c681b3363d
This page was created for very outdated versions of ScyllaDB (5.1 (ScyllaDB Open Source) and 2022.2 (ScyllaDB Enterprise) to ensure smooth upgrade to that versions. We no longer need that document. Fixes https://github.com/scylladb/scylladb/issues/28264 Closes scylladb/scylladb#28266
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4.8 KiB
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85 lines
4.8 KiB
ReStructuredText
Knowledge Base
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==============
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.. toctree::
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:maxdepth: 2
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:hidden:
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:glob:
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/kb/*
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.. panel-box::
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:title: Planning and Setup
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:id: "getting-started"
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:class: my-panel
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* :doc:`ScyllaDB Seed Nodes </kb/seed-nodes>` - Introduction on the purpose and role of Seed Nodes in ScyllaDB as well as configuration tips.
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* :doc:`Compaction </kb/compaction>` - To free up disk space and speed up reads, ScyllaDB must do compaction operations.
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* :doc:`DPDK mode </kb/dpdk-hardware>` - Learn to select and configure networking for DPDK mode
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* :doc:`POSIX networking for ScyllaDB </kb/posix>` - ScyllaDB's POSIX mode works on all physical and virtual network devices and is useful for development work.
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* :doc:`System Limits </kb/system-limits>` - Outlines the system limits which should be set or removed
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* :doc:`Run ScyllaDB as a custom user:group </kb/custom-user>` - Configure the ScyllaDB and supporting services to run as a custom user:group.
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* :doc:`How to Set up a Swap Space Using a File </kb/set-up-swap>` - Outlines the steps you need to take to set up a swap space.
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.. panel-box::
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:title: ScyllaDB under the hood
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:id: "getting-started"
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:class: my-panel
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* :doc:`Gossip in ScyllaDB </kb/gossip>` - ScyllaDB, like Cassandra, uses a type of protocol called “gossip” to exchange metadata about the identities of nodes in a cluster. Here's how it works behind the scenes.
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* :doc:`ScyllaDB consistency quiz for administrators </kb/quiz-administrators>` - How much do you know about NoSQL, from the administrator point of view?
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* :doc:`ScyllaDB Memory Usage </kb/memory-usage>` - Short explanation how ScyllaDB manages memory
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* :doc:`ScyllaDB Nodes are Unresponsive </kb/unresponsive-nodes>` - How to handle swap in ScyllaDB
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* :doc:`CQL Query Does Not Display Entire Result Set </kb/cqlsh-more>` - What to do when a CQL query doesn't display the entire result set.
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* :doc:`Snapshots and Disk Utilization </kb/disk-utilization>` - How snapshots affect disk utilization
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* :doc:`ScyllaDB Snapshots </kb/snapshots>` - What ScyllaDB snapshots are, what they are used for, and how they get created and removed.
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* :doc:`How does ScyllaDB LWT Differ from Apache Cassandra ? </kb/lwt-differences>` - How does ScyllaDB's implementation of lightweight transactions differ from Apache Cassandra?
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* :doc:`If a query does not reveal enough results </kb/cqlsh-results>`
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* :doc:`How to Change gc_grace_seconds for a Table </kb/gc-grace-seconds>` - How to change the ``gc_grace_seconds`` parameter and prevent data resurrection.
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* :doc:`How to flush old tombstones from a table </kb/tombstones-flush>` - How to remove old tombstones from SSTables.
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* :doc:`Increase Cache to Avoid Non-paged Queries </kb/increase-permission-cache>` - How to increase the ``permissions_cache_max_entries`` setting.
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* :doc:`How to Safely Increase the Replication Factor </kb/rf-increase>`
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* :doc:`Facts about TTL, Compaction, and gc_grace_seconds <ttl-facts>`
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* :doc:`Efficient Tombstone Garbage Collection in ICS <garbage-collection-ics>`
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**Note**: The KB article for social readers has been *removed*. Instead, please look at lessons on `ScyllaDB University <https://university.scylladb.com/>`_ or the `Care Pet example <https://care-pet.docs.scylladb.com/master/>`_
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.. panel-box::
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:title: Configuring and Integrating ScyllaDB
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:id: "getting-started"
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:class: my-panel
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* :doc:`NTP configuration for ScyllaDB </kb/ntp>` - ScyllaDB depends on an accurate system clock. Learn to configure NTP for your data store and applications.
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* :doc:`ScyllaDB and Spark integration </kb/scylla-and-spark-integration>` - How to run an example Spark application that uses ScyllaDB to store data?
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* :doc:`Map CPUs to ScyllaDB Shards </kb/map-cpu>` - Mapping between CPUs and ScyllaDB shards
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* :doc:`Customizing CPUSET </kb/customizing-cpuset>`
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* :doc:`Recreate RAID devices </kb/raid-device>` - How to recreate your RAID devices without running scylla-setup
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* :doc:`Configure ScyllaDB Networking with Multiple NIC/IP Combinations </kb/yaml-address>` - examples for setting the different IP addresses in scylla.yaml
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* :doc:`Kafka Sink Connector Quickstart </using-scylla/integrations/kafka-connector>`
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* :doc:`Kafka Sink Connector Configuration </using-scylla/integrations/sink-config>`
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.. panel-box::
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:title: Analyzing ScyllaDB
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:id: "getting-started"
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:class: my-panel
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* :doc:`Using the perf utility with ScyllaDB </kb/use-perf>` - Using the perf utility to analyze ScyllaDB
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* :doc:`Debug your database with Flame Graphs </kb/flamegraph>` - How to setup and run a Flame Graph
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* :doc:`Decoding Stack Traces </kb/decode-stack-trace>` - How to decode stack traces in ScyllaDB Logs
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* :doc:`Counting all rows in a table </kb/count-all-rows>` - Why counting all rows in a table often leads to a timeout
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