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Merge branch 'cassandra-4.0' into cassandra-4.1 

CASSANDRA-21342: Long-tail xref follow-up (cassandra-4.1 subset)

Forward-merge of the cassandra-4.0 long-tail subset onto cassandra-4.1.
Same three files, same six edits as the 4.0 commit.

 patch by Patrick McFadin; reviewed by Mick Semb Wever for CASSANDRA-21342
This commit is contained in:
Patrick McFadin 2026-06-10 10:59:19 -07:00
parent 2bf3bc2925 19ee803038
commit 1a463d753f
3 changed files with 6 additions and 6 deletions
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2
doc/modules/cassandra/pages/architecture/index.adoc
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@ -6,4 +6,4 @@ This section describes the general architecture of Apache Cassandra.
* xref:architecture/dynamo.adoc[Dynamo]
* xref:architecture/storage_engine.adoc[Storage Engine]
* xref:architecture/guarantees.adoc[Guarantees]
* xref:architecture/snitch.adoc[Snitches]
* xref:cassandra:managing/operating/snitch.adoc[Snitches]

4
doc/modules/cassandra/pages/troubleshooting/finding_nodes.adoc
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@ -128,6 +128,6 @@ exhaust significant CPU capacitity with a "single" query.
Once you have narrowed down the problem as much as possible (datacenter,
rack , node), login to one of the nodes using SSH and proceed to debug
using xref:reading_logs.adoc[`logs`], xref:use_nodetooladoc[`nodetool`], and
xref:use_tools.adoc[`os tools`].
using xref:cassandra:troubleshooting/reading_logs.adoc[`logs`], xref:cassandra:troubleshooting/use_nodetool.adoc[`nodetool`], and
xref:cassandra:troubleshooting/use_tools.adoc[`os tools`].
If you are not able to login you may still have access to `logs` and `nodetool` remotely.

6
doc/modules/cassandra/pages/troubleshooting/use_tools.adoc
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@ -208,7 +208,7 @@ when it syncs the commit log. This typically enters into the very high
percentiles of write latency.
Note that to get detailed latency breakdowns you will need a more
advanced tool such as xref:use_tools.adoc#bcc-tools[`bcc-tools`].
advanced tool such as xref:cassandra:troubleshooting/use_tools.adoc#use-bcc-tools[`bcc-tools`].
=== OS page Cache Usage
@ -232,8 +232,8 @@ Cassandra performance can suffer significantly. This is why Cassandra
starts with a reasonably small amount of memory reserved for the heap.
If you suspect that you are missing the OS page cache frequently you can
use advanced tools like xref:use_tools.adoc#use-bcc-tools[cachestat] or
xref:use_tools.adoc#use-vmtouch[vmtouch] to dive deeper.
use advanced tools like xref:cassandra:troubleshooting/use_tools.adoc#use-bcc-tools[cachestat] or
xref:cassandra:troubleshooting/use_tools.adoc#use-vmtouch[vmtouch] to dive deeper.
=== Network Latency and Reliability