DataStax Agent configuration

Whether or not to use SSL communication between the agent and opscenterd. Affects both the STOMP connection and agent HTTP server. Corresponds to [agents].use_ssl in opscenterd.conf. Setting this option to true turns on SSL connections. Example: use_ssl: true

The stomp_port used by opscenterd. Example: stomp_port: 61620

Reachable IP address of the opscenterd machine. The connection made will be on stomp_port. Example: stomp_interface: 127.0.0.1

Sets the time it takes to detect and report the stomp connection status of agents after restarting OpsCenter.

Default: 30 seconds

Example for large clusters: stomp-setup-timeout: 120

For more information, see Configuring for very large clusters.

The IP used to identify the node. If broadcast_address is set in cassandra.yaml, this IP should match that address. Otherwise, it is typically the same as listen_address in cassandra.yaml. A good check is to confirm that this address is the same as the address output by the nodetool ring tool. Example: local_interface: 172.10.0.2

The IP that the agent HTTP server listens on. In a multiple region deployment, this is typically a private IP. Default: Matches rpc_interface (native_transport_interface) from cassandra.yaml. Example: agent_rpc_interface: 172.10.0.2

The IP that the central OpsCenter process uses to connect to the DataStax agent. Default: First available resolvable address in this order: broadcast_rpc_address (native_transport_broadcast_address), rpc_address (native_transport_address), and listen_address from cassandra.yaml. Example: agent_rpc_broadcast_address: 172.10.0.2

The length of time, in seconds, between polling attempts to capture information that changes infrequently. Default value: 300

The length of time, in seconds, between polling attempts to capture rapidly changing realtime information. Default value: 5

The length of time, in seconds, between polling attempts to capture information that changes frequently. Default value: 10

Enables or disables the swagger UI for the agent API. Example: swagger_enabled: true

The SSL keystore location that the DataStax Agents use to connect to opscenterd. Example: opscenter_ssl_keystore: /etc/opscenter/conf/.keystore

The SSL keystore password that the agents use to connect to opscenterd. Example: opscenter_ssl_keystore_password: keystore-pass [This field may be encrypted for additional security.]

The path to the truststore file that the agents use to connect to opscenterd. Example: opscenter_ssl_truststore: /etc/opscenter/conf/.truststore

The SSL truststore password that the agents use to connect to opscenterd. Default: Uses the keystore password if an SSL truststore password is not specified. Example: opscenter_ssl_truststore_password: trust-pass [This field may be encrypted for additional security.]

Instructs the agent to reject certificates from opscenterd when the certificate subject does not match the server’s ip. This option is false by default, which means the agent attempts subject validation first. If that fails, the agent logs a warning and retries the connection without subject validation. In a later version of OpsCenter, the default will change to true. Example: opscenter_ssl_strict_subject_validation: true

The length of time, specified in seconds, between attempts to poll metrics. Example: poll_period: 60

The length of time, in seconds, to wait between attempts to poll the disk for usage. Example: disk_usage_update_period: 60

The time-to-live (TTL) for data points stored in rollup states before data is collected in the rollup60 table. Default: (* 86400 3) Example: rollup_state_ttl: 259200

Sets time-to-live (TTL) for rollups60 in seconds. A value of '0' prevents the data from expiring. Setting '-1' disables this rollup and prevents storing any data for it which might help reduce used disk space. Default: 604800 Example: rollups60_ttl: 604800

Sets time-to-live (TTL) for rollups300 in seconds. A value of '0' prevents the data from expiring. Setting '-1' disables this rollup and prevents storing any data for it which might help reduce used disk space. Default: 604800 Example: rollups300_ttl: 2419200

Sets time-to-live (TTL) for rollups7200 in seconds. A value of '0' prevents the data from expiring. Setting '-1' disables this rollup and prevents storing any data for it which might help reduce used disk space. Default: 31536000 Example: rollups7200_ttl: 31536000

Sets time-to-live (TTL) for rollups86400 in seconds. A value of '0' prevents the data from expiring. Setting '-1' disables this rollup and prevents storing any data for it which might help reduce used disk space. Default: 0 Example: rollups86400_ttl: 0

Maximum number of metrics that can be saved to Cassandra over the [rollup_rate_unit] period of time.this should be at least ([#tables] * 40) + 200 per minDefault: 200 (so 200/sec with default rollup_rate_unit) Example: rollup_rate: 200

Unit of time for rollup_rate. Choose from microsecond, millisecond, second, minute, hour, day, or month. Default: second Example: rollup_rate_unit: second

Enable or disable storing metrics in a monitored or a separate storage DSE cluster. Metrics are stored in a DSE monitored or storage cluster by default. Default: false. Example: bypass_dse_metrics_storage: true

Host used to connect to local JMX server. The default setting is localhost. This information will be sent by opscenterd for convenience, but can be configured locally as needed. Example: jmx_host: 127.0.0.1

Port used to connect to local JMX server. The default setting is 7199. This information will be sent by opscenterd for convenience, but can be configured locally as needed. Example: jmx_port: 7199

The username used to connect to the local JMX server. Example: jmx_user: jmx-username

The password used to connect to the local JMX server. Example: jmx_pass: jmx-password [This field may be encrypted for additional security.]

