I will disable read repair for slice requests fully (we can handle those on the application side) until we upgrade to 1.0.8.
Thanks, Thibaut On Wed, Apr 11, 2012 at 7:04 PM, Jeremy Hanna <jeremy.hanna1...@gmail.com>wrote: > I backported this to 0.8.4 and it didn't fix the problem we were seeing > (as I outlined in my parallel post) but if it fixes it for you, then > beautiful. Just wanted to let you know our experience with similar > symptoms. > > On Apr 11, 2012, at 11:56 AM, Thibaut Britz wrote: > > > 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 > > > > > > > >
