On 2025-01-06 00:37, Jonathan Lee wrote:
Can you please help I have noticed for a long time under information
page that Store Disk Files Open is a lot of the times showing 0
Is this of concern?
If your Squid is not configured to use a cache_dir, then seeing zero
Store Disk files open is OK.
If your Squid is configured to use a rock cache_dir, then seeing zero or
very few Store Disk files open is usually OK.
If your Squid is more-or-less idle at mgr:info query time, then seeing
zero Store Disk files open is usually OK.
I thought I should email and ask as I have not found
any information that gives clarity on what this section of the status
page relates to.
This low-level statistics shows a very approximate counter of files open
for the purpose related to managing responses in a cache_dir storage.
The exact definitions of "file", "open", and "storage" vary from one
cache_dir type to another.
N.B. All(?) other lines in "File descriptor usage for squid" section
include network socket descriptors (and not just disk file descriptors).
If you can add this (or better) info to Squid wiki, please do.
I have seen it at 1 at times however it shows failed to
parse headers or something also.
Those events are probably unrelated, but I cannot be sure without seeing
the exact failure messages.
HTH,
Alex.
File descriptor usage for squid:
Maximum number of file descriptors: 97578
Largest file desc currently in use: 1452
Number of file desc currently in use: 1215
Files queued for open: 0
Available number of file descriptors: 96363
Reserved number of file descriptors: 100
Store Disk files open: 0
Internal Data Structures:
17774 StoreEntries
4091 StoreEntries with MemObjects
4032 Hot Object Cache Items
17715 on-disk objects
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