ZooKeeper

Supported OS Linux Mac OS

Integration version6.1.0

ZooKeeper Dashboard

Overview

The ZooKeeper check tracks client connections and latencies, monitors the number of unprocessed requests, and more.

Setup

Installation

The ZooKeeper check is included in the Datadog Agent package, so you don’t need to install anything else on your ZooKeeper servers.

Configuration

Inclusion list

As of version 3.5, ZooKeeper has a 4lw.commands.whitelist parameter. See ZooKeeper Cluster Options) for an example that allows four letter word commands. By default, only srvr is whitelisted. Add stat and mntr to the whitelist, as the integration is based on these commands.

Enabling SSL

ZooKeeper 3.5 introduced the ability to use SSL authentication. For information about setting up SSL with ZooKeeper, see the ZooKeeper SSL User Guide.

After you have ZooKeeper set up with SSL, you can also configure the Datadog Agent to connect to ZooKeeper using SSL. If you already have authentication set up using JKS files, follow the steps below to convert them to PEM files for TLS/SSL configuration.

The following example commands assume that your JKS truststore and keystore files are called:

server_truststore.jks
server_keystore.jks
client_truststore.jks
client_keystore.jks

It is also assumed that both sides’ keystore and truststore files have each other’s certificates with aliases server_cert and client_cert, meaning that a Java ZooKeeper client can already connect to a ZooKeeper server. If your private key has a password, make sure this password is included in the config.yaml file for config option tls_private_key_password.

To convert the JKS files to PEM files:

Get the ca_cert.pem file from client_truststore.jks, since the client’s truststore contains the certificate of the server that is trustable:
```
keytool -exportcert -file ca_cert.pem -keystore client_truststore.jks -alias server_cert -rfc
```

Get the cert.pem file from client_keystore.jks, since the client’s keystore contains the cert of the client for alias client_cert:

keytool -importkeystore -srckeystore client_keystore.jks -destkeystore cert.p12 -srcstoretype jks -deststoretype pkcs12 -srcalias client_cert

Run the openssl pkcs12 command, which exports both the client cert and the private key for the certificate. The tls_cert config option is able to read and parse the PEM file which contains both the cert and private key. Add -nodes to this command if you want to get a non-password-protected file:
```
openssl pkcs12 -in cert.p12 -out cert.pem
```

Host

To configure this check for an Agent running on a host:

Edit the zk.d/conf.yaml file, in the conf.d/ folder at the root of your Agent’s configuration directory to start collecting your ZooKeeper metrics and logs. See the sample zk.d/conf.yaml for all available configuration options.
Restart the Agent.

Log collection

Available for Agent versions >6.0

ZooKeeper uses the log4j logger per default. To activate the logging into a file and customize the format edit the log4j.properties file:

  # Set root logger level to INFO and its only appender to R
  log4j.rootLogger=INFO, R
  log4j.appender.R.File=/var/log/zookeeper.log
  log4j.appender.R.layout=org.apache.log4j.PatternLayout
  log4j.appender.R.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p [%t] %c{1}:%L - %m%n

By default, Datadog’s integration pipeline supports the following conversion patterns:
```
  %d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
  %d [%t] %-5p %c - %m%n
  %r [%t] %p %c %x - %m%n
```
Make sure you clone and edit the integration pipeline if you have a different format.
Collecting logs is disabled by default in the Datadog Agent, enable it in your datadog.yaml file:
```
logs_enabled: true
```

Uncomment and edit this configuration block at the bottom of your zk.d/conf.yaml:

logs:
  - type: file
    path: /var/log/zookeeper.log
    source: zookeeper
    service: myapp
    #To handle multi line that starts with yyyy-mm-dd use the following pattern
    #log_processing_rules:
    #  - type: multi_line
    #    name: log_start_with_date
    #    pattern: \d{4}\-(0?[1-9]|1[012])\-(0?[1-9]|[12][0-9]|3[01])

Change the path and service parameter values and configure them for your environment. See the sample zk.d/conf.yaml for all available configuration options.

Restart the Agent.

Containerized

For containerized environments, see the Autodiscovery Integration Templates for guidance on applying the parameters below.

