82 lines
2.0 KiB
ReStructuredText
82 lines
2.0 KiB
ReStructuredText
.. _mariadb-guide:
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=============================
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Memcached in Kolla-Kubernetes
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=============================
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Overview
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========
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`Memcached <https://memcached.org/>_ is the default persistant cache for a
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`Kolla-Kubernetes cluster.
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Preparation and Deployment
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==========================
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Memcached is self-sufficient, thus it's one of the first things you want to
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start while installing.
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Memcache does not require bootstrapping. To create the Replication Controller
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that will keep Memcached running::
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kolla-kubernetes start memcached
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Verify Operation
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================
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To find the IP address of the kubernetes service so you can test for
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functionality on a machine inside of the Kubernetes cluster (e.g. running
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Kube-proxy) but not running as a container::
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kubectl get svc memcached
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Once you know the IP address and port, you can check to see if memcached is
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responding to requests by replacing <ADDRESS> with the address of the
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memcached service::
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echo "stats settings" | nc <ADDRESS> 11211
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You should see output looking like this:::
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STAT maxbytes 67108864
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STAT maxconns 1024
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STAT tcpport 11211
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STAT udpport 11211
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STAT inter 0.0.0.0
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STAT verbosity 2
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STAT oldest 0
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STAT evictions on
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STAT domain_socket NULL
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STAT umask 700
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STAT growth_factor 1.25
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STAT chunk_size 48
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STAT num_threads 4
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STAT num_threads_per_udp 4
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STAT stat_key_prefix :
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STAT detail_enabled no
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STAT reqs_per_event 20
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STAT cas_enabled yes
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STAT tcp_backlog 1024
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STAT binding_protocol auto-negotiate
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STAT auth_enabled_sasl no
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STAT item_size_max 1048576
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STAT maxconns_fast no
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STAT hashpower_init 0
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STAT slab_reassign no
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STAT slab_automove 0
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STAT lru_crawler no
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STAT lru_crawler_sleep 100
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STAT lru_crawler_tocrawl 0
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STAT tail_repair_time 0
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STAT flush_enabled yes
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STAT hash_algorithm jenkins
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STAT lru_maintainer_thread no
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STAT hot_lru_pct 32
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STAT warm_lru_pct 32
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STAT expirezero_does_not_evict no
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END
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Debug an Instance
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=================
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TODO: Fill in more details |