Perhaps you're seeing this: https://issues.apache.org/jira/browse/CASSANDRA-6178
TL;DR: rapid deletes and inserts of the same key may use the same timestamp, in which case the delete wins. Specifying the timestamp explicitly in the CQL query is a good workaround. Alternatively, other drivers which have better timestamp precision (Java only has millisecond precision before Java 8) and can use the v3 protocol (Cassandra 2.1+) can automatically provide better client-side timestamps. On Wed, Sep 17, 2014 at 2:59 PM, Sávio S. Teles de Oliveira < savio.te...@cuia.com.br> wrote: > Philip, I'm not using "IF NOT EXISTS" on insert command. > > 2014-09-17 16:51 GMT-03:00 Sávio S. Teles de Oliveira < > savio.te...@cuia.com.br>: > > The clocks are synced. >> >> Could you be experiencing >>> https://issues.apache.org/jira/browse/CASSANDRA-7801 ? >> >> >> Yes, its similar Philip. How can I solve this problem? >> >> 2014-09-17 16:16 GMT-03:00 Philip Thompson <philip.thomp...@datastax.com> >> : >> >> Could you be experiencing >>> https://issues.apache.org/jira/browse/CASSANDRA-7801 ? >>> >>> On Wed, Sep 17, 2014 at 2:09 PM, Jonathan Haddad <j...@jonhaddad.com> >>> wrote: >>> >>>> Make sure your clocks are synced. If they aren't, the writetime that >>>> determines the most recent value will be incorrect. >>>> >>>> On Wed, Sep 17, 2014 at 11:58 AM, Robert Coli <rc...@eventbrite.com> >>>> wrote: >>>> > On Wed, Sep 17, 2014 at 11:55 AM, Sávio S. Teles de Oliveira >>>> > <savio.te...@cuia.com.br> wrote: >>>> >> >>>> >> I'm using the Cassandra 2.0.9 with JAVA datastax driver. >>>> >> I'm running the tests in a cluster with 3 nodes, RF=3 and CL=ALL for >>>> each >>>> >> operation. >>>> >> >>>> >> I have a Column family filled with some keys (for example 'a' and >>>> 'b'). >>>> >> When this keys are deleted and inserted hereafter, sporadically this >>>> keys >>>> >> disappear. >>>> >> >>>> >> Is it a bug on Cassandra or on Datastax driver? >>>> >> Any suggestions? >>>> > >>>> > >>>> > I would file a Cassandra JIRA with reproduction steps. >>>> > >>>> > http://issues.apache.org >>>> > >>>> > =Rob >>>> > http://twitter.com/rcolidba >>>> >>>> >>>> >>>> -- >>>> Jon Haddad >>>> http://www.rustyrazorblade.com >>>> twitter: rustyrazorblade >>>> >>> >>> >> >> >> -- >> Sávio Salvarino Teles de Oliveira >> voice: +55 62 9136 6996 >> http://br.linkedin.com/in/savioteles >> Master in Computer Science at Federal University of Goiás >> Software Analyst at GoGeo >> http://www.gogeo.io/ >> > > > > -- > Sávio Salvarino Teles de Oliveira > voice: +55 62 9136 6996 > http://br.linkedin.com/in/savioteles > Master in Computer Science at Federal University of Goiás > Software Analyst at GoGeo > http://www.gogeo.io/ > -- Tyler Hobbs DataStax <http://datastax.com/>
