** ** Robin Verlangen *Software engineer* ** ** W www.robinverlangen.nl E ro...@us2.nl ** ** Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies. ** ** -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen *Software engineer* * * W www.robinverlangen.nl E ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies.
Re: Adding a new node to Cassandra cluster
Prakrati, I believe even though you would specify one node in your code, internally the request would be going to any – perhaps more than 1 node based on your replication factors consistency level settings. You can try this by connecting to one node and writing to it and then reading the same data from another node. You can see this replication happening via CLI as well. Regards, Roshni From: R. Verlangen ro...@us2.nlmailto:ro...@us2.nl Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org user@cassandra.apache.orgmailto:user@cassandra.apache.org Date: Mon, 4 Jun 2012 02:30:40 -0700 To: user@cassandra.apache.orgmailto:user@cassandra.apache.org user@cassandra.apache.orgmailto:user@cassandra.apache.org Subject: Re: Adding a new node to Cassandra cluster You might consider using a higher level client (like Hector indeed). If you don't want this you will have to write your own connection pool. For start take a look at Hector. But keep in mind that you might be reinventing the wheel. 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.commailto:prakrati.agra...@mu-sigma.com Hi, I am using Thrift API and I am not able to find anything on the internet about how to configure it for multiple nodes. I am not using any proper client like Hector. Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.comhttp://www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nlmailto:ro...@us2.nl] Sent: Monday, June 04, 2012 2:44 PM To: user@cassandra.apache.orgmailto:user@cassandra.apache.org Subject: Re: Adding a new node to Cassandra cluster Hi there, When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. Good luck! 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.commailto:prakrati.agra...@mu-sigma.com Dear all I successfully added a new node to my cluster so now it’s a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.comhttp://www.mu-sigma.com This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen Software engineer W www.robinverlangen.nlhttp://www.robinverlangen.nl E ro...@us2.nlmailto:ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies. This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen Software engineer W www.robinverlangen.nlhttp://www.robinverlangen.nl E ro...@us2.nlmailto:ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use
Re: Adding a new node to Cassandra cluster
If you use thrift API, you have to maintain lot of low level code by yourself which is already being polished by HLC hector, pycassa also with HLC your can easily switch between thrift and growing CQL. On Mon, Jun 4, 2012 at 3:00 PM, R. Verlangen ro...@us2.nl wrote: You might consider using a higher level client (like Hector indeed). If you don't want this you will have to write your own connection pool. For start take a look at Hector. But keep in mind that you might be reinventing the wheel. 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Hi, ** ** I am using Thrift API and I am not able to find anything on the internet about how to configure it for multiple nodes. I am not using any proper client like Hector. ** ** Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com ** ** *From:* R. Verlangen [mailto:ro...@us2.nl] *Sent:* Monday, June 04, 2012 2:44 PM *To:* user@cassandra.apache.org *Subject:* Re: Adding a new node to Cassandra cluster ** ** Hi there, ** ** When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. ** ** Good luck! ** ** 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Dear all I successfully added a new node to my cluster so now it’s a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com ** ** -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. ** ** -- With kind regards, ** ** Robin Verlangen *Software engineer* ** ** W www.robinverlangen.nl E ro...@us2.nl ** ** Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies. ** ** -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen *Software engineer* * * W www.robinverlangen.nl E ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies.