The number of seconds to wait for an available JMX connection before timing out. Default: 10. Example: jmx_queue_poll_timeout: 10

The length of time, in seconds, between sending agent health information. Example: status_reporting_interval: 20

The amount of time in milliseconds to wait for disk operations when collecting metrics. Default: 5000. Example: disk_wait: 5000

Whether or not to back track the path if device look up fails. This approach is know to resolve device look up issues for users running Vormetric disk encryption. Default: false.

The ec2 metadata api host, used to determine information about this node, if it is on ec2. Example: ec2_metadata_api_host: 169.254.169.254

Whether or not to collect and store metrics for the local node. Setting this option to false turns off metrics collection. Default: true. Example: metrics_enabled: true

The size of the threadpool used for collecting metrics over JMX. Example: jmx_metrics_threadpool_size: 6

A comma-separated list of keyspaces ignored by metrics collection. Example: metrics_ignored_keyspaces: ks1, ks2, ks3

A comma-separated list of tables (formerly referred to as column families) ignored by metrics collection. Example: metrics_ignored_column_families: ks1.cf1, ks1.cf2, ks2.cf1

A comma separated list of solr cores that will be ignored by metric collection. Example: metrics_ignored_solr_cores: ks1.cf1, ks1.cf2, ks2.cf1

The DataStax Enterprise node or nodes responsible for storing OpsCenter data. By default, this will be the local node, but may be configured to store data on a separate cluster. The hosts option accepts an array of strings specifying the IP addresses of the node or nodes. For example, ["1.2.3.4"] or ["1.2.3.4", "1.2.3.5"]. Example: hosts: ["127.0.0.1"]

Port used to connect to the storage cassandra node. The native transport port. Example: cassandra_port: 9042

The Username used to connect to storage cassandra when authentication is enabled. Example: cassandra_user: cassandra

The password used to connect to storage cassandra when authentication is enabled. Example: cassandra_pass: cassandra [This field may be encrypted for additional security.]

The maximum time in ms that the agent will wait between cassandra reconnect attempts. Example: max_reconnect_time: 15000

The maximum number of repairs that may be pending, exceeding this number blocks new repairs. Example: max_pending_repairs: 5

The SSL keystore location for the storage cluster that agents use to connect to CQL. Example: ssl_keystore: /etc/dse/conf/.keystore

The SSL keystore password for the storage cluster that agents use to connect to CQL. Example: ssl_keystore_password: keystore-pass [This field may be encrypted for additional security.]

The SSL truststore location for the storage cluster that agents use to connect to CQL. Example: ssl_truststore: /etc/dse/conf/.truststore

The SSL truststore password for the storage cluster that agents use to connect to CQL. Example: ssl_truststore_password: truststore-pass [This field may be encrypted for additional security.]

Port used to connect to the monitored cassandra node. The native transport port. Example: monitored_cassandra_port: 9042

The Username used to connect to monitored cassandra when authentication is enabled. Example: monitored_cassandra_user: cassandra

The password used to connect to monitored cassandra when authentication is enabled. Example: monitored_cassandra_pass: cassandra-pass [This field may be encrypted for additional security.]

The SSL keystore location for the monitored cluster that agents use to connect to CQL. Example: monitored_ssl_keystore: /etc/dse/conf/.keystore

The SSL keystore password for the monitored cluster that agents use to connect to CQL. Example: monitored_ssl_keystore_password: keystore-pass [This field may be encrypted for additional security.]

The SSL truststore location for the monitored cluster that agents use to connect to CQL. Example: monitored_ssl_truststore: /etc/dse/conf/.truststore

The SSL truststore password for the monitored cluster that agents use to connect to CQL. Example: monitored_ssl_truststore_password: truststore-pass [This field may be encrypted for additional security.]

