fea950155f
proxmox-rrd: improve dev docs
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Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
2021-10-19 11:17:09 +02:00
ef2944bc24
proxmox-rrd: cleanup - impl FromStr for JournalEntry
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Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
2021-10-19 11:17:09 +02:00
98eb435d90
proxmox-rrd: use syncfs after writing rrd files
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Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
2021-10-19 11:17:09 +02:00
7f381a6246
proxmox-rrd: use fine grained locking in commit_journal_impl
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Aquire the rrd_map lock for each file (else we block access for a long time)
2021-10-18 14:55:47 +02:00
c17fbbbc07
proxmox-rrd: log all errors from apply_and_commit_journal_thread (but only once)
2021-10-18 11:57:19 +02:00
2b05008a11
proxmox-rrd: cleanup - use struct instead of tuple
2021-10-16 12:45:03 +02:00
45700e2ecf
proxmox-rrd: move RRDMap into extra file
2021-10-16 12:45:03 +02:00
f84304235b
proxmox-rrd: move JournalState into extra file
2021-10-16 12:45:03 +02:00
0ca41155b2
proxmox-rrd: implement non blocking journal
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Do not block while applying the journal.
2021-10-16 12:45:03 +02:00
a291ab59ba
proxmox-rrd: rename RRDCacheState to JournalState
2021-10-15 09:35:44 +02:00
fce7cd0d36
proxmox-rrd: avoild blocking readers while applying the journal
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By using and extra RwLock<RRDMap> on the rrd data.
2021-10-15 09:22:07 +02:00
658357c5a8
proxmox-rrd: log journal apply/flush times, split apply and flush
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We need to apply the journal only once.
2021-10-15 07:16:41 +02:00
a9017805b7
proxmox-rrd: improve dev docs
2021-10-14 11:53:54 +02:00
2e3f94e12f
proxmox-rrd: make rrd load callback configurable
2021-10-14 11:41:26 +02:00
58f70bccbb
proxmox-rrd: pass time and value to update function
2021-10-14 08:12:56 +02:00
400f081487
proxmox-rrd: split out load_rrd (cleanup)
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Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
eb37d4ece2
proxmox-rrd: remove dependency to proxmox-rrd-api-types
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Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
1198f8d4e6
proxmox-rrd: implement new CBOR based format
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Storing much more data points now got get better graphs.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
1d44f175c6
proxmox-rrd: use a journal to reduce amount of bytes written
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Append pending changes in a simple text based format that allows for
lockless appends as long as we stay below 4 KiB data per write.
Apply the journal every 30 minutes and on daemon startup.
Note that we do not ensure that the journal is synced, this is a
perfomance optimization we can make as the kernel defaults to
writeback in-flight data every 30s (sysctl vm/dirty_expire_centisecs)
anyway, so we lose at max half a minute of data on a crash, here one
should have in mind that we normally expose 1 minute as finest
granularity anyway, so not really much lost.
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
2021-10-13 13:36:02 +02:00
6ef1b649d9
update to first proxmox crate split
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Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
2021-10-11 11:58:49 +02:00
b3a67f1f14
proxmox-rrd: use correct directory options in create_rrdb_dir
2021-10-07 08:50:50 +02:00
3def6bfc64
proxmox-rrd: use log crate instead of eprintln, avoid duplicate logs
2021-10-06 18:19:22 +02:00
0191759316
proxmox-rrd: improve developer docs
2021-10-06 12:19:54 +02:00
d1c3bc5350
split out RRD api types into proxmox-rrd-api-types crate
2021-10-06 09:49:51 +02:00
a97301350f
proxmox-rrd: use create_path instead of std::fs::create_dir_all
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To ensure correct file ownership.
2021-10-06 08:37:14 +02:00
09340f28f5
move RRD code into proxmox-rrd crate
2021-10-06 08:13:28 +02:00
Dietmar Maurer
Wolfgang Bumiller