CDP CLI commands for generating a diagnostic bundle
Cloudera includes a set of CLI commands that allow you to generate an on-demand diagnostic bundle that gathers logs and command output from your Data Lake, FreeIPA, or Cloudera Data Hub cluster VMs. The bundle can also be used for support case troubleshooting if the logs captured via the equivalent UI option are not sufficient.
For each resource type (freeipa, datalake
, or
datahub
), there are two commands that you can use:
get-<resource-type>-log-descriptors
- Allows you to obtain a list of logs that get collected for diagnostics.collect-<resource-type>-diagnostics
- Triggers diagnostics collection. You need to provide a CRN of a resource (Data Lake, FreeIPA, or Cloudera Data Hub cluster), a description, and a destination for the bundle.list-<resource-type>-diagnostics
- Lists the running or finished diagnostic operations.cancel-<resource-type>-diagnostics
- Stops the ongoing diagnostics operations.
Required role: You need the EnvironmentAdmin or Owner role for the environment for which you would like to create a bundle.
Prerequisites
- FreeIPA deployment time must be September 2020 or later.
- The VMs from which diagnostic data is to be collected must be running.
- Salt minions must be started properly on the Cloudera Manager nodes.
get-<resource-type>-log-descriptors
The get-<resource-type>-log-descriptors
commands allow you to
obtain a list of logs that get collected. These commands can also be used to obtain available
log label/path pairs that can be provided in the
collect-<resource-type>-diagnostics
command via the
--labels
parameter in order to limit the command output.
The output is printed in the Event History tab on the UI in Data Lake or Cloudera Data Hub details. Since there is no FreeIPA Event History on the UI, in case of FreeIPA the output is saved to /var/log/salt/minion, which can be accessed from your logs location in cloud storage.
Commands
To gather available log label/path pairs, use one of the following commands:
cdp environments get-freeipa-log-descriptors
cdp datalake get-datalake-log-descriptors
cdp datahub get-datahub-log-descriptors
collect-<resource-type>-diagnostics
The collect-<resource-type>-diagnostics
commands trigger
log collection. You need to provide a CRN of a resource (Data Lake, FreeIPA, or Cloudera Data Hub cluster), a description, and a destination for the
bundle. The generated bundle can be saved to cloud storage or to a local file. The
command progress (including the location where the bundle is generated) is printed in
the Event History tab on the UI.
Prerequisites
- If you would like to use cloud storage as a destination, ensure that the Logger and IDBroker instance profiles (on AWS) or managed identities (on Azure) are able to write to the specified cloud storage location.
- If you would like to use Cloudera support as a destination, your network must be
able to reach the following destinations:
https://dbusapi.us-west-1.altus.cloudera.com
if your CDP account runs in Control Plane region us-west-1, orhttps://api.<control-plane-region>.cdp.cloudera.com
if your CDP account runs in any other Control Plane region (only required if your cloud provider is AWS) andhttps://cloudera-dbus-prod.s3.amazonaws.com
(required even if your cloud provider is not AWS).
Example commands
To run collection with salt
script included and update cdp-telemetry package on the nodes, use one of the following
commands, Replace <DESCRIPTION>
with an actual description and the
<NAME-OR-CRN>
, <DATALAKE-CRN>
, and
<DATAHUBCRN>
with an actual CRN.
