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Cassandra Database Crash Course

  Рет қаралды 34,139

Code with Irtiza

Code with Irtiza

Күн бұрын

Пікірлер: 34
@serbanherlea5755
@serbanherlea5755 5 ай бұрын
I link this video to anyone who is beginning with Cassandra. You have the most clear and concise explanations available online. Thank you very much for your work!
@irtizahafiz
@irtizahafiz Ай бұрын
I really appreciate it. Thank you!
@danser_theplayer01
@danser_theplayer01 Ай бұрын
11:50 let me clarify, this is a very compound PRIMARY KEY with a PARTITION KEY ?
@brianpack369
@brianpack369 Жыл бұрын
I am now on course to crash a Cassandra database.
@nexus888
@nexus888 4 ай бұрын
6:47 so a write goes to all partitions or just one? You didn't mention this. If only one partition receives the write, is it written to disk before committed back as successful to the caller or how does this work?
@10yearsago84
@10yearsago84 10 ай бұрын
Really loved the explanation !!
@alaad1009
@alaad1009 Жыл бұрын
Excellent video man !
@irtizahafiz
@irtizahafiz Жыл бұрын
Glad you liked it!
@haneulkk
@haneulkk Жыл бұрын
It was so easy to understand! Thank you!
@dineshkuruba1880
@dineshkuruba1880 2 жыл бұрын
great video, please do a video on how the data is stored on disk with different column families
@irtizahafiz
@irtizahafiz 2 жыл бұрын
Good idea. I will!
@tianqizhang1573
@tianqizhang1573 Жыл бұрын
Great explanation, easy to understand!
@letsCherishCoding
@letsCherishCoding Жыл бұрын
Amazing explanation!!
@athulraveendran75
@athulraveendran75 7 ай бұрын
Great explanation ❤
@josedamianjimenezn8892
@josedamianjimenezn8892 Жыл бұрын
Very clear your explanation!, Now I can see that cassandra is a good option to consider as DB in my project, thanks a lot for this useful content!
@irtizahafiz
@irtizahafiz Жыл бұрын
Glad this helped you come to that conclusion.
@unujjwal
@unujjwal Ай бұрын
Mentioning the consistent hash ring should be a necessity for intro to cassandra videos
@h.mantri
@h.mantri 6 ай бұрын
When the data is still in Memtable and not yet sent to SSTable and server crashes (or say power goes off), we loose data right? What happens in those cases? Any way to recover data?
@fifamobile-xx2ef
@fifamobile-xx2ef 6 ай бұрын
first written to the commit log to prevent data loss in the event of a failure. And i'm working on ScyllaDB; So if i know something let you know
@Sverdiyev
@Sverdiyev 6 ай бұрын
I’ve also wondered about that. But it seems that the commit log is on disk, similar to WAL. So it would rebuilt from that. The more interesting question here is conflict resolution between the nodes in case of conflicting writes and how is the data replicated between the nodes. Classic distributed system issues it seems.
@ankita.mantrii
@ankita.mantrii 6 ай бұрын
@@Sverdiyev If commit log were on disk, it would defeat the original statement that "cassandra writes are fast since they are written to in-memory commit logs"
@irtizahafiz
@irtizahafiz Ай бұрын
Thank you!
@mpaltanwale
@mpaltanwale 2 жыл бұрын
Commitlog is on disk and not in memory, if you want to make correction in the video.
@irtizahafiz
@irtizahafiz 2 жыл бұрын
Uggh, yeah that's right. Thank you for correcting.
@Khushboo1811
@Khushboo1811 Жыл бұрын
@@irtizahafiz And sequential writes to disk are very fast, that's why even if CommitLog is not in memory, writes are still very fast
@rajesh4361
@rajesh4361 10 ай бұрын
@@Khushboo1811 it actually does the bulk update to Disk..every 10seconds if i am not wrong.
@motazhejaze38
@motazhejaze38 7 ай бұрын
many thanks
@breaknbroke
@breaknbroke 2 жыл бұрын
Is a distributed database all you need for a system to be distributed?
@irtizahafiz
@irtizahafiz 2 жыл бұрын
I think you can use the term in this case, yes.
@Entertainment_Zone2522
@Entertainment_Zone2522 2 жыл бұрын
Bro can you please make video on zipkin traces Store in Cassandra database
@irtizahafiz
@irtizahafiz 2 жыл бұрын
Added to my backlog. Thanks for the idea!
@catalinim4227
@catalinim4227 2 жыл бұрын
multiple players with the same name with the same club? ... 😵‍💫what?
@irtizahafiz
@irtizahafiz 2 жыл бұрын
That analogy fell apart very quickly LOL. But hopefully you get an idea of how the different keys work.
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