20,934 questions
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Cassandra DB version end of support timelines
I would like to know if there is any documentation which clearly mention about cassandra version end of support timelines. All i can identify is cassandra maintained latest 3 major version which are 5....
1
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1
answer
30
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Cassandra Connecting with SSL .crt,.key file using Java throwing bad certificate error
I'm trying to connect to Cassandra with SSL authentication using Spring Boot.
When I tried to connect to Cassandra using the cqlsh terminal with .crt and .key file it connected,
but when I tried in ...
2
votes
1
answer
32
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ScyllaDB, throttling for compaction
I would like to define throttling for compaction in ScyllaDB, but I did not see this setting in scylla.yaml file. I only saw this option for Apache Cassandra in cassandra.yaml file, see the setting:
# ...
- 1,382
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14
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seperate cassandra multi dc cluster into standalone cluster
We have multi DC cassandra cluster( 2DCs and 15 nodes each). There is a requirement came like split the cluster into two standalone clusters and keep some keyspaces in cluster1 and some keyspaces in ...
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33
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Cassandra query TIMEOUT although querying with PARTITION KEY and CLUSTERING ORDER BY
Context/Version
Apache Cassandra 3.11.13
CQL spec 3.4.4
Native protocol v4
I have a table with the following definition:
CREATE TABLE table_1 (
id uuid,
entity_id uuid,
event_timestamp ...
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1
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28
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gocql no response received from cassandra within timeout period
cassandra DB and golang application are deployed in AWS EKS.
We are frequently getting "gocql: no response received from cassandra within timeout period". While executing multiple queries ...
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1
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33
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Java 17 Support for Cassandra 5
I have a question about what "support" means for JDK17 with Cassandra.
From the research I have done, Java 17 is supported in Cassandra 5.x, albeit experimentally.
https://cassandra.apache....
- 2,455
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40
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How to efficiently divide a big Cassandra table for ETL migration
I have a big Cassandra table, which has about 10TB of total size and contains user transactional data.
Table schema is basically 1 primary (partition key) as tx_id and 1 clustering key as tx_time, and ...
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19
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Cassandra range query performance with and without clustering key
In Cassandra DB, is there any performance differences if I do a range query on clustering key column vs non clustering key column using token range?
SELECT * FROM table
WHERE token(partition_key) >=...
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1
vote
1
answer
40
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Cassandra node stuck in mutation stage and CPU utilization is very high
Cassandra node is stuck in the mutation stage and CPU utilization is very high.
Could you please advise on how to resolve the issue?
$ NODETOOL tpstats
Pool Name Active Pending ...
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1
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68
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Issues installing Cassandra on Amazon Linux 3 with Amazon Corretto 8
I'm trying to install Cassandra 4.1.8 on Amazon Linux 3, and it fails due to the below error.
I did install amazon version of java 1.8 - but that doesn't come with the headless package.
Has anyone run ...
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37
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Run/debug configuration for Apache Cassandra 5.0 build not found in Intellij
I want to run Apache cassandra codebase locally and setup its run/debug configuration based on (https://cassandra.apache.org/_/development/ide.html#:~:text=in%20Testing%20section.-,Setting,-up%...
2
votes
1
answer
63
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use ScyllaDB with PHP- Swoole
I am new to backend ,but I plan to have back end that can handle ~100k concurrent connections. I found that PHP-swoole is much faster than others , eg node-js. For database part, based on web search ,...
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1
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25
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Unable to query table after bulk-loading data, MmappedRegions.java returns AssertionError
I'm running Cassandra 5.0.2 on a single node and loading many gigabytes of text data into a table with a columns (key bigint, value text) through a Python program.
Anytime I load large amounts of data,...
- 2,390
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87
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Running cqlsh on Ubuntu 24.04 returns "ModuleNotFoundError: No module named 'cqlshlib.serverversion'"
I recently upgraded my Ubuntu from 22.04 to 24.04 using the Ubuntu upgrade, and now when I tried cqlsh it gives me following error:
Traceback (most recent call last):
File "/usr/bin/cqlsh.py&...
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