Hello, I'm upgrade oVirt from 4.3.10.4 to 4.4.10.7-1 The update was successful, but I noticed that a couple of days before the update, the "samples" tables stopped clearing. DWH is configured in Basic cat /etc/ovirt-engine-dwh/ovirt-engine-dwhd.conf.d/10-setup-scale.conf DWH_TABLES_KEEP_SAMPLES=24 DWH_TABLES_KEEP_HOURLY=720 DWH_TABLES_KEEP_DAILY=0 cat /var/log/ovirt-engine-dwh/ovirt-engine-dwhd.log ... 2022-08-22 15:13:41|ETL Service Started ovirtEngineDbDriverClass|org.postgresql.Driver ovirtEngineHistoryDbJdbcConnection|jdbc:postgresql://localhost:5432/ovirt_engine_history?sslfactory=org.postgresql.ssl.NonValidatingFactory hoursToKeepDaily|0 hoursToKeepHourly|720 ovirtEngineDbPassword|********************** runDeleteTime|3 ovirtEngineDbJdbcConnection|jdbc:postgresql://localhost:5432/engine?sslfactory=org.postgresql.ssl.NonValidatingFactory runInterleave|60 limitRows|limit 1000 ovirtEngineHistoryDbUser|ovirt_engine_history ovirtEngineDbUser|engine deleteIncrement|10 timeBetweenErrorEvents|300000 hoursToKeepSamples|24 deleteMultiplier|1000 lastErrorSent|2011-07-03 12:46:47.000000 etlVersion|4.4.10 dwhAggregationDebug|true ... 2022-08-22 15:00:00|lxnXpZ|fKyuLo|lvrfJZ|130277|OVIRT_ENGINE_DWH|SampleTimeKeepingJob|_FvEy8LzqEeCaj-T1n0SCFw|4.4|Default||begin|| 2022-08-22 15:00:00 Statistics sync ended. Duration: 394 milliseconds 2022-08-22 15:00:00 Aggregation to Hourly ended. 2022-08-22 15:01:00|lxnXpZ|fKyuLo|lvrfJZ|130277|OVIRT_ENGINE_DWH|SampleTimeKeepingJob|_FvEy8LzqEeCaj-T1n0SCFw|4.4|Default||end|success|60000 2022-08-22 15:01:00|9mBhki|fKyuLo|lvrfJZ|130277|OVIRT_ENGINE_DWH|SampleTimeKeepingJob|_FvEy8LzqEeCaj-T1n0SCFw|4.4|Default||begin|| ... # select * from history_configuration; var_name | var_value | var_datetime -------------------+-----------+------------------------ default_language | en_US | firstSync | false | 2016-12-17 07:35:00+03 lastDayAggr | | 2022-08-18 01:00:00+03 MinimalETLVersion | 4.4.7 | lastHourAggr | | 2022-08-22 15:00:00+03 HourlyAggFailed | false | # select min(history_datetime),max(history_datetime) from public.host_samples_history; min | max ----------------------------+-------------------------- 2022-08-17 03:09:31.797+03 | 2022-08-22 18:43:00.1+03 # select min(history_datetime),max(history_datetime) from public.host_hourly_history; min | max ------------------------+------------------------ 2022-07-19 04:00:00+03 | 2022-08-22 16:00:00+03 # select min(history_datetime),max(history_datetime) from public.host_daily_history; min | max ------------+------------ 2022-08-17 | 2022-08-18 I tried сonfigгку the start time with DWH_DELETE_JOB_HOUR (UTC), but there was no result. By enabling DWH_AGGREGATION_DEBUG=true According to the logs, aggregation is on the clock, but cleaning doesn't start... I would delete the data manually, but I'm not worried about data relatedness.