RE: Adding a new node to Cassandra cluster
Ye I know I am trying to reinvent the wheel but I have to. The requirement is such that I have to use Java Thrift API without any client like Hector. Can you please tell me how do I do it. Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com From: samal [mailto:samalgo...@gmail.com] Sent: Monday, June 04, 2012 3:12 PM To: user@cassandra.apache.org Subject: Re: Adding a new node to Cassandra cluster If you use thrift API, you have to maintain lot of low level code by yourself which is already being polished by HLC hector, pycassa also with HLC your can easily switch between thrift and growing CQL. On Mon, Jun 4, 2012 at 3:00 PM, R. Verlangen ro...@us2.nlmailto:ro...@us2.nl wrote: You might consider using a higher level client (like Hector indeed). If you don't want this you will have to write your own connection pool. For start take a look at Hector. But keep in mind that you might be reinventing the wheel. 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.commailto:prakrati.agra...@mu-sigma.com Hi, I am using Thrift API and I am not able to find anything on the internet about how to configure it for multiple nodes. I am not using any proper client like Hector. Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.comhttp://www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nlmailto:ro...@us2.nl] Sent: Monday, June 04, 2012 2:44 PM To: user@cassandra.apache.orgmailto:user@cassandra.apache.org Subject: Re: Adding a new node to Cassandra cluster Hi there, When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. Good luck! 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.commailto:prakrati.agra...@mu-sigma.com Dear all I successfully added a new node to my cluster so now it’s a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.comhttp://www.mu-sigma.com This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen Software engineer W www.robinverlangen.nlhttp://www.robinverlangen.nl E ro...@us2.nlmailto:ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies. This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen Software engineer W www.robinverlangen.nlhttp://www.robinverlangen.nl E ro...@us2.nlmailto:ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you
Re: Adding a new node to Cassandra cluster
Connection pooling involves things like: - (transparent) failover / retry - disposal of connections after X messages - keep track of connections Again: take a look at the hector connection pool. Source: https://github.com/rantav/hector/tree/master/core/src/main/java/me/prettyprint/cassandra/connection 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Ye I know I am trying to reinvent the wheel but I have to. The requirement is such that I have to use Java Thrift API without any client like Hector. Can you please tell me how do I do it. ** ** Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com ** ** *From:* samal [mailto:samalgo...@gmail.com] *Sent:* Monday, June 04, 2012 3:12 PM *To:* user@cassandra.apache.org *Subject:* Re: Adding a new node to Cassandra cluster ** ** If you use thrift API, you have to maintain lot of low level code by yourself which is already being polished by HLC hector, pycassa also with HLC your can easily switch between thrift and growing CQL. On Mon, Jun 4, 2012 at 3:00 PM, R. Verlangen ro...@us2.nl wrote: You might consider using a higher level client (like Hector indeed). If you don't want this you will have to write your own connection pool. For start take a look at Hector. But keep in mind that you might be reinventing the wheel. ** ** 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Hi, I am using Thrift API and I am not able to find anything on the internet about how to configure it for multiple nodes. I am not using any proper client like Hector. Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com *From:* R. Verlangen [mailto:ro...@us2.nl] *Sent:* Monday, June 04, 2012 2:44 PM *To:* user@cassandra.apache.org *Subject:* Re: Adding a new node to Cassandra cluster Hi there, When you speak to one node it will internally redirect the request to the proper node (local / external): but you won't be able to failover on a crash of the localhost. For adding another node to the connection pool you should take a look at the documentation of your java client. Good luck! 2012/6/4 Prakrati Agrawal prakrati.agra...@mu-sigma.com Dear all I successfully added a new node to my cluster so now it’s a 2 node cluster. But how do I mention it in my Java code as when I am retrieving data its retrieving only for one node that I am specifying in the localhost. How do I specify more than one node in the localhost. Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(ID)| 9731648376 | www.mu-sigma.com -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet accessibility, the Company cannot accept liability for any virus introduced by this e-mail or any attachment and you are advised to use up-to-date virus checking software. -- With kind regards, Robin Verlangen *Software engineer* W www.robinverlangen.nl E ro...@us2.nl Disclaimer: The information contained in this message and attachments is intended solely for the attention and use of the named addressee and may be confidential. If you are not the intended recipient, you are reminded that the information remains the property of the sender. You must not use, disclose, distribute, copy, print or rely on this e-mail. If you have received this message in error, please contact the sender immediately and irrevocably delete this message and any copies. ** ** -- This email message may contain proprietary, private and confidential information. The information transmitted is intended only for the person(s) or entities to which it is addressed. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon, this information by persons or entities other than the intended recipient is prohibited and may be illegal. If you received this in error, please contact the sender and delete the message from your system. Mu Sigma takes all reasonable steps to ensure that its electronic communications are free from viruses. However, given Internet
