Please, can you explain details in this two links: https://wiki.apache.org/cassandra/FAQ#large_file_and_blob_storage
2015-03-20 16:58 GMT+01:00 Ali Akhtar <ali.rac...@gmail.com>: > ( I apologize, I'm only joking. To answer your question, Cassandra tends > to cache the first 300MB or so of data in memory, only when it grows beyond > that does it start to write it to files. But, Cassandra is not the write > choice for storing files. In the screenshot you linked, its only storing > the filenames, not the actual contents of the files). > > On Fri, Mar 20, 2015 at 8:54 PM, Ali Akhtar <ali.rac...@gmail.com> wrote: > >> It has been decided that the file cannot be allowed to be stored, sorry. >> However, if a sacrifice to the gods is prepared, it may be possible to >> change things. >> >> On Fri, Mar 20, 2015 at 8:49 PM, jean paul <researche...@gmail.com> >> wrote: >> >>> i'd like to store MyFile.txt using cassandra (replicat = 2) and see on >>> what node the file and its replicas are stored on my cluster of 10 >>> nodes >>> it is a simple file with simple content (text) >>> >>> is that possible ? >>> >>> 2015-03-20 16:44 GMT+01:00 Ali Akhtar <ali.rac...@gmail.com>: >>> >>>> The files you store have to personally be vetted by the cassandra >>>> community. Only if they're found to not contain anything inappropriate, >>>> does cassandra let you store them. (A 3/4 majority vote is necessary). >>>> >>>> Please send your files for approval to j...@reallycereal.com >>>> >>>> On Fri, Mar 20, 2015 at 8:41 PM, jean paul <researche...@gmail.com> >>>> wrote: >>>> >>>>> What about this so >>>>> http://www.datastax.com/wp-content/uploads/2012/02/Screen-Shot-2012-02-10-at-11.21.55-AM.png >>>>> i read also some documents about storing blob with cassandra !! >>>>> >>>>> >>>>> >>>>> 2015-03-20 15:04 GMT+01:00 Michael Dykman <mdyk...@gmail.com>: >>>>> >>>>>> You seem to be missing the point here. >>>>>> >>>>>> Cassandra does not manage files, it manages data in a highly >>>>>> distributed cluster. If you are attempting to manage files, you are >>>>>> quite >>>>>> simply using the wrong tool and Cassandra is not for you. >>>>>> >>>>>> On Fri, Mar 20, 2015 at 9:10 AM, jean paul <researche...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> I have used this tutoriel to create my data base >>>>>>> http://planetcassandra.org/insert-select-records/ >>>>>>> >>>>>>> /var/lib/cassandra/data# ls >>>>>>> demo system system_traces >>>>>>> :/var/lib/cassandra/data# cd demo/ >>>>>>> :/var/lib/cassandra/data/demo# ls >>>>>>> users >>>>>>> :/var/lib/cassandra/data/demo# cd users/ >>>>>>> :/var/lib/cassandra/data/demo/users# ls >>>>>>> :/var/lib/cassandra/data/demo/users# >>>>>>> >>>>>>> i find nothing in /var/lib/cassandra/data/demo/users! >>>>>>> >>>>>>> >>>>>>> 2015-03-20 13:06 GMT+01:00 jean paul <researche...@gmail.com>: >>>>>>> >>>>>>>> Hello All; >>>>>>>> Please, >>>>>>>> i have created this table. >>>>>>>> >>>>>>>> lastname | age | city | email | firstname >>>>>>>> ----------+-----+---------------+---------------------+----------- >>>>>>>> Doe | 36 | Beverly Hills | jane...@email.com | Jane >>>>>>>> Byrne | 24 | San Diego | robby...@email.com | Rob >>>>>>>> Smith | 46 | Sacramento | johnsm...@email.com | John >>>>>>>> >>>>>>>> So, my question, where this data is saved ? in >>>>>>>> ./var/lib/cassandra/data ? >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> My end goal is to store a file with cassandra and to see on which >>>>>>>> node my file is stored ? >>>>>>>> >>>>>>>> thanks a lot for help >>>>>>>> Best Regards. >>>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> - michael dykman >>>>>> - mdyk...@gmail.com >>>>>> >>>>>> May the Source be with you. >>>>>> >>>>> >>>>> >>>> >>> >> >
