j.l.IllegalArgumentException: invalid version format: 0 in galing

Gatling (Open-Source)
1

I am facing j.l.IllegalArgumentException: invalid version format: 0 this is some of request not for all.

I am using gatling-charts-highcharts-bundle-3.3.1

I need help on this.

EIPortal.scala (34.6 KB)

gatling.conf (8.64 KB)

2

Hi,

Impossible to say if this is a bug in Netty or in your application that sometimes sends incorrect TCP fragments.
I’m sorry but your sample is way too complex to investigate.
Please try to provide a more simple one, eg trying to narrow your problem down to a few request types (not a hundred like in your current sample).

Cheers,

3

Hi Stephane,

Sorry for the late reply, I have attached simple login example.
In this simulation, I am getting this error j.l.IllegalArgumentException: invalid version format: 0

Thank you

login.scala (3.53 KB)

4

Using WireShark, I see lots of duplicated and out-of-order packets under load.
It really doesn’t look like an issue on the Gatling side but on your network infrastructure.

5

Hi, im having same exception in request to locahost from within simulation (same request in vscode works fine) (also works fine if request is made from simulation to deployed app) :frowning:
Searching online i find several entries about this exception related with netty but not the solution, can someone help?

POST /messagehub/negotiate HTTP/1.1
Referer: https://xxx.com/
Origin: https://xxx.com
Connection: keep-alive
Content-Length: 0
Accept: /
Content-Type: text/plain;charset=UTF-8
DNT: 1
Accept-Language: en-GB,en;q=0.5
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:83.0) Gecko/20100101 Firefox/83.0
Host: localhost:44386
X-Requested-With: XMLHttpRequest
accept-encoding: gzip, deflate, content=null}
16:09:06.926 [DEBUG] i.g.h.c.i.HttpAppHandler - Read msg=‘DefaultFullHttpResponse(decodeResult: failure(java.lang.IllegalArgumentException: invalid version format: 0), version: HTTP/1.0, content: UnpooledByteBufAllocator$InstrumentedUnpooledUnsafeHeapByteBuf(ridx: 0, widx: 0, cap: 0))
HTTP/1.0 999 Unknown’
16:09:06.927 [INFO ] i.g.h.e.GatlingHttpListener - Request ‘api_negotiate_post’ failed for user 1
java.lang.IllegalArgumentException: invalid version format: 0
at io.netty.handler.codec.http.HttpVersion.(HttpVersion.java:123)
at io.netty.handler.codec.http.HttpVersion.valueOf(HttpVersion.java:78)
at io.netty.handler.codec.http.HttpResponseDecoder.createMessage(HttpResponseDecoder.java:118)

at io.netty.handler.codec.http.HttpObjectDecoder.decode(HttpObjectDecoder.java:210)

Thank you

6

Have you enabled HTTP/2 along with using WebSockets?