Amazon Redshift Database | Big Data Processing | Visual Explanation

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  • เผยแพร่เมื่อ 27 ต.ค. 2024

ความคิดเห็น • 12

  • @soniakhatri1948
    @soniakhatri1948 2 ปีที่แล้ว +1

    Hi Pythoholic, i have been watching your AWS related content since a couple of months now and i would say they really help me clear my doubts on complex topics.
    If there is a link available where all the topics are there in sequential order , please share.
    Please also include missing topics like transit gateway :) :)

    • @Pythoholic
      @Pythoholic  2 ปีที่แล้ว +1

      th-cam.com/play/PLiH9_MU-6RjI9gdFqmvUfKRfw_zRxIb6o.html Please check this playlist

    • @soniakhatri1948
      @soniakhatri1948 2 ปีที่แล้ว

      Thank u 🙏🏻

  • @SA-ln1dr
    @SA-ln1dr 2 ปีที่แล้ว

    Very well explained, thank you so much.

  • @sandeepsahu1716
    @sandeepsahu1716 ปีที่แล้ว

    Hello sir, thanks for the session,
    I am using postgres database in AWS, we need to do a vacuume to free some space in db..can you please let me know what parameters we have to set in parameters group

    • @Pythoholic
      @Pythoholic  ปีที่แล้ว

      When it comes to performing a VACUUM operation on a PostgreSQL database running on AWS RDS, there are a few configuration parameters in the DB parameter group that you can adjust to optimize the process. Here are some of the key parameters you may want to consider:
      autovacuum_vacuum_scale_factor: This parameter determines how aggressively autovacuum processes will work to reclaim space. The default value is 0.2, which means that autovacuum will start a VACUUM operation when the amount of dead rows in a table exceeds 20% of the total number of live rows. You can adjust this parameter to be more or less aggressive, depending on your needs.
      autovacuum_vacuum_cost_limit: This parameter determines how much work autovacuum processes are allowed to do before they stop. The default value is 200, which means that autovacuum will stop after it has processed 200 pages. You can adjust this parameter to allow autovacuum to do more work, which can be helpful if you have a large database with many tables.
      autovacuum_analyze_scale_factor: This parameter determines how aggressively autovacuum processes will work to analyze tables. The default value is 0.1, which means that autovacuum will start an ANALYZE operation when the number of rows in a table changes by 10%. You can adjust this parameter to be more or less aggressive, depending on your needs.
      autovacuum_analyze_threshold: This parameter determines the minimum number of rows that must change in a table before autovacuum will start an ANALYZE operation. The default value is 50, which means that autovacuum will not analyze tables that have fewer than 50 rows. You can adjust this parameter to analyze smaller tables.
      vacuum_cost_limit: This parameter determines how much work a manual VACUUM operation is allowed to do before it stops. The default value is 200, which means that a manual VACUUM operation will stop after it has processed 200 pages. You can adjust this parameter to allow a manual VACUUM operation to do more work.
      vacuum_cost_delay: This parameter determines how much time a manual VACUUM operation will wait between processing pages. The default value is 0 milliseconds, which means that a manual VACUUM operation will process pages as quickly as possible. You can adjust this parameter to introduce a delay between page processing, which can help to reduce the load on your system.

  • @nagendrakumardvs5633
    @nagendrakumardvs5633 2 ปีที่แล้ว

    Could you please explain on how the slices (in compute nodes) assigned with data (PostgreSQL) records for processing

  • @TheBlackChessAuthority
    @TheBlackChessAuthority ปีที่แล้ว

    Wow! How do you speak so fast.

    • @Pythoholic
      @Pythoholic  ปีที่แล้ว

      Sorry

    • @TheBlackChessAuthority
      @TheBlackChessAuthority ปีที่แล้ว

      @@Pythoholic I love your videos, thanks for the excellent information. I can always slow it down. My comment was a compliment.

    • @Pythoholic
      @Pythoholic  ปีที่แล้ว

      Haha yeah that's true.. thanks 😊