mirror of https://github.com/apache/cassandra
CASSANDRA-21342: Long-tail xref follow-up (cassandra-4.0 subset)
Subset of the trunk long-tail xref follow-up (commit cc97ee5332)
applicable to cassandra-4.0. Three files have broken patterns that
still apply on this branch after PR #4807's forward-merge: the
architecture index, finding_nodes, and use_tools self-page xrefs.
Six edits total. Mechanical retargets only; no prose was rewritten.
Edits omitted (trunk-only):
* Twenty files introduced in 5.0 or later (developing/cql/, reference/
cql-commands/, managing/operating/, etc).
* use_tools.adoc edits 4 and 5 (different line state on 4.x;
packet-capture anchor section structure differs).
patch by Patrick McFadin; reviewed by Mick Semb Wever for CASSANDRA-21342
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@ -6,4 +6,4 @@ This section describes the general architecture of Apache Cassandra.
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* xref:architecture/dynamo.adoc[Dynamo]
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* xref:architecture/storage_engine.adoc[Storage Engine]
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* xref:architecture/guarantees.adoc[Guarantees]
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* xref:architecture/snitch.adoc[Snitches]
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* xref:cassandra:managing/operating/snitch.adoc[Snitches]
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@ -128,6 +128,6 @@ exhaust significant CPU capacitity with a "single" query.
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Once you have narrowed down the problem as much as possible (datacenter,
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rack , node), login to one of the nodes using SSH and proceed to debug
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using xref:reading_logs.adoc[`logs`], xref:use_nodetooladoc[`nodetool`], and
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xref:use_tools.adoc[`os tools`].
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using xref:cassandra:troubleshooting/reading_logs.adoc[`logs`], xref:cassandra:troubleshooting/use_nodetool.adoc[`nodetool`], and
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xref:cassandra:troubleshooting/use_tools.adoc[`os tools`].
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If you are not able to login you may still have access to `logs` and `nodetool` remotely.
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@ -208,7 +208,7 @@ when it syncs the commit log. This typically enters into the very high
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percentiles of write latency.
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Note that to get detailed latency breakdowns you will need a more
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advanced tool such as xref:use_tools.adoc#bcc-tools[`bcc-tools`].
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advanced tool such as xref:cassandra:troubleshooting/use_tools.adoc#use-bcc-tools[`bcc-tools`].
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=== OS page Cache Usage
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@ -232,8 +232,8 @@ Cassandra performance can suffer significantly. This is why Cassandra
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starts with a reasonably small amount of memory reserved for the heap.
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If you suspect that you are missing the OS page cache frequently you can
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use advanced tools like xref:use_tools.adoc#use-bcc-tools[cachestat] or
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xref:use_tools.adoc#use-vmtouch[vmtouch] to dive deeper.
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use advanced tools like xref:cassandra:troubleshooting/use_tools.adoc#use-bcc-tools[cachestat] or
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xref:cassandra:troubleshooting/use_tools.adoc#use-vmtouch[vmtouch] to dive deeper.
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=== Network Latency and Reliability
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