sahilTakiar commented on issue #597: HDFS-3246: pRead equivalent for direct 
read path
URL: https://github.com/apache/hadoop/pull/597#issuecomment-488124086
 
 
   Hadoop QA is still hitting these memory issues, so I ran the full suite of 
`hadoop-hdfs` tests on my local machine against this patch. I can reproduce the 
`TestWebHdfsTimeouts` although that seems to fail relatively often in Hadoop QA 
(reproduce on trunk as well when running on my local machine). 
`TestBPOfferService` hit a OOM issue twice out of several runs, so it seems 
intermittent.
   
   I looped `TestFileChecksum`, `TestDFSStripedOutputStreamWithRandomECPolicy`, 
and the tests in this patch, but was not able to re-produce the memory issue.
   
   I took a quick look at the heap dump as well and didn't see anything that 
was related to this patch. Interestingly, most of the memory is consumed by 
Mockito.

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