Metric collection

Parameter	Value
`<INTEGRATION_NAME>`	`zk`
`<INIT_CONFIG>`	blank or `{}`
`<INSTANCE_CONFIG>`	`{"host": "%%host%%", "port": "2181"}`

Log collection

Available for Agent versions >6.0

Collecting logs is disabled by default in the Datadog Agent. To enable it, see Kubernetes Log Collection.

Parameter	Value
`<LOG_CONFIG>`	`{"source": "zookeeper", "service": "<SERVICE_NAME>"}`

Validation

Run the Agent’s status subcommand and look for zk under the Checks section.

Data Collected

Metrics


zookeeper.add_dead_watcher_stall_time (gauge)	[zookeeper version 3.6+ only]
zookeeper.approximate_data_size (gauge)
zookeeper.avg_latency (gauge)	The amount of time it takes for the server to respond to a client request. Shown as millisecond
zookeeper.bytes_received (gauge)	Number of bytes received
zookeeper.bytes_received_count (gauge)	[zookeeper version 3.6+ only] The number of bytes received Shown as byte
zookeeper.bytes_sent (gauge)	Number of bytes sent
zookeeper.close_session_prep_time (gauge)	[zookeeper version 3.6+ only] Histogram of close_session_prep_time
zookeeper.close_session_prep_time_count (gauge)	[zookeeper version 3.6+ only] Total count of close_session_prep_time
zookeeper.close_session_prep_time_sum (gauge)	[zookeeper version 3.6+ only] Sum of close_session_prep_time
zookeeper.commit_commit_proc_req_queued (gauge)	[zookeeper version 3.6+ only] Histogram of commit_commit_proc_req_queued
zookeeper.commit_commit_proc_req_queued_count (gauge)	[zookeeper version 3.6+ only] Total count of commit_commit_proc_req_queued
zookeeper.commit_commit_proc_req_queued_sum (gauge)	[zookeeper version 3.6+ only] Sum of commit_commit_proc_req_queued
zookeeper.commit_count (gauge)	[zookeeper version 3.6+ only] The number of commits performed on leader
zookeeper.commit_process_time (gauge)	[zookeeper version 3.6+ only] Histogram of commit_process_time
zookeeper.commit_process_time_count (gauge)	[zookeeper version 3.6+ only] Total count of commit_process_time
zookeeper.commit_process_time_sum (gauge)	[zookeeper version 3.6+ only] Sum of commit_process_time
zookeeper.commit_propagation_latency (gauge)	[zookeeper version 3.6+ only] Histogram of commit_propagation_latency
zookeeper.commit_propagation_latency_count (gauge)	[zookeeper version 3.6+ only] Total count of commit_propagation_latency
zookeeper.commit_propagation_latency_sum (gauge)	[zookeeper version 3.6+ only] Sum of commit_propagation_latency
zookeeper.concurrent_request_processing_in_commit_processor (gauge)	[zookeeper version 3.6+ only] Histogram of concurrent_request_processing_in_commit_processor
zookeeper.concurrent_request_processing_in_commit_processor_count (gauge)	[zookeeper version 3.6+ only] Total count of concurrent_request_processing_in_commit_processor
zookeeper.concurrent_request_processing_in_commit_processor_sum (gauge)	[zookeeper version 3.6+ only] Sum of concurrent_request_processing_in_commit_processor
zookeeper.connection_drop_count (gauge)	[zookeeper version 3.6+ only] Count of connection drops
zookeeper.connection_drop_probability (gauge)	[zookeeper version 3.6+ only] Connection drop probability
zookeeper.connection_rejected (gauge)	[zookeeper version 3.6+ only] Connection rejected counts
zookeeper.connection_request_count (gauge)	[zookeeper version 3.6+ only] Number of incoming client connection requests
zookeeper.connection_revalidate_count (gauge)	[zookeeper version 3.6+ only] Count of connection revalidations
zookeeper.connection_token_deficit (gauge)	[zookeeper version 3.6+ only] Histogram of connection_token_deficit
zookeeper.connection_token_deficit_count (gauge)	[zookeeper version 3.6+ only] Total count of connection_token_deficit
zookeeper.connection_token_deficit_sum (gauge)	[zookeeper version 3.6+ only] Sum of connection_token_deficit
zookeeper.connections (gauge)	The total count of client connections. Shown as connection
zookeeper.datadog_client_exception (rate)	The exception rate seen by the Datadog Agent when trying to collect stats. Shown as error
zookeeper.dbinittime (gauge)	[zookeeper version 3.6+ only] Histogram of dbinittime Time to reload database
