Re: Problem in getting data from a 2 node cluster
1 Data Stax has some good documentation here http://www.datastax.com/docs/1.1/index Cheers - Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 8/06/2012, at 2:50 PM, Prakrati Agrawal wrote: > What is the default replication factor? I did not set any replication factor. > > Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com > > -Original Message- > From: Tim Wintle [mailto:timwin...@gmail.com] > Sent: Wednesday, June 06, 2012 5:42 PM > To: user@cassandra.apache.org > Subject: RE: Problem in getting data from a 2 node cluster > > On Wed, 2012-06-06 at 06:54 -0500, Prakrati Agrawal wrote: >> This node will not auto bootstrap because it is configured to be a >> seed node > > This means the cassandra.yaml on that node references itself as a seed > node. > > > After you decommission the second node, can you still access the entire > dataset in the single node cluser, or has it been lost along the way? > > What is the replication factor for your data? > > > Tim Wintle > > > > 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: Problem in getting data from a 2 node cluster of Cassandra
run nodetool -h localhost cfstats on the nodes... this gives node specific column family based data... just run this for both nodes... On Fri, Jun 8, 2012 at 12:46 PM, Prakrati Agrawal wrote: > Yes the code is the same for both 1 and 2 node cluster. It's a Hector code. > How do I get the number of rows and columns from Cassandra CLI as the data is > very large. > > Thanks and Regards > Prakrati > > > -Original Message- > From: Roshni Rajagopal [mailto:roshni.rajago...@wal-mart.com] > Sent: Friday, June 08, 2012 12:43 PM > To: user@cassandra.apache.org > Subject: Re: Problem in getting data from a 2 node cluster of Cassandra > > Hi Prakrati, > > In an ideal situation, no data should be lost when a node is added. How are > you getting the statistics below. > The output below looks like its from some code using Hector or Thrift..is the > code to get statistics from a 1 node cluster or 2 exactly the same- with the > only change being a node being added or removed? > Could you verify the number of rows & cols in the column family using CLI or > CQL.. > > Regards, > Roshni > > > > > From: Prakrati Agrawal > mailto:prakrati.agra...@mu-sigma.com>> > Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" > mailto:user@cassandra.apache.org>> > Date: Friday 8 June 2012 11:50 AM > To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" > mailto:user@cassandra.apache.org>> > Subject: Problem in getting data from a 2 node cluster of Cassandra > > Dear all > > I was originally having a 1 node cluster. Then I added one more node to it > with initial token configured appropriately. Now when I run my queries I am > not getting all my data ie all columns. > Output on 2 nodes > Time taken to retrieve columns 43707 of key range is 1276 > Time taken to retrieve columns 2084199 of all tickers is 54334 > Time taken to count is 230776 > Total number of rows in the database are 183 > Total number of columns in the database are 7903753 > Output on 1 node > Time taken to retrieve columns 43707 of key range is 767 > Time taken to retrieve columns 382 of all tickers is 52793 > Time taken to count is 268135 > Total number of rows in the database are 396 > Total number of columns in the database are 16316426 > Please help me. Where is my data going or how should I retrieve it. I have > consistency level specified as ONE and I did not specify any replication > factor. > > > > Prakrati Agrawal | Developer - Big Data(I&D)| 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. > > This email and any files transmitted with it are confidential and intended > solely for the individual or entity to whom they are addressed. If you have > received this email in error destroy it immediately. *** Walmart Confidential > *** > > 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: Problem in getting data from a 2 node cluster of Cassandra
Yes the code is the same for both 1 and 2 node cluster. It's a Hector code. How do I get the number of rows and columns from Cassandra CLI as the data is very large. Thanks and Regards Prakrati -Original Message- From: Roshni Rajagopal [mailto:roshni.rajago...@wal-mart.com] Sent: Friday, June 08, 2012 12:43 PM To: user@cassandra.apache.org Subject: Re: Problem in getting data from a 2 node cluster of Cassandra Hi Prakrati, In an ideal situation, no data should be lost when a node is added. How are you getting the statistics below. The output below looks like its from some code using Hector or Thrift..is the code to get statistics from a 1 node cluster or 2 exactly the same- with the only change being a node being added or removed? Could you verify the number of rows & cols in the column family using CLI or CQL.. Regards, Roshni From: Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" mailto:user@cassandra.apache.org>> Date: Friday 8 June 2012 11:50 AM To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" mailto:user@cassandra.apache.org>> Subject: Problem in getting data from a 2 node cluster of Cassandra Dear all I was originally having a 1 node cluster. Then I added one more node to it with initial token configured appropriately. Now when I run my queries I am not getting all my data ie all columns. Output on 2 nodes Time taken to retrieve columns 43707 of key range is 1276 Time taken to retrieve columns 2084199 of all tickers is 54334 Time taken to count is 230776 Total number of rows in the database are 183 Total number of columns in the database are 7903753 Output on 1 node Time taken to retrieve columns 43707 of key range is 767 Time taken to retrieve columns 382 of all tickers is 52793 Time taken to count is 268135 Total number of rows in the database are 396 Total number of columns in the database are 16316426 Please help me. Where is my data going or how should I retrieve it. I have consistency level specified as ONE and I did not specify any replication factor. Prakrati Agrawal | Developer - Big Data(I&D)| 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. This email and any files transmitted with it are confidential and intended solely for the individual or entity to whom they are addressed. If you have received this email in error destroy it immediately. *** Walmart Confidential *** 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: Problem in getting data from a 2 node cluster of Cassandra
