All servers are running ntpd. I guess the time should be synced across all servers.
My dataset is too large to use sstable2json. It would take long time. I will try to repair to see if the issue is gone. On Tue, Mar 31, 2015 at 7:49 AM, Ken Hancock <ken.hanc...@schange.com> wrote: > Have you checked time sync across all servers? The fact that you've > changed consistency levels and you're getting different results may > indicate something inherently wrong with the cluster such as writes being > dropped or time differences between the nodes. > > A brute-force approach to better understand what's going on (especially if > you have an example of the wrong data being returned) is to do a > sstable2json on all your tables and simply grep for an example key. > > On Mon, Mar 30, 2015 at 4:39 PM, Benyi Wang <bewang.t...@gmail.com> wrote: > >> Thanks for replying. >> >> In cqlsh, if I change to Quorum (Consistency quorum), sometime the select >> return the deleted row, sometime not. >> >> I have two virtual data centers: service (3 nodes) and analytics(4 nodes >> collocate with Hadoop data nodes).The table has 3 replicas in service and 2 >> in analytics. When I wrote, I wrote into analytics using local_one. So I >> guest the data may not replicated to all nodes yet. >> >> I will try to use strong consistency for write. >> >> >> >> On Mon, Mar 30, 2015 at 11:59 AM, Prem Yadav <ipremya...@gmail.com> >> wrote: >> >>> Increase the read CL to quorum and you should get correct results. >>> How many nodes do you have in the cluster and what is the replication >>> factor for the keyspace? >>> >>> On Mon, Mar 30, 2015 at 7:41 PM, Benyi Wang <bewang.t...@gmail.com> >>> wrote: >>> >>>> Create table tomb_test ( >>>> guid text, >>>> content text, >>>> range text, >>>> rank int, >>>> id text, >>>> cnt int >>>> primary key (guid, content, range, rank) >>>> ) >>>> >>>> Sometime I delete the rows using cassandra java driver using this query >>>> >>>> DELETE FROM tomb_test WHERE guid=? and content=? and range=? >>>> >>>> in Batch statement with UNLOGGED. CONSISTENCE_LEVEL is local_one. >>>> >>>> But if I run >>>> >>>> SELECT * FROM tomb_test WHERE guid='guid-1' and content='content-1' and >>>> range='week' >>>> or >>>> SELECT * FROM tomb_test WHERE guid='guid-1' and content='content-1' and >>>> range='week' and rank = 1 >>>> >>>> The result shows the deleted rows. >>>> >>>> If I run this select, the deleted rows are not shown >>>> >>>> SELECT * FROM tomb_test WHERE guid='guid-1' and content='content-1' >>>> >>>> If I run delete statement in cqlsh, the deleted rows won't show up. >>>> >>>> How can I fix this? >>>> >>>> >>> >> > > > -- > *Ken Hancock *| System Architect, Advanced Advertising > SeaChange International > 50 Nagog Park > Acton, Massachusetts 01720 > ken.hanc...@schange.com | www.schange.com | NASDAQ:SEAC > <http://www.schange.com/en-US/Company/InvestorRelations.aspx> > Office: +1 (978) 889-3329 | [image: Google Talk:] ken.hanc...@schange.com > | [image: Skype:]hancockks | [image: Yahoo IM:]hancockks[image: LinkedIn] > <http://www.linkedin.com/in/kenhancock> > > [image: SeaChange International] > <http://www.schange.com/>This e-mail and any attachments may contain > information which is SeaChange International confidential. The information > enclosed is intended only for the addressees herein and may not be copied > or forwarded without permission from SeaChange International. >
