Apache Pinot Daily Email Digest (2021-03-26)

[Pinot Slack Email Digest <sn...@apache.org>]

### _#general_

  
 **@esalem:** @esalem has joined the channel  
 **@chandra09045:** @chandra09045 has joined the channel  
 **@adirohansriv:** @adirohansriv has joined the channel  
 **@zsolt:** in the documentation about Stream Ingestion with Upsert says that
the input stream has to be partitioned by the primary key. Is this a literal
requirement, or it just means that messages of the same PK must be in the same
partition, so it can be achieved with a different key too? ie. using only a
subset of pk fields, which is coarser partitioning but still has the property
of having all messages of a PK in one partition.  
**@g.kishore:** All messages of a key must be in same partition  

### _#random_

  
 **@esalem:** @esalem has joined the channel  
 **@chandra09045:** @chandra09045 has joined the channel  
 **@adirohansriv:** @adirohansriv has joined the channel  

###  _#feat-presto-connector_

  
 **@adirohansriv:** @adirohansriv has joined the channel  

###  _#troubleshooting_

  
 **@chxing:** Hi ALL  
 **@chxing:** I use PERCENTILEMV operations to select data , but no response,
anyone one know why?  
**@mayanks:** The timeUsed suggests it timed out after 10s  
**@mayanks:** You might want to try out the tdigest version of percentile
which might be faster (but approximate).  
 **@esalem:** @esalem has joined the channel  
 **@chandra09045:** @chandra09045 has joined the channel  
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###  _#pinot-dev_

  
 **@khushbu.agarwal:** Hi, is there a way to redirect the pinot server,
controller and broker logs to stdout in the kubernetes installation?  
**@g.kishore:** You have to configure the log4j appropriately  
**@khushbu.agarwal:** Also is there log roll-up in place? Or that needs to be
taken care of?  
**@g.kishore:** it should be adjusted  
**@g.kishore:** will be great if you can contribute the log4j file once you
get it working  
 **@adirohansriv:** @adirohansriv has joined the channel  
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