Hi Prakrati, In an ideal situation, no data should be lost when a node is added. How are you getting the statistics below. The output below looks like its from some code using Hector or Thrift..is the code to get statistics from a 1 node cluster or 2 exactly the same- with the only change being a node being added or removed? Could you verify the number of rows & cols in the column family using CLI or CQL.. Regards, Roshni From: Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Reply-To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" mailto:user@cassandra.apache.org>> Date: Friday 8 June 2012 11:50 AM To: "user@cassandra.apache.org<mailto:user@cassandra.apache.org>" mailto:user@cassandra.apache.org>> Subject: Problem in getting data from a 2 node cluster of Cassandra Dear all I was originally having a 1 node cluster. Then I added one more node to it with initial token configured appropriately. Now when I run my queries I am not getting all my data ie all columns. Output on 2 nodes Time taken to retrieve columns 43707 of key range is 1276 Time taken to retrieve columns 2084199 of all tickers is 54334 Time taken to count is 230776 Total number of rows in the database are 183 Total number of columns in the database are 7903753 Output on 1 node Time taken to retrieve columns 43707 of key range is 767 Time taken to retrieve columns 382 of all tickers is 52793 Time taken to count is 268135 Total number of rows in the database are 396 Total number of columns in the database are 16316426 Please help me. Where is my data going or how should I retrieve it. I have consistency level specified as ONE and I did not specify any replication factor. Prakrati Agrawal | Developer - Big Data(I&D)| 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. This email and any files transmitted with it are confidential and intended solely for the individual or entity to whom they are addressed. If you have received this email in error destroy it immediately. *** Walmart Confidential ***
Problem in getting data from a 2 node cluster of Cassandra
Dear all I was originally having a 1 node cluster. Then I added one more node to it with initial token configured appropriately. Now when I run my queries I am not getting all my data ie all columns. Output on 2 nodes Time taken to retrieve columns 43707 of key range is 1276 Time taken to retrieve columns 2084199 of all tickers is 54334 Time taken to count is 230776 Total number of rows in the database are 183 Total number of columns in the database are 7903753 Output on 1 node Time taken to retrieve columns 43707 of key range is 767 Time taken to retrieve columns 382 of all tickers is 52793 Time taken to count is 268135 Total number of rows in the database are 396 Total number of columns in the database are 16316426 Please help me. Where is my data going or how should I retrieve it. I have consistency level specified as ONE and I did not specify any replication factor. Prakrati Agrawal | Developer - Big Data(I&D)| 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: Problem in getting data from a 2 node cluster
What is the default replication factor? I did not set any replication factor. Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com -Original Message- From: Tim Wintle [mailto:timwin...@gmail.com] Sent: Wednesday, June 06, 2012 5:42 PM To: user@cassandra.apache.org Subject: RE: Problem in getting data from a 2 node cluster On Wed, 2012-06-06 at 06:54 -0500, Prakrati Agrawal wrote: > This node will not auto bootstrap because it is configured to be a > seed node This means the cassandra.yaml on that node references itself as a seed node. After you decommission the second node, can you still access the entire dataset in the single node cluser, or has it been lost along the way? What is the replication factor for your data? Tim Wintle 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: Problem in getting data from a 2 node cluster
On Wed, 2012-06-06 at 06:54 -0500, Prakrati Agrawal wrote: > This node will not auto bootstrap because it is configured to be a > seed node This means the cassandra.yaml on that node references itself as a seed node. After you decommission the second node, can you still access the entire dataset in the single node cluser, or has it been lost along the way? What is the replication factor for your data? Tim Wintle
RE: Problem in getting data from a 2 node cluster
