Cassandra nodetool详解

Posted 2021-03-11 yuxiaohao

 

Cassandra自带一个nodetool工具，安装目录/bin/nodetool

 

nodetool help：帮助信息

[cassandra@node3 bin]$ ./nodetool help
usage: nodetool [(-p <port> | --port <port>)] [(-h <host> | --host <host>)]
        [(-pwf <passwordFilePath> | --password-file <passwordFilePath>)]
        [(-pw <password> | --password <password>)]
        [(-u <username> | --username <username>)] <command> [<args>]

The most commonly used nodetool commands are:
    assassinate                  Forcefully remove a dead node without re-replicating any data.  Use as a last resort if you cannot removenode
    bootstrap                    Monitor/manage node‘s bootstrap process
    cleanup                      Triggers the immediate cleanup of keys no longer belonging to a node. By default, clean all keyspaces
    clearsnapshot                Remove the snapshot with the given name from the given keyspaces. If no snapshotName is specified we will remove all snapshots
    compact                      Force a (major) compaction on one or more tables or user-defined compaction on given SSTables
    compactionhistory            Print history of compaction
    compactionstats              Print statistics on compactions
    decommission                 Decommission the *node I am connecting to*
    describecluster              打印集群信息
    describering                 Shows the token ranges info of a given keyspace
    disableautocompaction        Disable autocompaction for the given keyspace and table
    disablebackup                Disable incremental backup
    disablebinary                Disable native transport (binary protocol)
    disablegossip                Disable gossip (effectively marking the node down)
    disablehandoff               Disable storing hinted handoffs
    disablehintsfordc            Disable hints for a data center
    disablethrift                Disable thrift server
    drain                        Drain the node (stop accepting writes and flush all tables)
    enableautocompaction         Enable autocompaction for the given keyspace and table
    enablebackup                 Enable incremental backup
    enablebinary                 Reenable native transport (binary protocol)
    enablegossip                 Reenable gossip
    enablehandoff                Reenable future hints storing on the current node
    enablehintsfordc             Enable hints for a data center that was previsouly disabled
    enablethrift                 Reenable thrift server
    failuredetector              Shows the failure detector information for the cluster
    flush                        Flush one or more tables
    garbagecollect               Remove deleted data from one or more tables
    gcstats                      Print GC Statistics
    getcompactionthreshold       Print min and max compaction thresholds for a given table
    getcompactionthroughput      Print the MB/s throughput cap for compaction in the system
    getconcurrentcompactors      Get the number of concurrent compactors in the system.
    getendpoints                 Print the end points that owns the key
    getinterdcstreamthroughput   Print the Mb/s throughput cap for inter-datacenter streaming in the system
    getlogginglevels             打印日志级别
    getsstables                  Print the sstable filenames that own the key
    getstreamthroughput          Print the Mb/s throughput cap for streaming in the system
    gettimeout                   Print the timeout of the given type in ms
    gettraceprobability          Print the current trace probability value
    gossipinfo                   打印这个节点通过gossip向其他节点传递的参数
    help                         打印帮助信息
    info                         打印节点信息
    invalidatecountercache       Invalidate the counter cache
    invalidatekeycache           Invalidate the key cache
    invalidaterowcache           Invalidate the row cache
    join                         Join the ring
    listsnapshots                Lists all the snapshots along with the size on disk and true size.
    move                         Move node on the token ring to a new token
    netstats                     Print network information on provided host (connecting node by default)
    pausehandoff                 Pause hints delivery process
    proxyhistograms              Print statistic histograms for network operations
    rangekeysample               Shows the sampled keys held across all keyspaces
    rebuild                      Rebuild data by streaming from other nodes (similarly to bootstrap)
    rebuild_index                A full rebuild of native secondary indexes for a given table
    refresh                      Load newly placed SSTables to the system without restart
    refreshsizeestimates         Refresh system.size_estimates
    reloadlocalschema            Reload local node schema from system tables
    reloadtriggers               Reload trigger classes
    relocatesstables             Relocates sstables to the correct disk
    removenode                   Show status of current node removal, force completion of pending removal or remove provided ID
    repair                       Repair one or more tables
    replaybatchlog               Kick off batchlog replay and wait for finish
    resetlocalschema             Reset node‘s local schema and resync
    resumehandoff                Resume hints delivery process
    ring                         查看token环信息
    scrub                        Scrub (rebuild sstables for) one or more tables
    setcachecapacity             Set global key, row, and counter cache capacities (in MB units)
    setcachekeystosave           Set number of keys saved by each cache for faster post-restart warmup. 0 to disable
    setcompactionthreshold       Set min and max compaction thresholds for a given table
    setcompactionthroughput      Set the MB/s throughput cap for compaction in the system, or 0 to disable throttling
    setconcurrentcompactors      Set number of concurrent compactors in the system.
    sethintedhandoffthrottlekb   Set hinted handoff throttle in kb per second, per delivery thread.
    setinterdcstreamthroughput   Set the Mb/s throughput cap for inter-datacenter streaming in the system, or 0 to disable throttling
    setlogginglevel              动态设置日志级别
    setstreamthroughput          Set the Mb/s throughput cap for streaming in the system, or 0 to disable throttling
    settimeout                   Set the specified timeout in ms, or 0 to disable timeout
    settraceprobability          Sets the probability for tracing any given request to value. 0 disables, 1 enables for all requests, 0 is the default
    snapshot                     Take a snapshot of specified keyspaces or a snapshot of the specified table
    status                       打印集群信息
    statusbackup                 Status of incremental backup
    statusbinary                 Status of native transport (binary protocol)
    statusgossip                 打印gossip状态
    statushandoff                打印当前节点storing future hints状态
    statusthrift                 打印thrift服务状态
    stop                         Stop compaction
    stopdaemon                   Stop cassandra daemon
    tablehistograms              Print statistic histograms for a given table
    tablestats                   打印表统计信息
    toppartitions                Sample and print the most active partitions for a given column family
    tpstats                      打印线程池统计信息
    truncatehints                Truncate all hints on the local node, or truncate hints for the endpoint(s) specified.
    upgradesstables              Rewrite sstables (for the requested tables) that are not on the current version (thus upgrading them to said current version)
    verify                       Verify (check data checksum for) one or more tables
    version                      打印cassandra版本
    viewbuildstatus              Show progress of a materialized view build

See ‘nodetool help <command>‘ for more information on a specific command.