When I start ES 2.0 as is extracted from ZIP file on my Windows 7 x64 computer, I get multiple (12x) WARNINGS like following:
[2015-11-12 13:34:08,248][WARN ][transport.netty ] [Lorelei II] exception caught on transport layer [[id: 0xf9e16854, /127.0.0.1:3940 => /127.0.0.1:9300]], closing connection
java.io.StreamCorruptedException: invalid internal transport message format, got (48,54,54,50)
After these warnings, starting continues and ES eventually stays running.
I tried this with different Java versions }for example jdk1.7.0_71, jre1.8.0_65 or jdk1.8.0_65] but with exactly the same result.
If I try the same test with ES 1.7.3 ZIP file, no WARNING appears.
I know it is something specific for my PC, for when I tried it on one of our test servers, it worked fine. But I am little bit nervous.
I would like to understand this WARNING before I start with cluster upgrade.
Any idea what is this WARNING about?