The Kerberos service name to use when using Kerberos authentication within DSE. Example: kerberos_service: cassandra-kerberos

The Kerberos keytab location when using Kerberos authentication within DSE. Example: kerberos_keytab_location: /path/to/keytab.keytab

The Kerberos client principal to use when using Kerberos authentication within DSE. Example: kerberos_client_principal: cassandra@hostname

The keyspace that the agent will use to store data. Example: storage_keyspace: OpsCenter

Provides an alias for the agent to use when sending node details to OpsCenter. The alias is useful when the agent is unable to get the localhost name from InetAddress.getLocalHost(). Example: alias: MyNodeOne

The maximum time in seconds that the agent waits while attempting to connect to the DSE cluster. Default: 30. Example: storage_dse_connection_timeout: 30

The maximum time in milliseconds that the agent waits for a storage node to return a response from a read request before considering said node unresponsive. Should be set higher than read_request_timeout_in_ms in cassandra.yaml. Example: storage_dse_host_read_timeout: 10000

The maximum time in seconds that the agent waits while attempting to connect to the DSE cluster. Default: 30. Example: monitored_dse_connection_timeout: 30

The maximum time in milliseconds that the agent waits for a monitored node to return a response from a read request before considering said node unresponsive. Should be set higher than read_request_timeout_in_ms in cassandra.yaml. Example: monitored_dse_host_read_timeout: 10000

The base directory where DataStax Enterprise or Cassandra is installed. When not set, the agent attempts to auto-detect the location but cannot do so in all cases. Example: cassandra_install_location: /usr/share/dse

The directory in which DSE logs reside. This is only used for the diagnostics tarball, and should only be set if these logs are in a location other than the default. Example: cassandra_log_location: /var/log/cassandra

The location of Cassandra’s binaries’ directory (cqlsh, nodetool, and sstableloader). When not set, the agent attempts to auto-detect the location. Example: cassandra_binary_location: /usr/bin

The location of Cassandra’s configuration files’ directory (cassandra.yaml, cassandra-env.sh). When not set, the agent attempts to auto-detect the location. Example: cassandra_conf_location: /etc/dse/cassandra

The location of directory that holds dse-env.sh. When not set, the agent attempts to auto-detect the location. Example: dse_env_location: /etc/dse

The location of directory that holds dsetool. When not set, the agent attempts to auto-detect the location. Example: dse_binary_location: /usr/bin

The location of directory that holds dse.yaml. When not set, the agent attempts to auto-detect the location. Example: dse_conf_location: /etc/dse

The location of directory that holds spark-env.sh. When not set, the agent attempts to auto-detect the location. Example: spark_conf_location: /etc/dse/spark

The location of directory that holds spark logs. When not set, the agent attempts to auto-detect the location. Example: spark_log_location: /var/log/spark

The location of directory that holds solr logs. When not set, the agent attempts to auto-detect the location. Example: solr_log_location: /var/log/cassandra

The path to the OpsCenter agent.log file and additional log files for the DataStax Agent. Example: agent_log_location: nodes/logs/opsagent

When unspecified, the agent will attempt to determine cassandra rpc_address by reading cassandra.yaml for rpc_address (native_transport_address). When specified, this agent lookup is skipped and the specified value is used instead. Example: cassandra_rpc_interface: 172.10.0.2

The port used for the http api endpoint. Example: api_port: 61621

Sets whether the DataStax Agent will be run using sudo or not. Setting this option to false means the agent will not use sudo, and the agent user will not run using elevated privileges. Setting this option to true means the agent will run using sudo, and elevated privileges. Default is true. Example: runs_sudo: true

The optional proxy host the client will connect through. Example: s3_proxy_host: localhost

The optional proxy port the client will connect through. Example: s3_proxy_port: 80

The size of the thread pool to allocate for destination processes Example: destination-transfer-pool-size: 10

The number of minutes threads in the destination processes thread pool can be idle before being shutdown. Threads that are shutdown will be created again as the demand on the thread pool increases. Example: destination-transfer-pool-keepalive: 2

The frequency in seconds with which status updates are sent to opscenterd during Restore operations in the Backup Service. Default: 60. Example: restore_req_update_period: 60

Determines how many concurrent threads to use when transferring file from a destination to a local node during the restore. In order to maintain semantics with prior versions of OpsCenter, the default value is 1. Example: restore_parallel_factor: 3

The directory where commitlogs are copied after they are written to disk from DSE. The DataStax Agents monitor this directory and move commitlogs to the configured destinations. After all destinations receive the relevant commit logs, the logs are moved to the backup_storage_dir. The default location is /var/lib/datastax-agent/commitlogs/. Example: backup_staging_dir: /var/lib/datastax-agent/commitlogs/

The directory where On Server commitlog backups are stored after being copied to all configured destinations. The directory will be cleaned based on a configured retention policy for an On Server location. The directory should be large enough to hold commitlogs for the length of the retention policy. The default location is /var/lib/datastax-agent/backups/. Example: backup_storage_dir: /var/lib/datastax-agent/backups/

