The problem with pprof

[UncleVic]

I try to use pprof to heap control.

I built the lib from src as was written in the doc

git clone --branch release/4 https://github.com/restream/reindexer.git $GOPATH/src/reindexer
bash $GOPATH/src/reindexer/dependencies.sh
cd $GOPATH/src/reindexer
go generate ./bindings/builtin
go generate ./bindings/builtinserver

# Go to your app's directory
cd /your/app/path
go get -a github.com/restream/reindexer/v5
go mod edit -replace github.com/restream/reindexer/v5=$GOPATH/src/reindexer

But after running I've got a message

go tool pprof -alloc_space http://localhost:4444/debug/cgo/pprof/heap
Fetching profile over HTTP from http://localhost:4444/debug/cgo/pprof/heap
http://localhost:4444/debug/cgo/pprof/heap: parsing profile: empty input file
failed to fetch any source profiles

If I try getting prebuild package and build my app, I get the error

19.06 # github.com/restream/reindexer/v5/pprof
19.06 /go/pkg/mod/github.com/restream/reindexer/v5@v5.0.1/pprof/memstat_tcmalloc.go:5:11: fatal error: gperftools/malloc_extension_c.h: No such file or directory
19.06     5 | // #include <gperftools/malloc_extension_c.h>
19.06       |           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
19.06 compilation terminated.
28.22 # gitlab.com/mskr/edi/edi/internal/pkg/csp
28.22 signer.c: In function 'CleanupResources':
28.22 signer.c:78:21: warning: assignment to 'HCRYPTPROV' {aka 'long long unsigned int'} from 'void *' makes integer from pointer without a cast [-Wint-conversion]
28.22    78 |         *hCryptProv = NULL;
28.22       |                     ^

What did I wrong?

[MadSchemas]

Hi!

First of all, you are trying to build library v4 (by using --branch release/4) with v5 go binding. This appears to be a mistake in readme. The correct command is git clone without specific branch:

git clone https://github.com/restream/reindexer.git $GOPATH/src/reindexer

However, that is not the reason, why heap profile does not work.

Looks like you do not have gperftools dev package in your system (or reindexer can not find it).

1. Could you please provide full build log from reindexer's go generate steps? Build directory cleanup is essential here to get some relevant logs from Cmake.
2. As for your attempt to build with prebuilt package (which is actually the recommended way): do you have malloc_extension_c.h header somewhere in your system / in PATH? Usually it is a part of gperftools dev package, that must be installed explicitly