I don’t remember any specific bugs around the connection handling on NiFi side, but since there have been quite a few release since 0.6.1, it wouldn’t hurt to try upgrading.
On Thu, Jun 14, 2018 at 3:26 PM Rajesh Biswas <rajesh.bis...@bridgera.com> wrote: > Hello Bryan, > > Thank you very much for your response. > > We thoroughly checked the client piece of the code about managing the > opened connection. > > TCP Processor feeds the incoming data into Kafka Queue to inject the data > into our system. > > Do you suggest is there any known issue in NiFi (0.6.1) version, do you > suggest upgrade the version may solve this issue? > > > > Thanks and Regards, > > *Rajesh Biswas* | +91 9886433461 | www.bridgera.com > > > > *From:* Bryan Bende [mailto:bbe...@gmail.com] > *Sent:* Friday, June 15, 2018 12:50 AM > *To:* us...@nifi.apache.org > *Cc:* dev@nifi.apache.org > *Subject:* Re: TCP Connection Limit Error > > > > Hello, > > > > There is a counter that is incremented when a connection is opened, and > decremented when it is closed. When this counter exceeds the number > configured in the processor, then it rejects the connection with the > message you are seeing. Since you have the max connections set to 1000, > there must be over 1000 connections being opened. > > > > You could probably use something like nestat or some other networking > monitoring utility to see what connections are open. Also may want to look > into whatever the source of the connections is to see how it is opening and > closing connections. > > > > Thanks, > > > > Bryan > > > > On Thu, Jun 14, 2018 at 3:07 PM Rajesh Biswas <rajesh.bis...@bridgera.com> > wrote: > > Hello Team, > > We are using TCP Processor to receive input from external systems. > > We are frequently receiving max connection timeout exception > > We feel the number of configured connections are more than our > requirements. > > Is there any way to monitor the open connections. > > How we can know that open connections are not closed after data is > received from external systems? > > The NiFi version is 0.6.1 > > Please find the log file for the reference > > > > Exception: > > Rejecting connection from /162.244.250.137:25558 because max connections > has been met > > > > Attached log file and processor properties > > > > > > Thanks and Regards, > > *Rajesh Biswas* | +91 9886433461 | www.bridgera.com > > > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > Virus-free. www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> > > > > -- > > Sent from Gmail Mobile > -- Sent from Gmail Mobile