zookeeper.dbinittime_count (gauge)	[zookeeper version 3.6+ only] Total count of dbinittime Time to reload database
zookeeper.dbinittime_sum (gauge)	[zookeeper version 3.6+ only] Sum of dbinittime Time to reload database
zookeeper.dead_watchers_cleaner_latency (gauge)	[zookeeper version 3.6+ only] Histogram of dead_watchers_cleaner_latency
zookeeper.dead_watchers_cleaner_latency_count (gauge)	[zookeeper version 3.6+ only] Total count of dead_watchers_cleaner_latency
zookeeper.dead_watchers_cleaner_latency_sum (gauge)	[zookeeper version 3.6+ only] Sum of dead_watchers_cleaner_latency
zookeeper.dead_watchers_cleared (gauge)	[zookeeper version 3.6+ only]
zookeeper.dead_watchers_queued (gauge)	[zookeeper version 3.6+ only]
zookeeper.diff_count (gauge)	[zookeeper version 3.6+ only] Number of diff syncs performed
zookeeper.digest_mismatches_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.election_time (gauge)	[zookeeper version 3.6+ only] Time between entering and leaving election
zookeeper.election_time_count (gauge)	[zookeeper version 3.6+ only] Time between entering and leaving election
zookeeper.election_time_sum (gauge)	[zookeeper version 3.6+ only] Time between entering and leaving election
zookeeper.ensemble_auth_fail (gauge)	[zookeeper version 3.6+ only]
zookeeper.ensemble_auth_skip (gauge)	[zookeeper version 3.6+ only]
zookeeper.ensemble_auth_success (gauge)	[zookeeper version 3.6+ only]
zookeeper.ephemerals_count (gauge)
zookeeper.follower_sync_time (gauge)	[zookeeper version 3.6+ only] Time for follower to sync with leader
zookeeper.follower_sync_time_count (gauge)	[zookeeper version 3.6+ only] Time for follower to sync with leader
zookeeper.follower_sync_time_sum (gauge)	[zookeeper version 3.6+ only] Time for follower to sync with leader
zookeeper.fsynctime (gauge)	[zookeeper version 3.6+ only] Time to fsync transaction log
zookeeper.fsynctime_count (gauge)	[zookeeper version 3.6+ only] Time to fsync transaction log
zookeeper.fsynctime_sum (gauge)	[zookeeper version 3.6+ only] Time to fsync transaction log
zookeeper.global_sessions (gauge)	[zookeeper version 3.6+ only] Count of global sessions
zookeeper.instances (gauge)
zookeeper.jvm_buffer_pool_capacity_bytes (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_buffer_pool_used_buffers (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_buffer_pool_used_bytes (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_classes_loaded (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_classes_loaded_total (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_classes_unloaded_total (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_gc_collection_seconds_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_gc_collection_seconds_sum (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_info (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_bytes_committed (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_bytes_init (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_bytes_max (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_bytes_used (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_pool_allocated_bytes_total (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_pool_bytes_committed (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_memory_pool_bytes_init (gauge)	[zookeeper version 3.6+ only] Shown as byte
zookeeper.jvm_memory_pool_bytes_max (gauge)	[zookeeper version 3.6+ only] Shown as byte
zookeeper.jvm_memory_pool_bytes_used (gauge)	[zookeeper version 3.6+ only] Shown as byte
zookeeper.jvm_threads_current (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_threads_daemon (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_threads_deadlocked (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_threads_deadlocked_monitor (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_threads_peak (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_threads_started_total (gauge)	[zookeeper version 3.6+ only]
zookeeper.jvm_threads_state (gauge)	[zookeeper version 3.6+ only]