I will repeat my query once again: I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also The things I already tried are: 1. Used CassandraHostConfigurator - Still same issue 2. Used nodetool repair on both the nodes - Still same issue Please help me out. I am badly stuck Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com] Sent: Wednesday, June 06, 2012 4:41 PM To: user@cassandra.apache.org Subject: RE: Problem in getting data from a 2 node cluster I even used CassandraHostConfigurator and added a string of hosts but still the same issue. Please someone help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com] Sent: Wednesday, June 06, 2012 4:04 PM To: user@cassandra.apache.org Subject: RE: Problem in getting data from a 2 node cluster Yes I ran nodetool repair also. Still the same problem I am getting lesser data when using my code on a 2 node cluster. Please help me Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nl] Sent: Wednesday, June 06, 2012 4:01 PM To: user@cassandra.apache.org Subject: Re: Problem in getting data from a 2 node cluster Repair ensures that all data is consistent and available on the node. 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> When I run the nodetool command I get the following information ./nodetool -h localhost ring Address DC RackStatus State Load Effective-Owership Token 85070591730234615865843651857942052864 162.192.100.16 datacenter1 rack1 Up Normal 238.22 MB 50.00% 0 162.192.100.48 datacenter1 rack1 Up Normal 115.6 MB50.00% 85070591730234615865843651857942052864 Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://www.mu-sigma.com> From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com<mailto:prakrati.agra...@mu-sigma.com>] Sent: Wednesday, June 06, 2012 3:55 PM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: RE: Problem in getting data from a 2 node cluster What does repair do? Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://www.mu-sigma.com> From: R. Verlangen [mailto:ro...@us2.nl<mailto:ro...@us2.nl>] Sent: Wednesday, June 06, 2012 3:56 PM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: Problem in getting data from a 2 node cluster Did you run repair on the new node? 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Dear all, I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also Thanks and Regards Prakrati Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://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 http://www.robinverlangen.nl E ro...@us2.nl<mailto:ro...@us2.nl>
RE: Problem in getting data from a 2 node cluster
I even used CassandraHostConfigurator and added a string of hosts but still the same issue. Please someone help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com] Sent: Wednesday, June 06, 2012 4:04 PM To: user@cassandra.apache.org Subject: RE: Problem in getting data from a 2 node cluster Yes I ran nodetool repair also. Still the same problem I am getting lesser data when using my code on a 2 node cluster. Please help me Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nl] Sent: Wednesday, June 06, 2012 4:01 PM To: user@cassandra.apache.org Subject: Re: Problem in getting data from a 2 node cluster Repair ensures that all data is consistent and available on the node. 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> When I run the nodetool command I get the following information ./nodetool -h localhost ring Address DC RackStatus State Load Effective-Owership Token 85070591730234615865843651857942052864 162.192.100.16 datacenter1 rack1 Up Normal 238.22 MB 50.00% 0 162.192.100.48 datacenter1 rack1 Up Normal 115.6 MB50.00% 85070591730234615865843651857942052864 Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://www.mu-sigma.com> From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com<mailto:prakrati.agra...@mu-sigma.com>] Sent: Wednesday, June 06, 2012 3:55 PM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: RE: Problem in getting data from a 2 node cluster What does repair do? Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://www.mu-sigma.com> From: R. Verlangen [mailto:ro...@us2.nl<mailto:ro...@us2.nl>] Sent: Wednesday, June 06, 2012 3:56 PM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: Problem in getting data from a 2 node cluster Did you run repair on the new node? 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Dear all, I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also Thanks and Regards Prakrati Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://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 http://www.robinverlangen.nl E ro...@us2.nl<mailto: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 m
RE: Problem in getting data from a 2 node cluster
Yes I ran nodetool repair also. Still the same problem I am getting lesser data when using my code on a 2 node cluster. Please help me Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nl] Sent: Wednesday, June 06, 2012 4:01 PM To: user@cassandra.apache.org Subject: Re: Problem in getting data from a 2 node cluster Repair ensures that all data is consistent and available on the node. 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> When I run the nodetool command I get the following information ./nodetool -h localhost ring Address DC RackStatus State Load Effective-Owership Token 85070591730234615865843651857942052864 162.192.100.16 datacenter1 rack1 Up Normal 238.22 MB 50.00% 0 162.192.100.48 datacenter1 rack1 Up Normal 115.6 MB50.00% 85070591730234615865843651857942052864 Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://www.mu-sigma.com> From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com<mailto:prakrati.agra...@mu-sigma.com>] Sent: Wednesday, June 06, 2012 3:55 PM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: RE: Problem in getting data from a 2 node cluster What does repair do? Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://www.mu-sigma.com> From: R. Verlangen [mailto:ro...@us2.nl<mailto:ro...@us2.nl>] Sent: Wednesday, June 06, 2012 3:56 PM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: Problem in getting data from a 2 node cluster Did you run repair on the new node? 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Dear all, I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also Thanks and Regards Prakrati Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://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 http://www.robinverlangen.nl E ro...@us2.nl<mailto: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. This email message may contain proprietary, private
