+ d-comp SEDA and Apache NiFi added

Author: artemiev_a

distributed-comp/info.md

@@ -7,9 +7,15 @@ Jerzy Brzezinski, Michal Szychowiak
 SELF-STABILIZATION IN DISTRIBUTED SYSTEMS – A SHORT SURVEY
 https://pdfs.semanticscholar.org/0c2c/91ef01eedabe6d1bebeb8173dc4518492690.pdf
 
+2.Concurrency models
+
+Matt Welsh, David Culler, and Eric Brewer
+SEDA: An Architecture for Well-Conditioned, Scalable Internet Services
+https://www.mdw.la/papers/seda-sosp01.pdf
+
 Authors
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 Shay Kutten, Technion – Israel Institute of Technology
 https://compsciclub.ru/teachers/5717/
-https://compsciclub.ru/courses/csseminar/2019-autumn/about/
+https://compsciclub.ru/courses/csseminar/2019-autumn/about/

distributed-comp/streaming.md

@@ -23,5 +23,12 @@ Solutions
 
 - https://flume.apache.org/
 
+6.Apache NiFi
+
+- to automate the flow of data between systems
+- Apache Zookeeper elects a single node as the Cluster Coordinator, and failover is handled automatically
+- preferred communication protocol between NiFi instances is the NiFi Site-to-Site (S2S) Protocol
+- Both the socket based protocol and HTTP(S) protocol are supported in S2S as the underlying transport protocol 
+
 Authors
 -------