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Data Store Deployment Troubleshooting
Hardware Deployment Troubleshooting
For issues with deploying or configuring your SMC or Flow Collectors, see the
Stealthwatch x2xx Series Hardware (with Data Store) Appliance Installation Guide
and the
Stealthwatch System Configuration Guide
for more information.
Data Store Troubleshooting
Note that the Data Store reserves up to 40% of the available storage space to maintain
the Data Store. At a minimum, 60% of the total space is available for flow storage.
Vertica Analytics Platform does not automatically restart
after a Data Node loses power and reboots
If a Data Node loses power unexpectedly, and you reboot the appliance, the Vertica
Analytics Platform (Vertica) instance on that Data Node may not automatically restart,
due to possible corrupted data. If there are still enough running Data Nodes to allow the
Data Store to continue running, the Data Store continues ingesting data from the Flow
Collectors. However, you need to restart the Data Node as soon as possible, to allow it
to rejoin the Data Store, retrieve missed data from adjacent Data Nodes, and catch up
with the rest of the Data Nodes.
In this situation, log into the Data Node and force a manual Vertica restart, which deletes
corrupted data and allows Vertica to properly restart.
In addition, you may need to update the Data Node's power restore policy before it
restarts. If the power restore policy is set to Power Off, you must manually restart the
Data Node after power loss. See the
UCS C-Series GUI Configuration Guide
for more
information on configuring the power restore policy in CIMC.
Before You Begin
l
Log into the Data Node's CLI as root.
Procedure
1.
Copy the following command and paste it into a text editor:
tail /lancope/var/database/dbs/sw/v_sw_
[node_name]
_
catalog/ErrorReport.txt
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Data Store Deployment Troubleshooting