zookeeper.large_requests_rejected (gauge)	[zookeeper version 3.6+ only]
zookeeper.last_client_response_size (gauge)	[zookeeper version 3.6+ only]
zookeeper.latency.avg (gauge)	The amount of time it takes for the server to respond to a client request. Shown as millisecond
zookeeper.latency.max (gauge)	The amount of time it takes for the server to respond to a client request. Shown as millisecond
zookeeper.latency.min (gauge)	The amount of time it takes for the server to respond to a client request. Shown as millisecond
zookeeper.learner_commit_received_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.learner_proposal_received_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.local_sessions (gauge)	[zookeeper version 3.6+ only] Count of local sessions
zookeeper.local_write_committed_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of local_write_committed_time_ms
zookeeper.local_write_committed_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of local_write_committed_time_ms
zookeeper.local_write_committed_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of local_write_committed_time_ms
zookeeper.looking_count (gauge)	[zookeeper version 3.6+ only] Number of transitions into looking state
zookeeper.max_client_response_size (gauge)	[zookeeper version 3.6+ only]
zookeeper.max_file_descriptor_count (gauge)
zookeeper.max_latency (gauge)	The amount of time it takes for the server to respond to a client request. Shown as millisecond
zookeeper.min_client_response_size (gauge)	[zookeeper version 3.6+ only]
zookeeper.min_latency (gauge)	The amount of time it takes for the server to respond to a client request. Shown as millisecond
zookeeper.netty_queued_buffer_capacity (gauge)	[zookeeper version 3.6+ only] Histogram of netty_queued_buffer_capacity
zookeeper.netty_queued_buffer_capacity_count (gauge)	[zookeeper version 3.6+ only] Total count of netty_queued_buffer_capacity
zookeeper.netty_queued_buffer_capacity_sum (gauge)	[zookeeper version 3.6+ only] Sum of netty_queued_buffer_capacity
zookeeper.node_changed_watch_count (gauge)	[zookeeper version 3.6+ only] Histogram of node_changed_watch_count
zookeeper.node_changed_watch_count_count (gauge)	[zookeeper version 3.6+ only] Total count of node_changed_watch_count
zookeeper.node_changed_watch_count_sum (gauge)	[zookeeper version 3.6+ only] Sum of node_changed_watch_count
zookeeper.node_children_watch_count (gauge)	[zookeeper version 3.6+ only] Histogram of node_children_watch_count
zookeeper.node_children_watch_count_count (gauge)	[zookeeper version 3.6+ only] Total count of node_children_watch_count
zookeeper.node_children_watch_count_sum (gauge)	[zookeeper version 3.6+ only] Sum of node_children_watch_count
zookeeper.node_created_watch_count (gauge)	[zookeeper version 3.6+ only] Histogram of node_created_watch_count
zookeeper.node_created_watch_count_count (gauge)	[zookeeper version 3.6+ only] Total count of node_created_watch_count
zookeeper.node_created_watch_count_sum (gauge)	[zookeeper version 3.6+ only] Sum of node_created_watch_count
zookeeper.node_deleted_watch_count (gauge)	[zookeeper version 3.6+ only] Histogram of node_deleted_watch_count
zookeeper.node_deleted_watch_count_count (gauge)	[zookeeper version 3.6+ only] Total count of node_deleted_watch_count
zookeeper.node_deleted_watch_count_sum (gauge)	[zookeeper version 3.6+ only] Sum of node_deleted_watch_count
zookeeper.nodes (gauge)	The number of znodes in the ZooKeeper namespace (the data). Shown as node
zookeeper.num_alive_connections (gauge)	The total count of client connections. Shown as connection
zookeeper.om_commit_process_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of om_commit_process_time_ms
zookeeper.om_commit_process_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of om_commit_process_time_ms
zookeeper.om_commit_process_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of om_commit_process_time_ms
zookeeper.om_proposal_process_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of om_proposal_process_time_ms
zookeeper.om_proposal_process_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of om_proposal_process_time_ms
