jwitko commented on code in PR #13747:
URL: https://github.com/apache/druid/pull/13747#discussion_r1106323308


##########
helm/druid/values.yaml:
##########
@@ -193,7 +233,7 @@ historical:
     druid_processing_numMergeBuffers: 2
     druid_processing_numThreads: 1
     # druid_monitoring_monitors: 
'["org.apache.druid.client.cache.CacheMonitor", 
"org.apache.druid.server.metrics.HistoricalMetricsMonitor", 
"org.apache.druid.server.metrics.QueryCountStatsMonitor"]'
-    # druid_segmentCache_locations: 
'[{"path":"/var/druid/segment-cache","maxSize":300000000000}]'
+    # druid_segmentCache_locations: 
'[{"path":"/opt/druid/var/druid/segment-cache","maxSize":300000000000}]'

Review Comment:
   That is the bullet point in the description 
   ```
   Fix historical commented config druid_segmentCache_locations to match PVC 
mount path. In it's current form it breaks the historical pod when uncommented 
due to lack of permissions to create directory.
   ```
   The container did not have permissions to create/write to 
`/var/druid/segment-cache`.  `/opt/druid/var/driuid/segment-cache` is inside of 
the defined PVC mounted volume path and so the application would have the 
ability to write there as well it will be captured by the persistent volume and 
persist through pod restarts.



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