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Maor Cohen edited comment on CASSANDRA-10801 at 12/21/15 3:02 PM: ------------------------------------------------------------------ We started with write ONE and read ONE. Then we changed write ONE and read ALL, write ALL and read ONE but records were still missing. Currently the setting is read and write in QUORUM consistency. Reloading to table with different name is an option but we want to try other things before going in this direction. was (Author: maor.cohen): We started with write ONE and read ONE. Then we changed write ONE and read ALL, write ALL and read ONE but records were still missing. Currently the setting is read and write in QUORUM consistency. Reloading to table with different name is an option but we want to try other things before we going in this direction. > Unexplained inconsistent data with Cassandra 2.1 > ------------------------------------------------ > > Key: CASSANDRA-10801 > URL: https://issues.apache.org/jira/browse/CASSANDRA-10801 > Project: Cassandra > Issue Type: Bug > Reporter: Imri Zvik > Fix For: 2.1.x > > Attachments: trace2.log, tracing.log > > > We are experiencing weird behavior which we cannot explain. > We have a CF, with RF=3, and we are writing and reading data to it with > consistency level of ONE. > For some reason, we see inconsistent results when querying for data. > Even for rows that were written a day ago, we're seeing inconsistent results > (1 replca has the data, the two others don't). > Now, I would expect to see timeouts/dropped mutations, but all relevant > counters are not advancing, and I would also expect hints to fix this > inconsistency within minutes, but yet it doesn't. > {code} > cqlsh:testing> SELECT WRITETIME(last_update),site_id, tree_id, individual_id, > last_update FROM testcf WHERE site_id = 229673621 AND tree_id = 9 AND > individual_id = 9032483; > writetime(last_update) | site_id | tree_id | individual_id | last_update > ------------------------+-----------+---------+---------------+------------- > 1448988343028000 | 229673621 | 9 | 9032483 | 1380912397 > (1 rows) > cqlsh:testing> SELECT WRITETIME(last_update),site_id, tree_id, individual_id, > last_update FROM testcf WHERE site_id = 229673621 AND tree_id = 9 AND > individual_id = 9032483; > site_id | tree_id | individual_id | last_update > -----------+---------+---------------+------------- > (0 rows) > cqlsh:testing> SELECT dateof(now()) FROM system.local ; > dateof(now()) > -------------------------- > 2015-12-02 14:48:44+0000 > (1 rows) > {code} > We are running with Cassandra 2.1.11 with Oracle Java 1.8.0_65-b17 -- This message was sent by Atlassian JIRA (v6.3.4#6332)