zookeeper.om_proposal_process_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of om_proposal_process_time_ms
zookeeper.open_file_descriptor_count (gauge)
zookeeper.outstanding_changes_queued (gauge)	[zookeeper version 3.6+ only]
zookeeper.outstanding_changes_removed (gauge)	[zookeeper version 3.6+ only]
zookeeper.outstanding_requests (gauge)	The number of queued requests when the server is under load and is receiving more sustained requests than it can process. Shown as request
zookeeper.outstanding_tls_handshake (gauge)	[zookeeper version 3.6+ only]
zookeeper.packets.received (gauge)	The number of packets received. Shown as packet
zookeeper.packets.sent (gauge)	The number of packets sent. Shown as packet
zookeeper.packets_received (gauge)	The number of packets received. Shown as packet
zookeeper.packets_sent (gauge)	The number of packets sent. Shown as packet
zookeeper.pending_session_queue_size (gauge)	[zookeeper version 3.6+ only] Histogram of pending_session_queue_size
zookeeper.pending_session_queue_size_count (gauge)	[zookeeper version 3.6+ only] Total count of pending_session_queue_size
zookeeper.pending_session_queue_size_sum (gauge)	[zookeeper version 3.6+ only] Sum of pending_session_queue_size
zookeeper.prep_process_time (gauge)	[zookeeper version 3.6+ only] Histogram of prep_process_time
zookeeper.prep_process_time_count (gauge)	[zookeeper version 3.6+ only] Total count of prep_process_time
zookeeper.prep_process_time_sum (gauge)	[zookeeper version 3.6+ only] Sum of prep_process_time
zookeeper.prep_processor_queue_size (gauge)	[zookeeper version 3.6+ only] Histogram of prep_processor_queue_size
zookeeper.prep_processor_queue_size_count (gauge)	[zookeeper version 3.6+ only] Total count of prep_processor_queue_size
zookeeper.prep_processor_queue_size_sum (gauge)	[zookeeper version 3.6+ only] Sum of prep_processor_queue_size
zookeeper.prep_processor_queue_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of prep_processor_queue_time_ms
zookeeper.prep_processor_queue_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of prep_processor_queue_time_ms
zookeeper.prep_processor_queue_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of prep_processor_queue_time_ms
zookeeper.prep_processor_request_queued (gauge)	[zookeeper version 3.6+ only]
zookeeper.process_cpu_seconds_total (gauge)	[zookeeper version 3.6+ only]
zookeeper.process_max_fds (gauge)	[zookeeper version 3.6+ only]
zookeeper.process_open_fds (gauge)	[zookeeper version 3.6+ only]
zookeeper.process_resident_memory_bytes (gauge)	[zookeeper version 3.6+ only] Shown as byte
zookeeper.process_start_time_seconds (gauge)	[zookeeper version 3.6+ only] Shown as second
zookeeper.process_virtual_memory_bytes (gauge)	[zookeeper version 3.6+ only] Shown as byte
zookeeper.propagation_latency (gauge)	[zookeeper version 3.6+ only] End-to-end latency for updates, from proposal on leader to committed-to-datatree on a given host
zookeeper.propagation_latency_count (gauge)	[zookeeper version 3.6+ only] End-to-end latency for updates, from proposal on leader to committed-to-datatree on a given host
zookeeper.propagation_latency_sum (gauge)	[zookeeper version 3.6+ only] End-to-end latency for updates, from proposal on leader to committed-to-datatree on a given host
zookeeper.proposal_ack_creation_latency (gauge)	[zookeeper version 3.6+ only] Histogram of proposal_ack_creation_latency
zookeeper.proposal_ack_creation_latency_count (gauge)	[zookeeper version 3.6+ only] Total count of proposal_ack_creation_latency
zookeeper.proposal_ack_creation_latency_sum (gauge)	[zookeeper version 3.6+ only] Sum of proposal_ack_creation_latency
zookeeper.proposal_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.proposal_latency (gauge)	[zookeeper version 3.6+ only] Histogram of proposal_latency
zookeeper.proposal_latency_count (gauge)	[zookeeper version 3.6+ only] Total count of proposal_latency
zookeeper.proposal_latency_sum (gauge)	[zookeeper version 3.6+ only] Sum of proposal_latency
zookeeper.quit_leading_due_to_disloyal_voter (gauge)	[zookeeper version 3.6+ only]
