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NFS

NFS 指标采集器，采集以下数据：

  • RPC 吞吐量指标
  • NFS 挂载点指标（仅支持 NFSv3 和 v4）
  • NFSd 吞吐量指标

配置

前置条件

  • NFS 客户端环境正确配置
  • NFS 客户端正确挂载至服务器的共享目录

采集器配置

进入 DataKit 安装目录下的 conf.d/host 目录，复制 nfs.conf.sample 并命名为 nfs.conf。示例如下：

[[inputs.nfs]]
  ##(optional) collect interval, default is 10 seconds
  interval = '10s'
  ## Whether to enable NFSd metric collection
  # nfsd = true

  ## NFS mount point metric configuration
  [inputs.nfs.mountstats]
    ## Enable r/w statistics
    # rw = true
    ## Enable transport statistics
    # transport = true
    ## Enable event statistics
    # event = true
    ## Enable operation statistics
    # operations = true

  [inputs.nfs.tags]
    # some_tag = "some_value"
    # more_tag = "some_other_value"

配置好后，重启 DataKit 即可。

可通过 ConfigMap 方式注入采集器配置 或 配置 ENV_DATAKIT_INPUTS 开启采集器。

  • ENV_INPUT_NFS_INTERVAL

    采集器重复间隔时长

    字段类型: Duration

    采集器配置字段: interval

    默认值: 10s

  • ENV_INPUT_NFS_ENABLE_MOUNT_STATS_RW_BYTES

    开启 NFS 挂载点的详细字节读写信息

    字段类型: Boolean

    采集器配置字段: enable_mount_stats_rw_bytes

    默认值: false

  • ENV_INPUT_NFS_ENABLE_MOUNT_STATS_TRANSPORT

    开启 NFS 挂载点与服务端的传输信息

    字段类型: Boolean

    采集器配置字段: enable_mount_stats_transport

    默认值: false

  • ENV_INPUT_NFS_ENABLE_MOUNT_STATS_EVENT

    开启 NFS 事件统计信息

    字段类型: Boolean

    采集器配置字段: enable_mount_stats_event

    默认值: false

  • ENV_INPUT_NFS_ENABLE_MOUNT_STATS_OPERATIONS

    开启 NFS 给定操作的传输信息

    字段类型: Boolean

    采集器配置字段: enable_mount_stats_operations

    默认值: false

  • ENV_INPUT_NFS_NFSD

    开启 NFSd 指标

    字段类型: Boolean

    采集器配置字段: nfsd

    默认值: false

NFSd 开启

NFSd 是 NFS 服务的守护进程，是服务器端的一个关键组件，负责处理客户端发送的 NFS 请求。如果本地机器同时作为 NFS 服务器，则可开启该指标查看网络、磁盘 I/O、用户处理 NFS 请求的线程等统计信息。

如需开启，则需修改配置文件。

[[inputs.nfs]]
  ##(optional) collect interval, default is 10 seconds
  interval = '10s'
  ## 是否开启 NFSd 指标采集
  nfsd = true

...

NFS 挂载点详细统计信息开启

默认开启的 nfs_mountstats 指标集仅展示挂载点磁盘用量以及 NFS 运行时间的统计信息，如需查看 NFS 挂载点的 R/W、Transport、Event、Operations 等信息则需要修改配置文件。

[[inputs.nfs]]

  ...

  ## NFS 挂载点指标配置
  [inputs.nfs.mountstats]
    ## 开启 R/W 统计信息
    # rw = true
    ## 开启传输统计信息 
    # transport = true
    ## 开启事件统计信息
    # event = true
    ## 开启操作统计信息
    # operations = true

...

指标

以下所有数据采集，默认会追加名为 host 的全局 tag（tag 值为 DataKit 所在主机名），也可以在配置中通过 [inputs.nfs.tags] 指定其它标签：

 [inputs.nfs.tags]
  # some_tag = "some_value"
  # more_tag = "some_other_value"
  # ...

nfs

  • 标签
Tag Description
method Invoked method.
protocol Protocol type.
  • 指标列表
Metric Description Type Unit
connections_total Total number of NFSd TCP connections. int count
requests_total Number of NFS procedures invoked. int count
rpc_authentication_refreshes_total Number of RPC authentication refreshes performed. int count
rpc_retransmissions_total Number of RPC transmissions performed. int count
rpcs_total Total number of RPCs performed. int count
tcp_packets_total Total NFSd network TCP packets (sent+received) by protocol type. int count
udp_packets_total Total NFSd network UDP packets (sent+received) by protocol type. int count

