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[Feature] SENTINEL SUBCOMMANDS #4

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duongcongtoai opened this issue Feb 22, 2022 · 0 comments
Open
4 of 22 tasks

[Feature] SENTINEL SUBCOMMANDS #4

duongcongtoai opened this issue Feb 22, 2022 · 0 comments

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@duongcongtoai
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duongcongtoai commented Feb 22, 2022 •
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Sentinels have those commands

  • SENTINEL masters, provides a list of configured masters.
  • SENTINEL slaves , provides a list of slaves for the master with the specified name.
  • SENTINEL sentinels , provides a list of sentinels for the master with the specified name.
  • SENTINEL is-master-down-by-addr , returns a two elements multi bulk reply where the first element is :0 or :1, and the second is the Subjective Leader for the failover.
  • CKQUORUM , Check if the current Sentinel configuration is able to reach the quorum needed to failover a master and the majority needed to authorize the failover.
  • CONFIG SET , Set a global Sentinel configuration parameter.
  • CONFIG GET Get global Sentinel configuration parameter.
  • GET-MASTER-ADDR-BY-NAME Return the ip and port number of the master with that name.
  • FAILOVER Manually failover a master node without asking for agreement from other Sentinels
  • FLUSHCONFIG Force Sentinel to rewrite its configuration on disk, including the current Sentinel state
  • MONITOR name ip port quorum , Start monitoring a new master with the specified name, ip, port and quorum.
  • MYID Return the ID of the Sentinel instance.
  • REMOVE master-name Remove master from Sentinel's monitor list.
  • REPLICAS Show a list of replicas for this master and their state.
  • RESET Reset masters for specific master name matching this pattern.
  • SENTINELS Show a list of Sentinel instances for this master and their state.
  • SET Set configuration parameters for certain masters.
  • SIMULATE-FAILURE (CRASH-AFTER-ELECTION|CRASH-AFTER-PROMOTION|HELP) Simulate a Sentinel crash.

Cmds that are important:

  • SENTINEL is-master-down-by-addr , returns a two elements multi bulk reply where the first element is :0 or :1, and the second is the Subjective Leader for the failover.
  • GET-MASTER-ADDR-BY-NAME Return the ip and port number of the master with that name.
  • MONITOR <name> <ip> <port> <quorum> Start monitoring a new master with the specified name, ip, port and quorum.
  • SENTINELS Show a list of Sentinel instances for this master and their state.
@duongcongtoai duongcongtoai changed the title SENTINEL SUBCOMMANDS [Feature] SENTINEL SUBCOMMANDS Feb 22, 2022
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