The guardian of trust. The core backend of the qitmeer network.
The Qitmeer Official Public Testnet is OPEN Now. The Code name is the Medina Network. Please Join the Medina Network !
| Latest Testnet | Compatible Qitmeer Vesion | Start Date | Type |
|---|---|---|---|
| Umayyad Network 1.0 | v0.10.3 | 2021/07/25 | Official Public Testnet |
| Medina Network 2.0 | v0.9.x | 2020/06/24 | Official Public Testnet |
Please know more details from the Qitmeer Testnet
Standalone installation archive for Linux, macOS and Windows are provided in the Releases section. Please download an archive for your operating system and unpack the content to a place accessible from command line.
| Builds | Release | Date |
|---|---|---|
| Last |  |
 |
| Stable |  |
 |
Golang at least 1.12 (required >= 1.12)
Check your golang version.
~ go version
go version go1.16 darwin/amd64~ mkdir -p /tmp/work
~ cd /tmp/work
~ git clone https://github.com/Qitmeer/qitmeer.git
~ cd qitmeer
~ make
~ make
Done building.
qitmeer version 0.9.2+dev-1f5defd (Go version go1.16))
Run "./build/bin/qitmeer" to launch.Memory Requirements
- Minimum: 1GB
- Recommended: 2GB
Make sure to have at least 1GB free memory to run qitmeer. Insufficient memory may lead to the process being killed unexpectedly when its running. See FAQ #3 for details.
./build/bin/qitmeer --testnet
Please make sure use --testnet to connect to the correct network.
currently, only testnet network is officially supported.
Several configuration options available to tweak how it runs. Please see details by
using the help command
./build/bin/qitmeer --help
You can also run qitmeer by using docker
docker run qitmeer/qitmeerd
The command-line wallet of the Qitmeer network
The GPU miner for the Qitmeer netowrk.
The command line utility of Qitmeer
Block and Transaction Broadcasting with ZeroMQ for details on how this works.
Qitmeer Token for details on how this works.
You can use Ctrl+C to exit in the foreground, or kill or kill -2 if in the backgroud.
Please don't use kill -9 to kill the qitmeer process , this terminates the process abruptly
and may leave database files improperly closed. may result corrupt data files.
In the worst case, you might need to do a refresh block synchronization.
qitmeer --cleanup --testnet
Please be careful! the command results your data to be removed!
If you got trouble to download the golang.org depends automatically
go: golang.org/x/crypto@v0.0.0-20181001203147-e3636079e1a4: unrecognized import path "golang.org/x/crypto" (https fetch: Get https://golang.org/x/crypto?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)
go: golang.org/x/net@v0.0.0-20181005035420-146acd28ed58: unrecognized import path "golang.org/x/net" (https fetch: Get https://golang.org/x/net?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)
go: golang.org/x/net@v0.0.0-20180906233101-161cd47e91fd: unrecognized import path "golang.org/x/net" (https fetch: Get https://golang.org/x/net?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)
you might need to replace the download url (ex: using a mirror site like github.com) on your go.mod
replace (
golang.org/x/crypto v0.0.0-20181001203147-e3636079e1a4 => github.com/golang/crypto v0.0.0-20181001203147-e3636079e1a4
golang.org/x/net v0.0.0-20180906233101-161cd47e91fd => github.com/golang/net v0.0.0-20180906233101-161cd47e91fd
golang.org/x/net v0.0.0-20181005035420-146acd28ed58 => github.com/golang/net v0.0.0-20181005035420-146acd28ed58
)
qitmeer is killed unexpectedly probably due to the Out of Memory, If you're using Ubuntu linux,
you can verify it by following command.
dmesg -T| grep -E -i -B100 'killed process'If you find similar output as follows, then that maybe the case
[Tue Mar 9 11:34:26 2021] Out of memory: Killed process 140587 (qitmeer) total-vm:1403144kB,
anon-rss:675828kB, file-rss:0kB, shmem-rss:0kB, UID:1001 pgtables:1532kB oom_score_adj:0The minimum memory requirement is 1GB, and we strongly recommend upgrading the memory to 2GB.
If the memory resource restrictions is do your case, You might try to upgrade your Golang to the latest version
and re-compile Qitmeer and try yourself. We have received feedbacks from community that the
newly golang compiler have better memory optimizations, might work better wth low memory
requirement, and especially for Ubuntu 20.04.
If you're using Ubuntu 18.04/20.04, then you can use the longsleep/golang-backports PPA
and update to latest golang. then re-compile your qitmeer and try if works for you.
sudo add-apt-repository ppa:longsleep/golang-backports
sudo apt update
sudo apt install golang-goPlease note, it does not guarantee that compiling with the latest golang might work.
Adding more computer memory is always the recommended way.
If your golang version is 1.16 or above, you might see similar error as follows when compiling.
go: github.com/Qitmeer/crypto@v0.0.0-20200516043559-dd457edff06c: missing go.sum entry; to add it:
go mod download github.com/Qitmeer/crypto
make: *** [Makefile:41: qitmeer-build] Error 1It's due to go1.16 changes default mod rules by disabling auto fixing missing entry in go.sum file.
see details here.
It's an known issue and fixed by the latest code, Please update Qitmeer to the latest version
and do the compiling again.
If you somehow need to stick to the current version, please make sure to execute following command before you compile qitmeer:
go mod tidy