some file appears to be 0 bytes in length

[coboe]

once a file is 0 bytes, pcstat is stop. and do not deal with other files.

$ ./pcstat /lib/x86_64-linux-gnu/libnsl-2.27.so
|--------------------------------------+----------------+------------+-----------+---------|
| Name | Size | Pages | Cached | Percent |
|--------------------------------------+----------------+------------+-----------+---------|
| /lib/x86_64-linux-gnu/libnsl-2.27.so | 97176 | 24 | 24 | 100.000 |
|--------------------------------------+----------------+------------+-----------+---------|

$ ./pcstat /lib/x86_64-linux-gnu/libnsl-2.27.so /lib/x86_64-linux-gnu/liblzma.so.5.2.2
|----------------------------------------+----------------+------------+-----------+---------|
| Name | Size | Pages | Cached | Percent |
|----------------------------------------+----------------+------------+-----------+---------|
| /lib/x86_64-linux-gnu/libnsl-2.27.so | 97176 | 24 | 24 | 100.000 |
| /lib/x86_64-linux-gnu/liblzma.so.5.2.2 | 153984 | 38 | 38 | 100.000 |
|----------------------------------------+----------------+------------+-----------+---------|

$ ./pcstat /home/gpu2/data1/rook/osd2/current/omap/LOCK
2019/11/21 08:07:04 /home/gpu2/data1/rook/osd2/current/omap/LOCK appears to be 0 bytes in length

$ ./pcstat /lib/x86_64-linux-gnu/libnsl-2.27.so /lib/x86_64-linux-gnu/liblzma.so.5.2.2 /home/gpu2/data1/rook/osd2/current/omap/LOCK
2019/11/21 08:08:30 /home/gpu2/data1/rook/osd2/current/omap/LOCK appears to be 0 bytes in length

[wangdepeng]

encountered the same issue.

[tobert]

Interesting. I can't seem to reproduce it locally but will keep trying.