Events Healthcheck Commands

The events subcommand runs health checks for Pulse ad-events services and displays information from the Pulse Events database (NATS). It enables you to view, manage, and troubleshoot event streams, consumers, and object stores.

To view all available subcommands and flags, run:

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accelo admin hc events --help
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Available Subcommands

consumer
delete
update
view
object

Default Behavior

By default, the following command lists all event streams available in NATS:

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accelo admin hc events
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Sample Output

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INFO: Running health check for Events DB╔══════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗║ Events DB                                                                                                                        ║╠════════════════════════════════════════════╦════════════════╦════════╦═════════════════════════════════════════╦═════════════════╣║ STREAM NAME                                ║ TOTAL MESSAGES ║ OFFSET ║ LAST MESSAGE TIMESTAMP                  ║ TOTAL CONSUMERS ║╠════════════════════════════════════════════╬════════════════╬════════╬═════════════════════════════════════════╬═════════════════╣║ hive_queries_events_smokey                 ║              0 ║      0 ║ 0001-01-01 00:00:00 +0000 UTC           ║               1 ║║ impala_agent_events_smokey                 ║           6503 ║   6503 ║ 2025-01-30 11:25:20.135115216 +0000 UTC ║               0 ║║ impala_coord_events_offset_smokey          ║              0 ║      0 ║ 0001-01-01 00:00:00 +0000 UTC           ║               0 ║║ yarn_containers_rminterface_metrics_smokey ║              0 ║      0 ║ 0001-01-01 00:00:00 +0000 UTC           ║               1 ║╚════════════════════════════════════════════╩════════════════╩════════╩═════════════════════════════════════════╩═════════════════╝
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Commonly Used Flags

Flag	Description
-s <stream-name>	Displays detailed information for a specific stream
-d <url>	URL where `ad-events` is running (default: `http://localhost:19009`)

Consumer Commands

List Consumers

Lists all consumers for a given stream.

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accelo admin hc events consumer -s <stream-name>
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Consumer Info

Displays detailed information for a specific consumer.

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accelo admin hc events consumer info -s <stream-name> -c <consumer-name>
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For example:

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accelo admin hc events consumer info -s impala_agent_events_odp_smokey -c impala_coord_odp_smokey
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Sample output:

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╔════════════════════════════════════════════════════════════╗║ Consumer Info                                              ║╠══════════════════╦═════════════════════════════════════════╣║ Consumer Name    ║ impala_coord_odp_smokey                 ║║ Stream Name      ║ impala_agent_events_odp_smokey          ║║ Durable Name     ║ impala_coord_odp_smokey                 ║║ Pending Messages ║ 0                                       ║║ Ack Pending      ║ 0                                       ║║ Waiting          ║ 1                                       ║║ Redelivered      ║ 0                                       ║║ Date Created     ║ 2025-01-31 06:12:46.366355429 +0000 UTC ║╚══════════════════╩═════════════════════════════════════════╝
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Delete Consumer

Deletes a consumer from a stream.

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accelo admin hc events consumer delete -s <stream-name> -c <consumer-name>
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To verify deletion, run the consumer list command again.

Delete Stream

Deletes a stream from NATS.

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accelo admin hc events delete -s <stream-name>
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To confirm deletion, rerun the stream list command.

Update Stream

Updates the configuration of an existing stream.

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accelo admin hc events update -s <stream-name> -m <max-messages>
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For example:

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accelo admin hc events update -s impala_agent_events_odp_smokey -m 10000
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Sample Output:

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INFO: Stream 'impala_agent_events_odp_smokey' updated successfully
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View Stream Data

Displays subject data for a given offset.

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accelo admin hc events view -s <stream-name> -o <offset>
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For example:

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accelo admin hc events view -s yarn_apps_events_last_probe_odp_smokey -o 8591
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Sample Output:

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​x
 
[8593] Subject: yarn_apps_events_last_probe_odp_smokey Received: 2025-02-03T11:27:04+05:30​1738562194018,1738562224058
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Object Store Commands

The object subcommand manages NATS object stores associated with events.

List Object Stores

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accelo admin hc events object
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Sample Output:

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INFO: List of object stores:impala_profiles_events_odp_kafka3ximpala_testtest
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If the name of the object store is provided along with the above mentioned command then it returns object Store info.

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[root@odppulse401:acceldata (ad-default)]$ ./accelo admin hc events object -s impala_profiles_events_odp_kafka3xINFO: objectStore 'impala_profiles_events_odp_kafka3x' info:BucketName: impala_profiles_events_odp_kafka3xReplica: 1TTL: 1.00 daysSealed: falseSize: 1547184623 bytes
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Object Store Info

Displays details for a specific object store.

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accelo admin hc events object -s <object-store-name>
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Delete Object Store

Deletes an object store, if it exists.

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accelo admin hc events object delete -s <object-store-name>
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Watch Object Store

Streams live events for an object store.

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accelo admin hc events object watch -s <object-store-name>
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List Objects

Lists all objects in an object store.

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accelo admin hc events object list -s <object-store-name>
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Get Object Data

Loads object data into memory. You can redirect the output to a file if needed.

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accelo admin hc events object get -s <object-store-name> -c <object-name>
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Edit Object Store Metadata

Updates object store metadata such as size, replicas, or TTL.

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accelo admin hc events object edit -s <object-store-name> [flags]
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Available flags:

Flag	Description
-m, --max-bytes	Maximum object store size (default: `-1`)
-r, --replicas	Number of replicas (default: `1`)
-t, --ttl	Time to live in seconds (default: `86400`)

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