It would be appropriate to change the warning to warn about concurrent reads as 
well. That would help highlight performance risks.

-Rob


-----Original Message-----
From: Michael Dürig [mailto:[email protected]] 
Sent: Wednesday, April 09, 2014 12:27 AM
To: [email protected]
Subject: Re: Session concurrency warning



On 9.4.14 3:20 , Alexander Klimetschek wrote:
> if I get this warning below, does "another thread is concurrently 
> writing" mean that the other threads is using session WRITE methods?

The message is actually misleading if not wrong. This warning is issued if 
*this* thread does a write operation while another thread is already doing some 
other operation (read or write). I logged 
https://issues.apache.org/jira/browse/OAK-1703.

Michael

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