arina-ielchiieva commented on a change in pull request #2013: Clean up a bit, 
add example for s3 storage of query profiles
URL: https://github.com/apache/drill/pull/2013#discussion_r388146977
 
 

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 File path: 
_docs/configure-drill/configuration-options/040-persistent-configuration-storage.md
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 @@ -18,32 +18,25 @@ modes:
 
 ## Configuring ZooKeeper PStore
 
-Drill uses ZooKeeper to
-store persistent configuration data. The ZooKeeper PStore provider stores all
-of the persistent configuration data in ZooKeeper except for query profile
-data. The ZooKeeper PStore provider offloads query profile data to the Drill 
log directory on Drill nodes. 
+Drill uses ZooKeeper to store persistent configuration data. The ZooKeeper 
PStore provider stores all of the persistent configuration data in ZooKeeper 
except for query profile data. By default, drill stores query profile data to 
the Drill log directory on Drill nodes. 
 
-You need to configure the ZooKeeper PStore to use the Drill Web UI when 
running multiple Drillbits. 
+If you are running multiple drillbits, it is likely that the log folder is not 
shared between them. In this case each drillbit will only have access to 
profiles for the queries where it was the foreman.  To make query profiles 
visible globally, configure drill to use a shared location for query profiles 
by setting the `drill.exec.sys.store.provider.zk.blobroot` in 
`drill-override.conf`.
 
 Review comment:
   ```suggestion
   If you are running multiple drillbits, it is likely that the log folder is 
not shared between them. In this case each drillbit will only have access to 
profiles for the queries where it was the foreman. To make query profiles 
visible globally, configure drill to use a shared location for query profiles 
by setting the `drill.exec.sys.store.provider.zk.blobroot` in 
`drill-override.conf`.
   ```

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