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
<[email protected]> wrote:
Hello Jeff,
2.1.19 to 3.0.15.
Thank you.
On Thursday, 10 May 2018, 17:43:58 GMT-7, Jeff Jirsa <[email protected]>
wrote:
Which minor version of 3.0
-- Jeff Jirsa
On May 11, 2018, at 2:54 AM, kooljava2 <[email protected]> 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 see a pattern where update was done on these rows.
Rows which were updated has data but rows which were not part of the update are
set to null.
created_on | created_by | id
---------------------------------+---------------------+-----------------------------------------
null | null |
12345
sstabledump:-
WARN 20:47:38,741 Small cdc volume detected at /var/lib/cassandra/cdc_raw;
setting cdc_total_space_in_mb to 1278. You can override this in cassandra.yaml
[
{
"partition" : {
"key" : [ "12345" ],
"position" : 5155159
},
"rows" : [
{
"type" : "row",
"position" : 5168738,
"deletion_info" : { "marked_deleted" : "2018-03-28T20:38:08.059999Z",
"local_delete_time" : "2018-03-28T20:38:08Z" },
"cells" : [
{ "name" : "doc_type", "value" : false, "tstamp" :
"2018-03-28T20:38:08.060Z" },
{ "name" : "industry", "deletion_info" : { "local_delete_time" :
"2018-03-28T20:38:08Z" },
"tstamp" : "2018-03-28T20:38:08.060Z"
},
{ "name" : "last_modified_by", "value" : "12345", "tstamp" :
"2018-03-28T20:38:08.060Z" },
{ "name" : "last_modified_date", "value" : "2018-03-28
20:38:08.059Z", "tstamp" : "2018-03-28T20:38:08.060Z" },
{ "name" : "locale", "deletion_info" : { "local_delete_time" :
"2018-03-28T20:38:08Z" },
"tstamp" : "2018-03-28T20:38:08.060Z"
},
{ "name" : "postal_code", "deletion_info" : { "local_delete_time" :
"2018-03-28T20:38:08Z" },
"tstamp" : "2018-03-28T20:38:08.060Z"
},
{ "name" : "ticket", "deletion_info" : { "marked_deleted" :
"2018-03-28T20:38:08.059999Z", "local_delete_time" : "2018-03-28T20:38:08Z" } },
{ "name" : "ticket", "path" : [ "TEMP_DATA" ], "value" :
"{\"name\":\"TEMP_DATA\",\"ticket\":\"a42638dae8350e889f2603be1427ac6f5dec5e486d4db164a76bf80820cdf68d635cff5e7d555e6d4eabb9b5b82597b68bec0fcd735fcca\",\"lastRenewedDate\":\"2018-03-28T20:38:08Z\"}",
"tstamp" : "2018-03-28T20:38:08.060Z" },
{ "name" : "ticket", "path" : [ "TEMP_TEMP2" ], "value" :
"{\"name\":\"TEMP_TEMP2\",\"ticket\":\"a4263b7350d1f2683\",\"lastRenewedDate\":\"2018-03-28T20:38:07Z\"}",
"tstamp" : "2018-03-28T20:38:08.060Z" },
{ "name" : "ppstatus_pf", "deletion_info" : { "marked_deleted" :
"2018-03-28T20:38:08.059999Z", "local_delete_time" : "2018-03-28T20:38:08Z" } },
{ "name" : "ppstatus_pers", "deletion_info" : { "marked_deleted" :
"2018-03-28T20:38:08.059999Z", "local_delete_time" : "2018-03-28T20:38:08Z" } }
]
}
]
}
]WARN 20:47:41,325 Small cdc volume detected at /var/lib/cassandra/cdc_raw;
setting cdc_total_space_in_mb to 1278. You can override this in cassandra.yaml
[
{
"partition" : {
"key" : [ "12345" ],
"position" : 18743072
},
"rows" : [
{
"type" : "row",
"position" : 18751808,
"liveness_info" : { "tstamp" : "2017-10-25T10:22:41.612Z" },
"cells" : [
{ "name" : "created_by", "value" : "12345" },
{ "name" : "created_on", "value" : "2017-10-25 10:22:41.637Z" },
{ "name" : "doc_type", "value" : false, "tstamp" :
"2017-10-25T10:22:42.487Z" },
{ "name" : "last_modified_by", "value" : "12345", "tstamp" :
"2017-10-25T10:22:42.487Z" },
{ "name" : "last_modified_date", "value" : "2017-11-10
00:09:52.668Z", "tstamp" : "2017-11-10T00:09:52.668Z" },
{ "name" : "per_type", "value" : "user" },
{ "name" : "lists", "path" : [ "cn.cncn.bpnp" ], "value" :
"[\"::accid:ab\",\"::accid:e1\",\"::accid:d2\",\"::accid:d3\",\"::accid:f3\",\"::accid:g3\",\"::accid:f4\",\"::accid:9c486ae5-00b2-3c63-af70-cff2950c4181\"]",
"tstamp" : "2017-10-25T10:22:42.782Z" },
{ "name" : "ticket", "path" : [ "TEMP_TEMP2" ], "value" :
"{\"name\":\"TEMP_TEMP2\",\"ticket\":\"a4263820be49c3a222e0248532bcefc80c773194a804057561a97382e595b51f36bb46b8675589fc89dea4a5c0ceb944d63861b39d63c0067161e84c79328077c650df33530c7625857444711dc4b1051638123694ba6e9e29b1f906663f3\",\"lastRenewedDate\":\"2017-11-10T00:09:52Z\"}",
"tstamp" : "2017-11-10T00:09:52.668Z" }
]
}
]
}
]