nfs_mountstats

  • 标签
Tag Description
device Device name.
mountpoint Where the device is mounted.
type Device type.
  • 指标列表
Metric Description Type Unit
age_seconds_total The age of the NFS mount in seconds. int s
direct_read_bytes_total Number of bytes read using the read() syscall in O_DIRECT mode. int B
direct_write_bytes_total Number of bytes written using the write() syscall in O_DIRECT mode. int B
event_attribute_invalidate_total Number of times cached inode attributes are invalidated. int count
event_data_invalidate_total Number of times an inode cache is cleared. int count
event_dnode_revalidate_total Number of times cached dentry nodes are re-validated from the server. int count
event_inode_revalidate_total Number of times cached inode attributes are re-validated from the server. int count
event_jukebox_delay_total Number of times the NFS server indicated EJUKEBOX; retrieving data from offline storage. int count
event_pnfs_read_total Number of NFS v4.1+ pNFS reads. int count
event_pnfs_write_total Number of NFS v4.1+ pNFS writes. int count
event_short_read_total Number of times the NFS server gave less data than expected while reading. int count
event_short_write_total Number of times the NFS server wrote less data than expected while writing. int count
event_silly_rename_total Number of times a file was removed while still open by another process. int count
event_truncation_total Number of times files have been truncated. int count
event_vfs_access_total Number of times permissions have been checked. int count
event_vfs_file_release_total Number of times files have been closed and released. int count
event_vfs_flush_total Number of pending writes that have been forcefully flushed to the server. int count
event_vfs_fsync_total Number of times fsync() has been called on directories and files. int count
event_vfs_getdents_total Number of times directory entries have been read with getdents(). int count
event_vfs_lock_total Number of times locking has been attempted on a file. int count
event_vfs_lookup_total Number of times a directory lookup has occurred. int count
event_vfs_open_total Number of times cached inode attributes are invalidated. int count
event_vfs_read_page_total Number of pages read directly via mmap()'d files. int count
event_vfs_read_pages_total Number of times a group of pages have been read. int count
event_vfs_setattr_total Number of times directory entries have been read with getdents(). int count
event_vfs_update_page_total Number of updates (and potential writes) to pages. int count
event_vfs_write_page_total Number of pages written directly via mmap()'d files. int count
event_vfs_write_pages_total Number of times a group of pages have been written. int count
event_write_extension_total Number of times a file has been grown due to writes beyond its existing end. int count
fs_avail Available space on the filesystem. int B
fs_size Total size of the filesystem. int B
fs_used Used space on the filesystem. int B
fs_used_percent Percentage of used space on the filesystem. float percent
operations_major_timeouts_total Number of times a request has had a major timeout for a given operation. int count
operations_queue_time_seconds_total Duration all requests spent queued for transmission for a given operation before they were sent, in seconds. s count
operations_received_bytes_total Number of bytes received for a given operation, including RPC headers and payload. int B
operations_request_time_seconds_total Duration all requests took from when a request was enqueued to when it was completely handled for a given operation, in seconds. s count
operations_requests_total Number of requests performed for a given operation. int count
operations_response_time_seconds_total Duration all requests took to get a reply back after a request for a given operation was transmitted, in seconds. s count
operations_sent_bytes_total Number of bytes sent for a given operation, including RPC headers and payload. int B
operations_transmissions_total Number of times an actual RPC request has been transmitted for a given operation. int count
read_bytes_total Number of bytes read using the read() syscall. int B
read_pages_total Number of pages read directly via mmap()'d files. int count
total_read_bytes_total Number of bytes read from the NFS server, in total. int B
total_write_bytes_total Number of bytes written to the NFS server, in total. int B
transport_backlog_queue_total Total number of items added to the RPC backlog queue. int count
transport_bad_transaction_ids_total Number of times the NFS server sent a response with a transaction ID unknown to this client. int count
transport_bind_total Number of times the client has had to establish a connection from scratch to the NFS server. int count
transport_connect_total Number of times the client has made a TCP connection to the NFS server. int count
transport_idle_time_seconds Duration since the NFS mount last saw any RPC traffic, in seconds. int s
transport_maximum_rpc_slots Maximum number of simultaneously active RPC requests ever used. int count
transport_pending_queue_total Total number of items added to the RPC transmission pending queue. int count
transport_receives_total Number of RPC responses for this mount received from the NFS server. int count
transport_sending_queue_total Total number of items added to the RPC transmission sending queue. int count
transport_sends_total Number of RPC requests for this mount sent to the NFS server. int count
write_bytes_total Number of bytes written using the write() syscall. int B
write_pages_total Number of pages written directly via mmap()'d files. int count

nfsd

  • 标签
Tag Description
error Error type.
method Invoked method.
protocol Protocol type.
  • 指标列表
Metric Description Type Unit
connections_total Total number of NFSd TCP connections. int count
disk_bytes_read_total Total NFSd bytes read. int count
disk_bytes_written_total Total NFSd bytes written. int count
file_handles_stale_total Total number of NFSd stale file handles int count
read_ahead_cache_not_found_total Total number of NFSd read ahead cache not found. int count
read_ahead_cache_size_blocks How large the read ahead cache is in blocks. int count
reply_cache_hits_total Total number of NFSd Reply Cache hits (client lost server response). int count
reply_cache_misses_total Total number of NFSd Reply Cache an operation that requires caching (idempotent). int count
reply_cache_nocache_total Total number of NFSd Reply Cache non-idempotent operations (rename/delete/…). int count
rpc_errors_total Total number of NFSd RPC errors by error type. int count
server_rpcs_total Total number of NFSd RPCs. int count
server_threads Total number of NFSd kernel threads that are running. int count
tcp_packets_total Total NFSd network TCP packets (sent+received) by protocol type. int count
udp_packets_total Total NFSd network UDP packets (sent+received) by protocol type. int count

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