The directory used to temporarily stage files when restoring. The default location is /var/lib/datastax-agent/tmp. Example: tmp_dir: /var/lib/datastax-agent/tmp/

The number of attempts to make when file download fails during a restore. Default: 3. Example: remote_backup_retries: 3

The timeout in milliseconds for the connection used to push backups to remote destinations. Default: 1000. Example: remote_backup_timeout: 1000

Enable using the AWS CLI instead of the AWS SDK when bulk loading backups to Amazon S3 locations. Default: false. Example: use_s3_cli: true

Value to pass as parallel-level into azcopy for azure backup destinations. If set to 0 the parameter wont be used. Default: 0 Example: azure_parallel_level: 36

Labs feature. When enabled OpenStack Swift destinations are enabled. Default: false. Example: use_swift_cli: true

Labs feature. Controls how long to wait before checking entity sync status to allow for eventual consistency. Default: 10. Example: swift_cli_sync_status_delay_seconds: 10

Labs feature. Controls whether to skip the file difference check after uploading files to a Swift destination. Default: false. Example: swift_cli_skip_diff_after_upload: true

Controls whether to skip the verification check using file listing post upload for backup destinations. Default: false. Example: skip_verification_after_upload: true

Initial delay in milliseconds to wait before checking if a file was successfully uploaded during a backup operation. This configuration option works in conjunction with the remote_verify_max option to distinguish between broken versus tardy backups when cleaning up SSTables. The remote_verify_initial_delay value doubles each time a file transfer validation failure occurs until the value exceeds the remote_verify_max value. Default: 1000 (1 second). Example: remote_verify_initial_delay: 1000

The maximum time period to wait after a file upload completed but is still unreadable from the remote destination. When this delay is exceeded, the transfer is considered failed. This configuration option works in conjunction with the remote_verify_initial_delay option to distinguish between broken versus tardy backups when cleaning up SSTables. Default: 30000 (30 seconds). Example: remote_verify_max: 300000

When set to true, a failed file transfer from the remote destination will not halt the restore process. process. A future restore attempt uses any successfully transferred files. Default: false. Example: restore_on_transfer_failure: false

The AWS region to use for remote backup transfers. Default: us-west-1. Example: remote_backup_region: us-west-1

The maximum number of attempts to upload a file or create a remote destination. Default: 3. Example: max_file_transfer_attempts: 30

The maximum heap size used by the sstableloader during restore operations. Default: 256M. Example: sstableloader_max_heap_size: 256M

The time in milliseconds to wait between issuing a query to trace and fetching trace events in the Performance Service Slow Query panel. Default: 300. Example: trace_delay: 300

The number of seconds to wait for a shell process such as nodetool to run before timing out. This setting is only used for generating a diagnostic tarball. Default: 30. Example: support_shell_timeout: 30

Setting graphite_host enables the forwarding of metrics to a graphite server at the given address. Leaving the graphite_host blank disables forwarding metrics to the graphite server. Example: graphite_host: graphite.myhost.com

Port for graphite’s plaintext protocol. Example: graphite_port: 2003

A prefix to insert metrics under. Example: graphite_prefix: opscenter

How far into the past in milliseconds to look for slow queries. Default: 3600000 (1,000 hours). Example: slow_query_past: 3600000

Time in seconds between slow query refreshes. Default: 5. Example: slow_query_refresh: 5

The limit to how many slow queries are fetched. Default: 500. Example: slow_query_fetch_size: 500

A list of keyspaces that the performance service slow query log will ignore. Default: ["OpsCenter" "dse_perf"] Example: slow_query_ignore: ["OpsCenter" "dse_perf"]

Specifies whether opscenter should attempt to decrypt sensitive config values. Default: False

Filename to use for the encryption key. If a custom name is not specified, opsc_system_key is used by default. Example: config_encryption_key_name: opsc_system_key

Path where the encryption key should be located. If unspecified, the directory of address.yaml is used by default. Example: config_encryption_key_path: /var/lib/datastax-agent/conf/

Size of running requests cache Example: running-request-cache-size: 500

Size of finished requests cache Example: finished-request-cache-size: 100

The tcp response timeout used for JMX specified in milliseconds. This value may need to be set very high in order for some operations to complete on nodes with large amounts of data. 0 for no timeout. Default: 240000 Example: tcp_response_timeout: 120000

The number of milliseconds to wait for a pong reply from opscenterd over stomp before timing out the ping. Example: pong_timeout_ms: 5000

The maximum amount of time in seconds to verify a destination can be written to and read from. Default: 60. Example: destination_pretest_timeout: 60