Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 3CF3B200B9A for ; Fri, 7 Oct 2016 14:28:24 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 3B8CD160AD6; Fri, 7 Oct 2016 12:28:24 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 30EF7160AE8 for ; Fri, 7 Oct 2016 14:28:23 +0200 (CEST) Received: (qmail 72925 invoked by uid 500); 7 Oct 2016 12:28:22 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 72903 invoked by uid 99); 7 Oct 2016 12:28:22 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 07 Oct 2016 12:28:22 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id E67342C0B04 for ; Fri, 7 Oct 2016 12:28:21 +0000 (UTC) Date: Fri, 7 Oct 2016 12:28:21 +0000 (UTC) From: "Andreas Wederbrand (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Comment Edited] (CASSANDRA-12756) Duplicate (cql)rows for the same primary key MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Fri, 07 Oct 2016 12:28:24 -0000 [ https://issues.apache.org/jira/browse/CASSANDRA-12756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15554964#comment-15554964 ] Andreas Wederbrand edited comment on CASSANDRA-12756 at 10/7/16 12:27 PM: -------------------------------------------------------------------------- You are correct. * created a docker container running 3.7 * added a keyspace and table using the correct ddl * added the sstables to the correct directory * ran nodetool refresh * started cqlsh, this is the result: {code title=cqlsh output|borderStyle=solid} cqlsh> select * from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time = '2016-08-10 20:23:28'; installation_id | node_id | time_bucket | gateway_time | humidity | temperature -----------------+----------+-------------+---------------------------------+----------+--------------- 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} (3 rows) cqlsh> delete from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time = '2016-08-10 20:23:28'; cqlsh> select * from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time = '2016-08-10 20:23:28'; installation_id | node_id | time_bucket | gateway_time | humidity | temperature -----------------+----------+-------------+---------------------------------+----------+--------------- 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} (2 rows) {code} was (Author: wederbrand): You are correct. * created a docker container running 3.7 * added a keyspace and table using the correct ddl * added the sstables to the correct directory * ran nodetool refresh * started cqlsh, this is the result: {codetitle=cqlsh output|borderStyle=solid} cqlsh> select * from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time = '2016-08-10 20:23:28'; installation_id | node_id | time_bucket | gateway_time | humidity | temperature -----------------+----------+-------------+---------------------------------+----------+--------------- 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} (3 rows) cqlsh> delete from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time = '2016-08-10 20:23:28'; cqlsh> select * from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time = '2016-08-10 20:23:28'; installation_id | node_id | time_bucket | gateway_time | humidity | temperature -----------------+----------+-------------+---------------------------------+----------+--------------- 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} 133235 | 35453983 | 189 | 2016-08-10 20:23:28.000000+0000 | {0: 51} | {0: 24.37891} (2 rows) {code} > Duplicate (cql)rows for the same primary key > -------------------------------------------- > > Key: CASSANDRA-12756 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12756 > Project: Cassandra > Issue Type: Bug > Components: Compaction, CQL > Environment: Linux, Cassandra 3.7 (upgraded at one point from 2.?). > Reporter: Andreas Wederbrand > Priority: Minor > > I observe what looks like duplicates when I run cql queries against a table. It only show for rows written during a couple of hours on a specific date but it shows for several partions and serveral clustering keys for each partition during that time range. > We've loaded data in two ways. > 1) through a normal insert > 2) through sstableloader with sstables created using update-statements (to append to the map) and an older version of SSTableWriter. During this processes several months of data was re-loaded. > The table DDL is > {code:title=create statement|borderStyle=solid} > CREATE TABLE climate.climate_1510 ( > installation_id bigint, > node_id bigint, > time_bucket int, > gateway_time timestamp, > humidity map, > temperature map, > PRIMARY KEY ((installation_id, node_id, time_bucket), gateway_time) > ) WITH CLUSTERING ORDER BY (gateway_time DESC) > AND bloom_filter_fp_chance = 0.01 > AND caching = {'keys': 'ALL', 'rows_per_partition': 'NONE'} > AND comment = '' > AND compaction = {'class': 'org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy', 'max_threshold': '32', 'min_threshold': '4'} > AND compression = {'chunk_length_in_kb': '64', 'class': 'org.apache.cassandra.io.compress.LZ4Compressor'} > AND crc_check_chance = 1.0 > AND dclocal_read_repair_chance = 0.1 > AND default_time_to_live = 0 > AND gc_grace_seconds = 864000 > AND max_index_interval = 2048 > AND memtable_flush_period_in_ms = 0 > AND min_index_interval = 128 > AND read_repair_chance = 0.0 > AND speculative_retry = '99PERCENTILE'; > {code} > and the result from the SELECT is > {code:title=cql output|borderStyle=solid} > > select * from climate.climate_1510 where installation_id = 133235 and node_id = 35453983 and time_bucket = 189 and gateway_time > '2016-08-10 20:00:00' and gateway_time < '2016-08-10 21:00:00' ; > installation_id | node_id | time_bucket | gateway_time | humidity | temperature > -----------------+----------+-------------+--------------------------+----------+--------------- > 133235 | 35453983 | 189 | 20160810 20:23:28.000000 | {0: 51} | {0: 24.37891} > 133235 | 35453983 | 189 | 20160810 20:23:28.000000 | {0: 51} | {0: 24.37891} > 133235 | 35453983 | 189 | 20160810 20:23:28.000000 | {0: 51} | {0: 24.37891} > {code} > I've used Andrew Tolbert's sstable-tools to be able to dump the json for this specific time and this is what I find. > {code:title=json dump|borderStyle=solid} > [133235:35453983:189] Row[info=[ts=1470878906618000] ]: gateway_time=2016-08-10 22:23+0200 | del(humidity)=deletedAt=1470878906617999, localDeletion=1470878906, [humidity[0]=51.0 ts=1470878906618000], del(temperature)=deletedAt=1470878906617999, localDeletion=1470878906, [temperature[0]=24.378906 ts=1470878906618000] > [133235:35453983:189] Row[info=[ts=-9223372036854775808] del=deletedAt=1470864506441999, localDeletion=1470864506 ]: gateway_time=2016-08-10 22:23+0200 | , [humidity[0]=51.0 ts=1470878906618000], , [temperature[0]=24.378906 ts=1470878906618000] > [133235:35453983:189] Row[info=[ts=-9223372036854775808] del=deletedAt=1470868106489000, localDeletion=1470868106 ]: gateway_time=2016-08-10 22:23+0200 | > [133235:35453983:189] Row[info=[ts=-9223372036854775808] del=deletedAt=1470871706530999, localDeletion=1470871706 ]: gateway_time=2016-08-10 22:23+0200 | > [133235:35453983:189] Row[info=[ts=-9223372036854775808] del=deletedAt=1470878906617999, localDeletion=1470878906 ]: gateway_time=2016-08-10 22:23+0200 | , [humidity[0]=51.0 ts=1470878906618000], , [temperature[0]=24.378906 ts=1470878906618000] > {code} > From my understanding this should be impossible. Even if we have duplicates in the sstables (which is normal) it should be filtered away before being returned to the client. > I'm happy to add details to this bug if anything is missing. -- This message was sent by Atlassian JIRA (v6.3.4#6332)