Building go application with jemalloc errors out

Issues Badger
1

What version of Go are you using (go version)?

$ go version 1.17

What operating system are you using?

Rhel 7

What version of Badger are you using?

v3.2103.2

Does this issue reproduce with the latest master?

yes

Steps to Reproduce the issue

install jemalloc
go run -tags=jemalloc main.go

What Badger options were set?

Default options

What did you do?

go run -tags=jemalloc main.go

What did you expect to see?

What did you see instead?

# github.com/dgraph-io/ristretto/z
vendor/github.com/dgraph-io/ristretto/z/calloc_jemalloc.go:73:9: could not determine kind of name for C.je_calloc
vendor/github.com/dgraph-io/ristretto/z/calloc_jemalloc.go:103:3: could not determine kind of name for C.je_free
vendor/github.com/dgraph-io/ristretto/z/calloc_jemalloc.go:143:2: could not determine kind of name for C.je_mallctl
vendor/github.com/dgraph-io/ristretto/z/calloc_jemalloc.go:170:2: could not determine kind of name for C.je_malloc_stats_print
2

@Dgraph_Admin any update on this?

@Vishal_Jangid did you get the compilation issue fixed?

I am also facing the same issue but on MacOS.

3

I was unable to resolve the issue on Rhel 7. I haven’t tried it on MacOS.

4

Hi Abdul, did you use the makefile in badger to install jemalloc? Try running make badger and let us know what happens. Badger compiles with jemalloc on my MacOS machine.

@Vishal_Jangid I can’t speak personally for RHEL but I’d suggest the same advice to compile with make badger and report back what happens.

5

Hi @joshua,

I cloned the dgraph-io/badger repository and executed make badger command which resulted in same error:

Compiling Badger binary...
# github.com/dgraph-io/ristretto/z
/go/pkg/mod/github.com/dgraph-io/ristretto@v0.1.1/z/calloc_jemalloc.go:73:9: could not determine kind of name for C.je_calloc
/go/pkg/mod/github.com/dgraph-io/ristretto@v0.1.1/z/calloc_jemalloc.go:103:3: could not determine kind of name for C.je_free
/go/pkg/mod/github.com/dgraph-io/ristretto@v0.1.1/z/calloc_jemalloc.go:143:2: could not determine kind of name for C.je_mallctl
/go/pkg/mod/github.com/dgraph-io/ristretto@v0.1.1/z/calloc_jemalloc.go:170:2: could not determine kind of name for C.je_malloc_stats_print
make[1]: *** [badger] Error 2
make: *** [badger] Error 2

It would be awesome, if you can guide us with the exact steps on how to build DGraph with MacOS and explicitly mention any external dependencies required separately.

Thanks!

6

Hi @Abdul_Aziz ,

Sorry for the delay. That is interesting - usually this error comes the Cgo preamble being misconfigured (e.g. see here) but it doesn’t look like that is the problem here.

Could you try running go install github.com/dgraph-io/badger/v4/badger@latest? This should also install the Badger CLI. Alternatively, if you want to build the CLI locally, you can try running go build . from the Badger subdirectory.

To be clear, if your goal is to build Dgraph from source, you don’t have to first build Badger, since this is just a CLI for debugging (Badger is an embedded key-value store). Instructions for building Dgraph are in the Dgraph readme.