Hi Fabio, -1 is shorthand for latest when passed as --time to GetOffsetShell (-2 is earliest), so the output is telling you that the latest offset of partition 0 of the topic is 47252.
However, the earliest offset in the topic may not be zero - as topic retention times are hit and messages removed, offsets aren't changed. So likely you'll find the earliest offset is 23626 or similar if you run GetOffsetShell with --time -2. Cheers, Liam Clarke-Hutchinson On Mon, 8 Jun. 2020, 8:42 pm Fabio Pardi, <f.pa...@portavita.eu> wrote: > Hi there, > > I have one topic with one partition and i want to know how many messages > are there in the topic. > > I noticed that if i run: > > kafka-console-consumer --topic mytopic --bootstrap-server [..]:9092 > --from-beginning > > [..] > Processed a total of 23626 messages > > > If I instead run: > > kafka.tools.GetOffsetShell --broker-list [..]:9092 --topic mytopic --time > -1 > > mytopic:0:47252 > > > So the 2 commands return different numbers and the first returns exactly > half the amount the second does. > > Why the 2 commands do not return the same amount and which one is right? > > > kafka-console-consumer --version > 5.4.1-ccs (Commit:fd1e543386b47352) > > kafka-run-class -version > openjdk version "1.8.0_212" > OpenJDK Runtime Environment (Zulu 8.38.0.13-CA-linux64) (build > 1.8.0_212-b04) > OpenJDK 64-Bit Server VM (Zulu 8.38.0.13-CA-linux64) (build 25.212-b04, > mixed mode) > > regards, > > fabio pardi >