zookeeper.quorum_ack_latency (gauge)	[zookeeper version 3.6+ only] Histogram of quorum_ack_latency
zookeeper.quorum_ack_latency_count (gauge)	[zookeeper version 3.6+ only] Total count of quorum_ack_latency
zookeeper.quorum_ack_latency_sum (gauge)	[zookeeper version 3.6+ only] Sum of quorum_ack_latency
zookeeper.read_commit_proc_issued (gauge)	[zookeeper version 3.6+ only] Histogram of read_commit_proc_issued
zookeeper.read_commit_proc_issued_count (gauge)	[zookeeper version 3.6+ only] Total count of read_commit_proc_issued
zookeeper.read_commit_proc_issued_sum (gauge)	[zookeeper version 3.6+ only] Sum of read_commit_proc_issued
zookeeper.read_commit_proc_req_queued (gauge)	[zookeeper version 3.6+ only] Histogram of read_commit_proc_req_queued
zookeeper.read_commit_proc_req_queued_count (gauge)	[zookeeper version 3.6+ only] Total count of read_commit_proc_req_queued
zookeeper.read_commit_proc_req_queued_sum (gauge)	[zookeeper version 3.6+ only] Sum of read_commit_proc_req_queued
zookeeper.read_commitproc_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of read_commitproc_time_ms
zookeeper.read_commitproc_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of read_commitproc_time_ms
zookeeper.read_commitproc_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of read_commitproc_time_ms
zookeeper.read_final_proc_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of read_final_proc_time_ms
zookeeper.read_final_proc_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of read_final_proc_time_ms
zookeeper.read_final_proc_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of read_final_proc_time_ms
zookeeper.readlatency (gauge)	[zookeeper version 3.6+ only] Histogram of readlatency Read request latency
zookeeper.readlatency_count (gauge)	[zookeeper version 3.6+ only] Total count of readlatency Read request latency
zookeeper.readlatency_sum (gauge)	[zookeeper version 3.6+ only] Sum of readlatency Read request latency
zookeeper.reads_after_write_in_session_queue (gauge)	[zookeeper version 3.6+ only] Histogram of reads_after_write_in_session_queue
zookeeper.reads_after_write_in_session_queue_count (gauge)	[zookeeper version 3.6+ only] Total count of reads_after_write_in_session_queue
zookeeper.reads_after_write_in_session_queue_sum (gauge)	[zookeeper version 3.6+ only] Sum of reads_after_write_in_session_queue
zookeeper.reads_issued_from_session_queue (gauge)	[zookeeper version 3.6+ only] Histogram of reads_issued_from_session_queue
zookeeper.reads_issued_from_session_queue_count (gauge)	[zookeeper version 3.6+ only] Total count of reads_issued_from_session_queue
zookeeper.reads_issued_from_session_queue_sum (gauge)	[zookeeper version 3.6+ only] Sum of reads_issued_from_session_queue
zookeeper.request_commit_queued (gauge)	[zookeeper version 3.6+ only] Count of request commits queued
zookeeper.request_throttle_wait_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.requests_in_session_queue (gauge)	[zookeeper version 3.6+ only] Histogram of requests_in_session_queue
zookeeper.requests_in_session_queue_count (gauge)	[zookeeper version 3.6+ only] Total count of requests_in_session_queue
zookeeper.requests_in_session_queue_sum (gauge)	[zookeeper version 3.6+ only] Sum of requests_in_session_queue
zookeeper.response_packet_cache_hits (gauge)	[zookeeper version 3.6+ only]
zookeeper.response_packet_cache_misses (gauge)	[zookeeper version 3.6+ only]
zookeeper.response_packet_get_children_cache_hits (gauge)	[zookeeper version 3.6+ only]
zookeeper.response_packet_get_children_cache_misses (gauge)	[zookeeper version 3.6+ only]
zookeeper.revalidate_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.server_state (gauge)
zookeeper.server_write_committed_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of server_write_committed_time_ms
zookeeper.server_write_committed_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of server_write_committed_time_ms
zookeeper.server_write_committed_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of server_write_committed_time_ms
