Slow read performance on hypertable
In brief: SELECT queries on different chunks are slow TimescaleDB version: TimescaleDB 2.12.2 on 2023-10-20 PostgreSQL version: postgresql-15 Other software: OS: linux Platform: aws ec2 i4i.4xlarge,...
View ArticleConstantly high memory usage of managed timescale instances
Hi guys, we are using a managed timescale instance which has constantly high memory usage (~80% of 16GB). Is that something which is expected because of some caching functionality I’m not aware of?...
View ArticleReceived Immediate Shutdown Request in TimescaleDB
Hello, In brief: In Production and Test Setup I am getting immediate shutdown request due to which pgpool also shuts down. I understand the pgpool behaviour as it looks for primary node and when...
View ArticleCreate_hypetable with if_not_exists => true throws error
When I run create_hypertable() using if_not_exists => TRUE in PostgreSQL Version 13.3 and TimescaleDB 2.2.1, I see the expected behavior of warning suppression. When I run the same command in...
View ArticleFirst steps in postgres
Hi to all, I’m new with Timescale and working on creating a table with 60 columns. I’ve included the DDL below, and I’m wondering if there are any best practices I should be aware of or if anyone has...
View ArticleClik here to view.
TSBS result correctness of Timescale
Hi guys, I’m new to tsbs test and was confuse by the test result. I generated an IoT dataset and loaded it into both TimescaleDB and another database. However, the number of data loaded into...
View ArticleClik here to view.
SkipScan doesn't work
TimescaleDB version: 2.9.2: PostgreSQL version: PostgreSQL 15.4: OS: ubuntu: Platform: Hello! We are developing gps monitoring system, and using timescale to store time-series data from our devices,...
View ArticleGIN index performance
Hi, I am using Timescale 2.9.1 on Azure’s Postgres Flex server and am seeing bad performance with a GIN index on a text array column for a seemingly simple query. Here’s the relevant table and index...
View ArticleClik here to view.
It possible to change my db region
i want move my db to singapore 1 post - 1 participant Read full topic
View ArticleIs parameter "--data-checksums" recommended to be turned on?
My system is PostgreSQL 15.5 with TimeScale 2.12.2 on-prem. Command SHOW data_checksums displays “off”. I am reading articles: pro setting: postgres.ai in chapter 7 (2023) pro setting: crunchydata...
View ArticleTruncating of compressed chunk does not update chunk compression stats
Hi! I truncated compressed chunk and then checked the chunk_compression_stats('hypertable') - I saw that chunk still compressed and before/after sizes are present. 1 post - 1 participant Read full topic
View ArticlePerformance of updates on compressed table chunks
Hi All, I’m having a couple of issues with the performance of compressed chunks, maybe my expectations are too high or (hopefully) I’m doing something wrong here. Situation/setup: hypertable with...
View ArticleUnable to restore pg_dump with compressed db
Hello, Using 2.13.0, I am unable to restore a pg_dump of my db It fails at the first chunk with ERROR: null value in column "creation_time" of relation "chunk" violates not-null constraint It was...
View ArticleQ: Units in add_retention_policy() with integer-based timestamps
Hi What are the units when setting the retention with integer-based timestamps? The only example provided in there (link to docs: Timescale Docs ) SELECT add_retention_policy('conditions', BIGINT...
View ArticleIdeal way to create a timescaledb structure
I am planning to move our entire workload to timescale for storing candlesticks. What will be the ideal way to go about this? I have around 60G in data, and the work load is around 2k rps across all...
View ArticleTimescale single helm chart
Hi. i’m tryng out the Timescale-single helm chart: https://github.com/timescale/helm-charts/tree/main/charts/timescaledb-single it looks like this project is not so active, as the last commit is 9...
View ArticleClik here to view.
Timescale DB Hypertable backup and restore
Hi Team, Please let me know how to take the backup and restore of hypertables individually. My version is 2.11.1 I want to copy hyper tables one server to another. I tried below steps....
View ArticleDown sampling data
I am using timescaledb with telegraf. I have a database which is close to 200GB. I am trying to follow this documentation: How to proactively manage long-term data storage with downsampling to see how...
View ArticleMigrate grafana dashboards from InfluxDB datasource to TimescaleDB
Hi, everybody! Have you tried this migration? Is there some suggestion, how to replace InfluxQL function like “non_negative_derivative”, for example query from Telegraf metric “net” SELECT...
View ArticleHelm Chart - Adding a CA
We are migrating form a Zalando based Kubernetes Postgres to a Helm based TimescaleDb deployment in our clusters. We use Teleport to manage all of our cluster and database access. Teleport requires...
View Article