Fixed in https://issues.apache.org/jira/browse/CASSANDRA-3843
On Wed, Apr 11, 2012 at 5:58 PM, Thibaut Britz < thibaut.br...@trendiction.com> wrote: > We have read repair disabled (0.0). > > Even if this would be the case, this also doesn't explain why the writes > are executed again and again when going over the same range again and again. > > The keyspace is new, it doesn't contain any thumbstones and only 10000 > keys. > > > > On Wed, Apr 11, 2012 at 5:52 PM, R. Verlangen <ro...@us2.nl> wrote: > >> Are you sure this isn't read-repair? >> http://wiki.apache.org/cassandra/ReadRepair >> >> >> 2012/4/11 Thibaut Britz <thibaut.br...@trendiction.com> >> >>> Also executing the same multiget rangeslice query over the same range >>> again will trigger the same writes again and again. >>> >>> On Wed, Apr 11, 2012 at 5:41 PM, Thibaut Britz < >>> thibaut.br...@trendiction.com> wrote: >>> >>>> Hi, >>>> >>>> I just diagnosted this strange behavior: >>>> >>>> When I fetch a rangeslice through hector and set the consistency level >>>> to quorum, according to cfstats (and also to the output files on the hd), >>>> cassandra seems to execute a write request for each read I execute. The >>>> write count in cfstats is increased when I execute the rangeslice function >>>> over the same range again and again (without saving anything at all). >>>> >>>> If I set the consitency level to ONE, no writes are executed. >>>> >>>> How can I disable this? Why are the records rewritten each time, even >>>> though I don't want them to be rewritten? >>>> >>>> Thanks, >>>> Thibaut. >>>> >>>> >>>> Code: >>>> Keyspace ks = getConnection(cluster, >>>> consistencylevel); >>>> >>>> RangeSlicesQuery<String, String, V> rangeSlicesQuery = >>>> HFactory.createRangeSlicesQuery(ks, StringSerializer.get(), >>>> StringSerializer.get(), s); >>>> >>>> rangeSlicesQuery.setColumnFamily(columnFamily); >>>> rangeSlicesQuery.setColumnNames(column); >>>> >>>> rangeSlicesQuery.setKeys(start, end); >>>> rangeSlicesQuery.setRowCount(maxrows); >>>> >>>> QueryResult<OrderedRows<String, String, V>> result = >>>> rangeSlicesQuery.execute(); >>>> return result.get(); >>>> >>>> >>>> >>>> >>> >> >> >> -- >> With kind regards, >> >> Robin Verlangen >> www.robinverlangen.nl >> >> >