zookeeper.session_queues_drained (gauge)	[zookeeper version 3.6+ only] Histogram of session_queues_drained
zookeeper.session_queues_drained_count (gauge)	[zookeeper version 3.6+ only] Total count of session_queues_drained
zookeeper.session_queues_drained_sum (gauge)	[zookeeper version 3.6+ only] Sum of session_queues_drained
zookeeper.sessionless_connections_expired (gauge)	[zookeeper version 3.6+ only]
zookeeper.snap_count (gauge)	[zookeeper version 3.6+ only] Number of snap syncs performed
zookeeper.snapshottime (gauge)	[zookeeper version 3.6+ only] Histogram of snapshottime Time to write a snapshot
zookeeper.snapshottime_count (gauge)	[zookeeper version 3.6+ only] Total count of snapshottime Time to write a snapshot
zookeeper.snapshottime_sum (gauge)	[zookeeper version 3.6+ only] Sum of snapshottime Time to write a snapshot
zookeeper.stale_replies (gauge)	[zookeeper version 3.6+ only]
zookeeper.stale_requests (gauge)	[zookeeper version 3.6+ only]
zookeeper.stale_requests_dropped (gauge)	[zookeeper version 3.6+ only]
zookeeper.stale_sessions_expired (gauge)	[zookeeper version 3.6+ only]
zookeeper.startup_snap_load_time (gauge)	[zookeeper version 3.6+ only] Histogram of startup_snap_load_time
zookeeper.startup_snap_load_time_count (gauge)	[zookeeper version 3.6+ only] Total count of startup_snap_load_time
zookeeper.startup_snap_load_time_sum (gauge)	[zookeeper version 3.6+ only] Sum of startup_snap_load_time
zookeeper.startup_txns_load_time (gauge)	[zookeeper version 3.6+ only] Histogram of startup_txns_load_time
zookeeper.startup_txns_load_time_count (gauge)	[zookeeper version 3.6+ only] Total count of startup_txns_load_time
zookeeper.startup_txns_load_time_sum (gauge)	[zookeeper version 3.6+ only] Sum of startup_txns_load_time
zookeeper.startup_txns_loaded (gauge)	[zookeeper version 3.6+ only] Histogram of startup_txns_loaded
zookeeper.startup_txns_loaded_count (gauge)	[zookeeper version 3.6+ only] Total count of startup_txns_loaded
zookeeper.startup_txns_loaded_sum (gauge)	[zookeeper version 3.6+ only] Sum of startup_txns_loaded
zookeeper.sync_process_time (gauge)	[zookeeper version 3.6+ only] Histogram of sync_process_time
zookeeper.sync_process_time_count (gauge)	[zookeeper version 3.6+ only] Total count of sync_process_time
zookeeper.sync_process_time_sum (gauge)	[zookeeper version 3.6+ only] Sum of sync_process_time
zookeeper.sync_processor_batch_size (gauge)	[zookeeper version 3.6+ only] Histogram of sync_processor_batch_size
zookeeper.sync_processor_batch_size_count (gauge)	[zookeeper version 3.6+ only] Total count of sync_processor_batch_size
zookeeper.sync_processor_batch_size_sum (gauge)	[zookeeper version 3.6+ only] Sum of sync_processor_batch_size
zookeeper.sync_processor_queue_and_flush_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of sync_processor_queue_and_flush_time_ms
zookeeper.sync_processor_queue_and_flush_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of sync_processor_queue_and_flush_time_ms
zookeeper.sync_processor_queue_and_flush_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of sync_processor_queue_and_flush_time_ms
zookeeper.sync_processor_queue_flush_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of sync_processor_queue_flush_time_ms
zookeeper.sync_processor_queue_flush_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of sync_processor_queue_flush_time_ms
zookeeper.sync_processor_queue_flush_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of sync_processor_queue_flush_time_ms
zookeeper.sync_processor_queue_size (gauge)	[zookeeper version 3.6+ only] Histogram of sync_processor_queue_size
zookeeper.sync_processor_queue_size_count (gauge)	[zookeeper version 3.6+ only] Total count of sync_processor_queue_size
zookeeper.sync_processor_queue_size_sum (gauge)	[zookeeper version 3.6+ only] Sum of sync_processor_queue_size
zookeeper.sync_processor_queue_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of sync_processor_queue_time_ms
zookeeper.sync_processor_queue_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of sync_processor_queue_time_ms
