Re: Re : pb deletion
You're using a lower timestamp granularity in your app. The standard is to use microseconds (not milliseconds!) since epoch. The cli and any of the mainstream clients adhere to this. On Tue, May 31, 2011 at 4:21 AM, karim abbouh wrote: > i see that the problem happens when i try to remove records from my > application but these records were created before from CLI. > is there a explication for this? > > > De : Peter Schuller > À : user@cassandra.apache.org > Envoyé le : Vendredi 27 Mai 2011 19h05 > Objet : Re: pb deletion > >> i use cassandra database replicated in two servers,when want to delete a >> record using this line : >> client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp, >> ConsistencyLevel.ONE); >> >> but when i check,i see that the record still exist! > > Are you using a "real" timestamp such that the deletion is stamped > higher than the insertion? > > -- > / Peter Schuller > > > -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of DataStax, the source for professional Cassandra support http://www.datastax.com
Re : pb deletion
i see that the problem happens when i try to remove records from my application but these records were created before from CLI. is there a explication for this? De : Peter Schuller À : user@cassandra.apache.org Envoyé le : Vendredi 27 Mai 2011 19h05 Objet : Re: pb deletion > i use cassandra database replicated in two servers,when want to delete a > record using this line : > client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp, > ConsistencyLevel.ONE); > > but when i check,i see that the record still exist! Are you using a "real" timestamp such that the deletion is stamped higher than the insertion? -- / Peter Schuller
Re: pb deletion
> i use cassandra database replicated in two servers,when want to delete a > record using this line : > client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp, > ConsistencyLevel.ONE); > > but when i check,i see that the record still exist! Are you using a "real" timestamp such that the deletion is stamped higher than the insertion? -- / Peter Schuller
Re: pb deletion
What is the ConsitencyLevel of your reads? A ConsistencyLevel.ONE remove returns when it has deleted the record from at least 1 replica (and any other ones will be deleted when they can). It could be the case that you are deleting the record off of one node and then reading it off of the other one (that has not had the delete propagated to it). Try removing with a ConsistencyLevel.QUORUM or ConsistencyLevel.ALL (same thing in your case). - Original Message - From: "karim abbouh" To: user@cassandra.apache.org Sent: Friday, May 27, 2011 5:09:08 PM Subject: pb deletion i use cassandra database replicated in two servers,when want to delete a record using this line : client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp, ConsistencyLevel.ONE); but when i check,i see that the record still exist! any idea BR
pb deletion
i use cassandra database replicated in two servers,when want to delete a record using this line : client.remove(keyspace, sKey, new ColumnPath(columnFamily), timestamp, ConsistencyLevel.ONE); but when i check,i see that the record still exist! any idea BR
