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3 changed files with 80 additions and 120 deletions
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74
check_df_files
View File

@ -12,52 +12,34 @@ db = psycopg2.connect('')
csr = db.cursor(cursor_factory=psycopg2.extras.DictCursor)
csr.execute(
"""
with recursive
t as (
select '2 minutes'::interval as d
union
select d * 2 from t where d < '1 year'::interval
),
fs as (
select distinct hostname, filesystem
from df
where ts >= now() - '2 minutes'::interval
group by hostname, filesystem
),
forecast as (
select
fs.hostname, fs.filesystem,
new.ts + (new.ts - old.ts) as when,
new.ts + (new.ts - old.ts) - now() as d,
new.f_used + (new.f_used - old.f_used) as used,
(new.f_used + (new.f_used - old.f_used)) / old.f_usable * 100 as percent,
(new.f_used + (new.f_used - old.f_used)) > old.f_usable as capacity_exceeded
from fs, t,
lateral (
select *
from df
where
df.hostname = fs.hostname
and df.filesystem = fs.filesystem
and df.ts >= now() - t.d
order by ts
limit 1
) old,
lateral (
select *
from df
where
df.hostname = fs.hostname
and df.filesystem = fs.filesystem
order by ts desc
limit 1
) new
)
select * from forecast
where capacity_exceeded
order by "when"
"""
"""
with recursive t as (
select '2 minutes'::interval as d
union
select d * 2 from t where d < '1 year'::interval
),
a as (
select distinct hostname, filesystem, min(ts), max(ts)
from df, t
where ts >= now() - t.d
group by hostname, filesystem, t.d
),
forecast as (
select
a.hostname, a.filesystem,
c.ts - b.ts as d,
c.ts + (c.ts - b.ts) as when,
c.f_used + (c.f_used - b.f_used) as used,
(c.f_used + (c.f_used - b.f_used)) / b.f_usable * 100 as percent,
(c.f_used + (c.f_used - b.f_used)) > b.f_usable as capacity_exceeded
from a
join df b on (a.hostname = b.hostname and a.filesystem = b.filesystem and a.min = b.ts)
join df c on (a.hostname = c.hostname and a.filesystem = c.filesystem and a.max = c.ts)
)
select * from forecast
where capacity_exceeded
order by 1, 2, 3
"""
)
status = 0

74
check_df_space
View File

@ -12,52 +12,34 @@ db = psycopg2.connect('')
csr = db.cursor(cursor_factory=psycopg2.extras.DictCursor)
csr.execute(
"""
with recursive
t as (
select '2 minutes'::interval as d
union
select d * 2 from t where d < '1 year'::interval
),
fs as (
select distinct hostname, filesystem
from df
where ts >= now() - '2 minutes'::interval
group by hostname, filesystem
),
forecast as (
select
fs.hostname, fs.filesystem,
new.ts + (new.ts - old.ts) as when,
new.ts + (new.ts - old.ts) - now() as d,
new.s_used + (new.s_used - old.s_used) as used,
(new.s_used + (new.s_used - old.s_used)) / old.s_usable * 100 as percent,
(new.s_used + (new.s_used - old.s_used)) > old.s_usable as capacity_exceeded
from fs, t,
lateral (
select *
from df
where
df.hostname = fs.hostname
and df.filesystem = fs.filesystem
and df.ts >= now() - t.d
order by ts
limit 1
) old,
lateral (
select *
from df
where
df.hostname = fs.hostname
and df.filesystem = fs.filesystem
order by ts desc
limit 1
) new
)
select * from forecast
where capacity_exceeded
order by "when"
"""
"""
with recursive t as (
select '2 minutes'::interval as d
union
select d * 2 from t where d < '1 year'::interval
),
a as (
select distinct hostname, filesystem, min(ts), max(ts)
from df, t
where ts >= now() - t.d
group by hostname, filesystem, t.d
),
forecast as (
select
a.hostname, a.filesystem,
c.ts - b.ts as d,
c.ts + (c.ts - b.ts) as when,
c.s_used + (c.s_used - b.s_used) as used,
(c.s_used + (c.s_used - b.s_used)) / b.s_usable * 100 as percent,
(c.s_used + (c.s_used - b.s_used)) > b.s_usable as capacity_exceeded
from a
join df b on (a.hostname = b.hostname and a.filesystem = b.filesystem and a.min = b.ts)
join df c on (a.hostname = c.hostname and a.filesystem = c.filesystem and a.max = c.ts)
)
select * from forecast
where capacity_exceeded
order by 1, 2, 3
"""
)
status = 0

52
df2db
View File

@ -12,38 +12,34 @@ csr = db.cursor()
with open("/proc/mounts") as mounts:
for mount in mounts:
(dev, mountpoint, fstype, rest) = mount.split(' ', 3)
try:
s = os.statvfs(mountpoint)
if s.f_blocks == 0:
continue # not a real file system
s = os.statvfs(mountpoint)
if s.f_blocks == 0:
continue # not a real file system
s_total = s.f_blocks * s.f_bsize
s_usable = (s.f_blocks - s.f_bfree + s.f_bavail) * s.f_bsize
s_used = (s.f_blocks - s.f_bfree) * s.f_bsize
s_total = s.f_blocks * s.f_bsize
s_usable = (s.f_blocks - s.f_bfree + s.f_bavail) * s.f_bsize
s_used = (s.f_blocks - s.f_bfree) * s.f_bsize
f_total = s.f_files
f_usable = s.f_files - s.f_ffree + s.f_favail
f_used = s.f_files - s.f_ffree
f_total = s.f_files
f_usable = s.f_files - s.f_ffree + s.f_favail
f_used = s.f_files - s.f_ffree
csr.execute(
"""
insert into df(
hostname, filesystem,
s_total, s_usable, s_used,
f_total, f_usable, f_used
)
values (
%s, %s,
%s, %s, %s,
%s, %s, %s
)
""",
(hostname, mountpoint,
csr.execute(
"""
insert into df(
hostname, filesystem,
s_total, s_usable, s_used,
f_total, f_usable, f_used))
except PermissionError:
# silently ignore some errors
pass
f_total, f_usable, f_used
)
values (
%s, %s,
%s, %s, %s,
%s, %s, %s
)
""",
(hostname, mountpoint,
s_total, s_usable, s_used,
f_total, f_usable, f_used))
db.commit()