Re: Cassandra upgrade from 2.1 to 3.0

2018-05-14 Thread kooljava2
We are using datstax java driver  1.5.0 Thank you. On Saturday, 12 May 2018, 10:37:04 GMT-7, Jeff Jirsa wrote: I haven't seen this before, but I have a guess. What client/driver are you using? Are you using a prepared statement that has every column listed for the update, and leaving

Re: Cassandra upgrade from 2.1 to 3.0

2018-05-12 Thread Jeff Jirsa
I haven't seen this before, but I have a guess. What client/driver are you using? Are you using a prepared statement that has every column listed for the update, and leaving the un-set columns as null? If so, the null is being translated into a delete, which is clearly not what you want. The dif

Re: Cassandra upgrade from 2.1 to 3.0

2018-05-11 Thread kooljava2
After further analyzing the data. I see some pattern. The rows which were updated in last 2-3 weeks, the column which were not part of this update have the null values.  Has anyone encountered this issue during the upgrade? Thank you, On Thursday, 10 May 2018, 19:49:50 GMT-7, kooljava2

Re: Cassandra upgrade from 2.1 to 3.0

2018-05-10 Thread kooljava2
Hello Jeff, 2.1.19 to 3.0.15. Thank you. On Thursday, 10 May 2018, 17:43:58 GMT-7, Jeff Jirsa wrote: Which minor version of 3.0 -- Jeff Jirsa On May 11, 2018, at 2:54 AM, kooljava2 wrote: Hello, Upgraded Cassandra 2.1 to 3.0.  We see certain data in few columns being set to "n

Re: Cassandra upgrade from 2.1 to 3.0

2018-05-10 Thread Jeff Jirsa
Which minor version of 3.0 -- Jeff Jirsa > On May 11, 2018, at 2:54 AM, kooljava2 wrote: > > > Hello, > > Upgraded Cassandra 2.1 to 3.0. We see certain data in few columns being set > to "null". These null columns were created during the row creation time. > > After looking at the data s

Cassandra upgrade from 2.1 to 3.0

2018-05-10 Thread kooljava2
Hello, Upgraded Cassandra 2.1 to 3.0.  We see certain data in few columns being set to "null". These null columns were created during the row creation time. After looking at the data see a pattern where update was done on these rows. Rows which were updated has data but rows which were not par