Re: Problem in getting data from a 2 node cluster
Repair ensures that all data is consistent and available on the node. 2012/6/6 Prakrati Agrawal > When I run the nodetool command I get the following information > > ./nodetool -h localhost ring > > Address DC RackStatus State Load > Effective-Owership Token > > > > 85070591730234615865843651857942052864 > > > 162.192.100.16 datacenter1 rack1 Up Normal 238.22 MB > 50.00% 0 > > 162.192.100.48 datacenter1 rack1 Up Normal 115.6 MB > 50.00% 85070591730234615865843651857942052864 > > ** ** > > Please help me > > ** ** > > Thanks and Regards > > ** ** > > Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | > www.mu-sigma.com > > ** ** > > *From:* Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com] > *Sent:* Wednesday, June 06, 2012 3:55 PM > *To:* user@cassandra.apache.org > *Subject:* RE: Problem in getting data from a 2 node cluster > > ** ** > > What does repair do? > > ** ** > > Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | > www.mu-sigma.com > > ** ** > > *From:* R. Verlangen [mailto:ro...@us2.nl] > *Sent:* Wednesday, June 06, 2012 3:56 PM > *To:* user@cassandra.apache.org > *Subject:* Re: Problem in getting data from a 2 node cluster > > ** ** > > Did you run repair on the new node? > > 2012/6/6 Prakrati Agrawal > > Dear all, > > > > I had a 1 node cluster. Then I added 1 more node to it. > > When I ran my query on 1 node cluster I got all my data but when I ran my > query on the 2 node cluster (Hector code) I am not getting the same data. > > > How do I ensure that my Hector code retrieves data from all the nodes. *** > * > > > > Also when I decommission my node and then add it again I get the following > message. > > This node will not auto bootstrap because it is configured to be a seed > node > > Please tell me the meaning of it also > > > > Thanks and Regards > > Prakrati > > > > Prakrati Agrawal | Developer - Big Data(I&D)| 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 http://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 vi
RE: Problem in getting data from a 2 node cluster
When I run the nodetool command I get the following information ./nodetool -h localhost ring Address DC RackStatus State Load Effective-Owership Token 85070591730234615865843651857942052864 162.192.100.16 datacenter1 rack1 Up Normal 238.22 MB 50.00% 0 162.192.100.48 datacenter1 rack1 Up Normal 115.6 MB50.00% 85070591730234615865843651857942052864 Please help me Thanks and Regards Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: Prakrati Agrawal [mailto:prakrati.agra...@mu-sigma.com] Sent: Wednesday, June 06, 2012 3:55 PM To: user@cassandra.apache.org Subject: RE: Problem in getting data from a 2 node cluster What does repair do? Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nl] Sent: Wednesday, June 06, 2012 3:56 PM To: user@cassandra.apache.org Subject: Re: Problem in getting data from a 2 node cluster Did you run repair on the new node? 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Dear all, I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also Thanks and Regards Prakrati Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://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 http://www.robinverlangen.nl E ro...@us2.nl<mailto: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. 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: Problem in getting data from a 2 node cluster
What does repair do? Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com From: R. Verlangen [mailto:ro...@us2.nl] Sent: Wednesday, June 06, 2012 3:56 PM To: user@cassandra.apache.org Subject: Re: Problem in getting data from a 2 node cluster Did you run repair on the new node? 2012/6/6 Prakrati Agrawal mailto:prakrati.agra...@mu-sigma.com>> Dear all, I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also Thanks and Regards Prakrati Prakrati Agrawal | Developer - Big Data(I&D)| 9731648376 | www.mu-sigma.com<http://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 http://www.robinverlangen.nl E ro...@us2.nl<mailto: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: Problem in getting data from a 2 node cluster
Did you run repair on the new node? 2012/6/6 Prakrati Agrawal > Dear all, > > ** ** > > I had a 1 node cluster. Then I added 1 more node to it. ** ** > > When I ran my query on 1 node cluster I got all my data but when I ran my > query on the 2 node cluster (Hector code) I am not getting the same data. > > > How do I ensure that my Hector code retrieves data from all the nodes. *** > * > > ** ** > > Also when I decommission my node and then add it again I get the following > message. > > This node will not auto bootstrap because it is configured to be a seed > node > > Please tell me the meaning of it also > > ** ** > > Thanks and Regards > > Prakrati > > ** ** > > Prakrati Agrawal | Developer - Big Data(I&D)| 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 http://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.
Problem in getting data from a 2 node cluster
Dear all, I had a 1 node cluster. Then I added 1 more node to it. When I ran my query on 1 node cluster I got all my data but when I ran my query on the 2 node cluster (Hector code) I am not getting the same data. How do I ensure that my Hector code retrieves data from all the nodes. Also when I decommission my node and then add it again I get the following message. This node will not auto bootstrap because it is configured to be a seed node Please tell me the meaning of it also Thanks and Regards Prakrati Prakrati Agrawal | Developer - Big Data(I&D)| 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.