zookeeper.sync_processor_queue_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of sync_processor_queue_time_ms
zookeeper.sync_processor_request_queued (gauge)	[zookeeper version 3.6+ only]
zookeeper.time_waiting_empty_pool_in_commit_processor_read_ms (gauge)	[zookeeper version 3.6+ only] Histogram of time_waiting_empty_pool_in_commit_processor_read_ms
zookeeper.time_waiting_empty_pool_in_commit_processor_read_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of time_waiting_empty_pool_in_commit_processor_read_ms
zookeeper.time_waiting_empty_pool_in_commit_processor_read_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of time_waiting_empty_pool_in_commit_processor_read_ms
zookeeper.timeouts (rate)	The rate of timeouts the Datadog Agent received when trying to collect stats. Shown as occurrence
zookeeper.tls_handshake_exceeded (gauge)	[zookeeper version 3.6+ only]
zookeeper.unrecoverable_error_count (gauge)	[zookeeper version 3.6+ only]
zookeeper.updatelatency (gauge)	[zookeeper version 3.6+ only] Histogram of updatelatency Update request latency
zookeeper.updatelatency_count (gauge)	[zookeeper version 3.6+ only] Total count of updatelatency Update request latency
zookeeper.updatelatency_sum (gauge)	[zookeeper version 3.6+ only] Sum of updatelatency Update request latency
zookeeper.uptime (gauge)	[zookeeper version 3.6+ only] Uptime that a peer has been in a table leading/following/observing state
zookeeper.watch_count (gauge)
zookeeper.write_batch_time_in_commit_processor (gauge)	[zookeeper version 3.6+ only] Histogram of write_batch_time_in_commit_processor
zookeeper.write_batch_time_in_commit_processor_count (gauge)	[zookeeper version 3.6+ only] Total count of write_batch_time_in_commit_processor
zookeeper.write_batch_time_in_commit_processor_sum (gauge)	[zookeeper version 3.6+ only] Sum of write_batch_time_in_commit_processor
zookeeper.write_commit_proc_issued (gauge)	[zookeeper version 3.6+ only] Histogram of write_commit_proc_issued
zookeeper.write_commit_proc_issued_count (gauge)	[zookeeper version 3.6+ only] Total count of write_commit_proc_issued
zookeeper.write_commit_proc_issued_sum (gauge)	[zookeeper version 3.6+ only] Sum of write_commit_proc_issued
zookeeper.write_commit_proc_req_queued (gauge)	[zookeeper version 3.6+ only] Histogram of write_commit_proc_req_queued
zookeeper.write_commit_proc_req_queued_count (gauge)	[zookeeper version 3.6+ only] Total count of write_commit_proc_req_queued
zookeeper.write_commit_proc_req_queued_sum (gauge)	[zookeeper version 3.6+ only] Sum of write_commit_proc_req_queued
zookeeper.write_commitproc_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of write_commitproc_time_ms
zookeeper.write_commitproc_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of write_commitproc_time_ms
zookeeper.write_commitproc_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of write_commitproc_time_ms
zookeeper.write_final_proc_time_ms (gauge)	[zookeeper version 3.6+ only] Histogram of write_final_proc_time_ms
zookeeper.write_final_proc_time_ms_count (gauge)	[zookeeper version 3.6+ only] Total count of write_final_proc_time_ms
zookeeper.write_final_proc_time_ms_sum (gauge)	[zookeeper version 3.6+ only] Sum of write_final_proc_time_ms
zookeeper.znode_count (gauge)	The number of znodes in the ZooKeeper namespace (the data). Shown as node
zookeeper.zxid.count (gauge)
zookeeper.zxid.epoch (gauge)

Deprecated metrics

The following metrics are still sent but will be removed eventually:

zookeeper.bytes_received
zookeeper.bytes_sent

Events

The ZooKeeper check does not include any events.

Service Checks

zookeeper.ruok

Sends ruok to the monitored node. Returns OK with an imok response, WARN in the case of a different response and CRITICAL if no response is received.

Statuses: ok, warning, critical

zookeeper.mode

Compares the current mode given by the stat command to the expected mode configured in zk.yaml. Returns OK when the modes match and CRITICAL otherwise. Only returns a status when there’s a value for expected_mode in zk.yaml

Statuses: ok, critical

Troubleshooting

Need help? Contact Datadog support.