annotate mod_storage_xmlarchive/datamanager_append_raw.lib.lua @ 4877:adc6241e5d16

mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents f4ab0966ba89
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2289
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 local io_open = io.open;
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2 local dm = require "core.storagemanager".olddm;
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4 -- Append a blob of data to a file
2343
f4ab0966ba89 mod_storage_xmlarchive: Fix name in datamanager monkeypatch (fixes #774)
Kim Alvefur <zash@zash.se>
parents: 2289
diff changeset
5 function dm.append_raw(username, host, datastore, ext, data)
2289
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6 if type(data) ~= "string" then return; end
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 local filename = dm.getpath(username, host, datastore, ext, true);
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 local ok;
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10 local f, msg = io_open(filename, "r+");
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 if not f then
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 -- File did probably not exist, let's create it
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 f, msg = io_open(filename, "w");
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 if not f then
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15 return nil, msg, "open";
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 end
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 end
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 local pos = f:seek("end");
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21 ok, msg = f:write(data);
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
22 if not ok then
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
23 f:close();
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
24 return ok, msg, "write";
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
25 end
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
26
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
27 ok, msg = f:close();
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
28 if not ok then
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29 return ok, msg;
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 end
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 return true, pos;
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33 end
aa984980a4dc mod_storage_xmlarchive: Include the missing append_raw() for 0.9 compatibility
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34