If the input plugin has enabled membuflimit and storage. Just to confirm, their in the same namespace you dont have it, elasticsearch in 1 namespace and fluentbit in another Services can not communicate across namespace unless using the full qualified DNS name. Fluentbit failed to flush chunk claralyn balazs immunity. . ita. . Forums. Under this scenario what I believe is happening is that the buffer is filled with junk but Fluent. SERVICE Flush 5 Daemon off INPUT Name cpu Tag fluentbit OUTPUT Name forward Match Host fd007fff029c439bfffe00bb Port 24000.