[gpfsug-discuss] Meaning of API Stats Category

[Kristy Kallback-Rose]

Hi,

  Can anyone provide more detail about what is meant by the following two
categories of stats? The PDG has a limited description as far as I could
see. I'm not sure what is meant by Application PoV. Would the Grafana
bridge count as an "application"?

Category 1, GPFSFileSystemAPI:
This metrics gives the following information for each file system
(application view). For example:
myMachine|GPFSFilesystemAPI|myCluster|myFilesystem|gpfs_fis_bytes_read .
gpfs_fis_bytes_read Number of bytes read.
gpfs_fis_bytes_written Number of bytes written.
gpfs_fis_close_calls Number of close calls.
gpfs_fis_disks Number of disks in the file system.
gpfs_fis_inodes_written Number of inode updates to disk.
gpfs_fis_open_calls Number of open calls.
gpfs_fis_read_calls Number of read calls.
gpfs_fis_readdir_calls Number of readdir calls.
gpfs_fis_write_calls Number of write calls.

Category 2, GPFSNodeAPI:
This metrics gives the following information for a particular node from its
application point of view. For example:
myMachine|GPFSNodeAPI|gpfs_is_bytes_read .
gpfs_is_bytes_read Number of bytes read.
gpfs_is_bytes_written Number of bytes written.
gpfs_is_close_calls Number of close calls.
gpfs_is_inodes_written Number of inode updates to disk.
gpfs_is_open_calls Number of open calls.
gpfs_is_readDir_calls Number of readdir calls.
gpfs_is_read_calls Number of read calls.
gpfs_is_write_calls Number of write calls.

Thanks,
Kristy
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