To send the diagnostics bundle to cloud storage, use:
cdp environments collect-freeipa-diagnostics --environment-name <NAME-OR-CRN> \
--description <DESCRIPTION> \
--destination CLOUD_STORAGE \
--include-salt-logs
cdp datalake collect-datalake-diagnostics --crn <DATALAKE-CRN> \
--description <DESCRIPTION> \
--destination CLOUD_STORAGE \
--include-salt-logs
cdp datahub collect-datahub-diagnostics --crn <DATAHUB-CRN> \
--description <DESCRIPTION> \
--destination CLOUD_STORAGE \
--include-salt-logs
To send the diagnostic bundle directly to Cloudera support, use:
cdp datahub collect-datahub-diagnostics --crn <DATAHUB-CRN> \
--description <DESCRIPTION> \
--case-number <SUPPORT_CASE_NUMBER>
--destination SUPPORT \
--update-package \
--include-salt-logs
To collect only specific custom logs (such as /var/log/audit/audit.log used in this example), use:
cdp environments collect-freeipa-diagnostics --environment-name <name> \
--description <DESCRIPTION>
--destination CLOUD_STORAGE \
--additional-logs path=/var/log/audit/audit.log,label=audit \
--labels audit
If you run this command:
- Logs specified under
--additional-logs
will be collected - Due to the specified label, all other logs will be filtered out and no other logs will be included in the bundle.
Required parameters
--environment-name
(for Data Lake or Cloudera Data Hub) or --crn
(for Cloudera Data Hub)Provide a CRN of your Data
Lake, FreeIPA, or Cloudera Data Hub cluster. You can obtain it by
running a list or describe command on your resource.
--description
Provide a description for the diagnostics
bundle.
--destination
Specify a destination of the
diagnostics collection: SUPORT, CLOUD_STORAGE, or LOCAL:
- SUPPORT: Sends diagnostic bundles directly to Cloudera support.
- CLOUD_STORAGE: Saves collected diagnostics into a tar.gzfile file and
uploads it to your logs cloud storage location specified during environment
registration, to a PATH that looks like
this:
The “cluster logs” directory is only created if your cloud storage location is a bucket. If your cloud storage location includes a directory within a bucket, then the “cluster logs” directory is not created.cluster-logs/<CLUSTER-TYPE>/<CLUSTER-NAME>_<UUID PART-OF-CLUSTER-CRN>/diagnostics.
- LOCAL: Diagnostics will be collected to a compressed file, and saved to
/var/lib/filecollector
on every cluster node.
Optional parameters
--labels
You
can use this to pass a list of labels that can be used to filter collected logs. This is
useful if instead of including all logs, you would only include certain specific logs in
the bundle. This list can be obtained from the get-<cluster-type>-log-descriptors
response.
--additional-logs
One or more additional VM
log objects that will be included in the diagnostics bundle. A VM log object is a
path/label pair. Cloudera support may ask you to provide specific values
here.
--hosts
Run diagnostics only the specified hosts (both IP
addresses or fqdns are valid).
--host-groups
Run diagnostics only
on the those hosts that are included in the specified host
groups.
--exclude-hosts
Same as the --hosts
filter but for exclusion.
--skip-unresponsive-hosts
Skip unhealthy
hosts from the diagnostics collection (where "unhealthy" means that salt minion is
unresponsive). If this is not used, the diagnostics will fail if there is an unresponsive
host during diagnostics. --include-salt-logs
If this is set,
salt minion/master logs will be included in the diagnostic bundle.
--case-number
Allows you to provide a support case number.
--update-package
If this is set, during diagnostics
collection, the required third party applications will be downloaded and updated on the
VM nodes. This requires internet access.
--storage-validation
You can use this if using CLOUD_STORAGE as a
destination. If this is set, cloud storage write validation check will happen during an
initial phase of the diagnostics collection.
--help
CLI option. list-<resource-type>-diagnostics
Lists the running or finished diagnostic operations.
cdp environments list-freeipa-diagnostics --environment-name <NAME-OR-CRN>
cdp datalake list-datalake-diagnostics --crn <DATALAKE-CRN>
cdp datahub list-datahub-diagnostics --crn <DATAHUB-CRN>
cancel-<resource-type>-diagnostics
Stops the ongoing diagnostics operations.
cdp environments cancel-freeipa-diagnostics --environment-name <NAME-OR-CRN>
cdp datalake cancel-datalake-diagnostics --crn <DATALAKE-CRN>
cdp datahub cancel-datahub-diagnostics --crn <DATAHUB-CRN>