- #SNAPPY COMPRESSION SLES HOW TO#
- #SNAPPY COMPRESSION SLES INSTALL#
- #SNAPPY COMPRESSION SLES FULL#
- #SNAPPY COMPRESSION SLES WINDOWS#
INSERT INTO statements insert new rows into a destination table based on a SELECT query statement that runs on a source table. As part of the execution, the resultant tables and partitions are added to the AWS Glue Data Catalog, making them immediately available for subsequent queries. You can also partition the data, specify compression, and convert the data into columnar formats like Apache Parquet and Apache ORC using CTAS statements. This example optimizes the dataset for analytics by partitioning it and converting it to a columnar data format using Create Table as Select (CTAS) and INSERT INTO statements.ĬTAS statements create new tables using standard SELECT queries to filter data as required.
#SNAPPY COMPRESSION SLES HOW TO#
This blog post discusses how to use Athena for extract, transform and load (ETL) jobs for data processing. To learn more about best practices to boost query performance and reduce costs, see Top 10 Performance Tuning Tips for Amazon Athena. You can reduce your per-query costs and get better performance by compressing, partitioning, and converting your data into columnar formats. Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you run. Amazon Athena is an interactive query service that makes it easy to analyze the data stored in Amazon S3 using standard SQL. I learned about it while trying Gnome 40, in openSUSE Tumbleweed, it's also available in fedora and Gnome nightly, but I downloaded that one, it's a smaller. I also installed sysprof, both in openSUSE - though I'll have to re-install now - and in Bullseye.
#SNAPPY COMPRESSION SLES WINDOWS#
Not even Windows restore feature can do this.
#SNAPPY COMPRESSION SLES INSTALL#
I think this gives BTFRS an edge over ext4, sure, you can install tools like timeshift and make snapshots, but you can't just boot them and see whether they work or not, most of the time they do but I've read they may fail as well leaving the users with no option but to reinstall their entire systems again.
#SNAPPY COMPRESSION SLES FULL#
You can also use snapper either via CLI or GUI using the yast module and restore specific files only selecting them by hand without having to boot to a snapshot, but I wasn't sure which files to restore, so I just went with a full snapshot. I don't know if this is an openSUSE only feature, probably not but, grub shows the option to boot into snapshots, it's the last option, that's how I did it. Snapper rollback, rebooted and everything worked as expected.
speaking of which, I upgraded KDE in Bullseye using Norbert Preining's OBS repos and now it's 5.21.3. I don't know exactly how much can influence the results the OSes different libraries, different kernel, different desktop versions. I plan to install phoronix test suite and run a couple of tests I'm more interested in applications startup time and read/write rate speed. so it's a "gotcha" but other than that it runs quite well when they're not running and in fact, the system feels very snappy and responsive. Although, I took other and BTRFS was really busy, then I learned that two maintenance processes btrfs-transacti and btrfs-cleaner were running, what they do is all explained here these two processes seem to run once a week, at least here, and when they do the system becomes very busy and can't do pretty much anything for about 2-3 minutes, maybe 5. As can be seen in the pics, disk activity is pretty much the same, with BRTFS being a little more busy. I ran this while both systems were pretty much in idle, only konsole, dolphin, conky and ksnip were running.
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