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Search-server fails to start with an error of the following type <Appian_home>\logs\search-server\search-server.log:
<Appian_home>\logs\search-server\search-server.log:
[WARN ][org.elasticsearch.transport.netty] [Node localhost:9500] exception caught on transport layer [[id: 0xe02114e6, /127.0.0.1:46664 => /127.0.0.1:9500]], closing connectionjava.io.StreamCorruptedException: invalid internal transport message format, got (16,3,1,0)at org.elasticsearch.transport.netty.SizeHeaderFrameDecoder.decode(SizeHeaderFrameDecoder.java:63)
This happens due to the lack of disk space on the server which hosts the search-server.
Add disk space and restart the search-server.
Refer to the hardware requirements documentation here to get a general idea on the hardware allotment for an Appian environment.
This article applies to all versions of Appian.
Last Reviewed: August 2018