Grafana Some Panel No Data

[Kyofin]

What happened:
Some panel appear no Data.

In prometheus , i can find the detail metrics data ,like below.

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?

Environment:

• JuiceFS version (use juicefs --version) or Hadoop Java SDK version: 1.0.0-rc2
• Cloud provider or hardware configuration running JuiceFS:
• OS (e.g cat /etc/os-release):
• Kernel (e.g. uname -a):
• Object storage (cloud provider and region, or self maintained): minio
• Metadata engine info (version, cloud provider managed or self maintained): mysql
• Network connectivity (JuiceFS to metadata engine, JuiceFS to object storage):
• Others: prometheus 2.36.2、pushgateway 1.4.3、grafana 9.0.5

[zhijian-pro]

Whether the time range is too small and no I/O operations are performed during this period？

[chnliyong]

The Operations panel's metrics is juicefs_fuse_xxx like, not juicefs_object_xxx.
You can query juicefs_fuse_written_size_bytes_sum or juicefs_fuse_read_size_bytes_sum in your prometheus

[Kyofin]

The Operations panel's metrics is juicefs_fuse_xxx like, not juicefs_object_xxx. You can query juicefs_fuse_written_size_bytes_sum or juicefs_fuse_read_size_bytes_sum in your prometheus

the Operations panel edit page is below:

i query juicefs_fuse_ops_durations_histogram_seconds_count in promethus, the data is 0 . is it normal ?

[Kyofin]

Whether the time range is too small and no I/O operations are performed during this period？

past five miniute , those no data panel still no data .

[chnliyong]

These panels display the fuse metrics, you don't mount it for use (Hadoop SDK mode) and some fuse metrics like fuse read and fuse write don't exist.

[Kyofin]

These panels display the fuse metrics, you don't mount it for use (Hadoop SDK mode) and some fuse metrics like fuse read and fuse write don't exist.

i just use juicefs hadoop sdk ， some panel appear no data is normal ？
if it is noraml , i will close this issue later.

[chnliyong]

These panels display the fuse metrics, you don't mount it for use (Hadoop SDK mode) and some fuse metrics like fuse read and fuse write don't exist.

i just use juicefs hadoop sdk ， some panel appear no data is normal ？ if it is noraml , i will close this issue later.

Yes, you can mount it and do some read or write in the mounted directory, then these panels should be OK.

[davies]

These panels display the fuse metrics, you don't mount it for use (Hadoop SDK mode) and some fuse metrics like fuse read and fuse write don't exist.

i just use juicefs hadoop sdk ， some panel appear no data is normal ？ if it is noraml , i will close this issue later.

The prometheus can't pull metrics from Hadoop SDK, you need to use the P8S push gateway or graphite to push metrics from Hadoop SDK.