Commit Graph

6 Commits

Author SHA1 Message Date
Márton Elek
0fdacfed8f satellite/durability: observer must reset between executions
Change-Id: I8f5b951beba513b219c4bb5680658f5e8b54538d
2023-11-20 16:56:43 +00:00
Márton Elek
0ef3247d44 satellite/durability: make benchmark even quicker
To make sure that Benchmark tests are good, we run them with -short flag, eg:

```
go test -short -run=BenchmarkDurabilityProcess
```

Durability benchmark already supports this, but we can make it slightly more faster with
using less sgements and pieces during the `-short` run.

Change-Id: I9547ca1e3cd0178eb395a7a388f2e7936a9862d7
2023-11-08 19:00:30 +00:00
Márton Elek
23c592adeb satellite/durability: use process level classID cache (instead fork level)
Classifier of durability is sg. like "net:1.3.4.1" or "country:HU".

To make the calculation faster we use arrays instead of maps, which means that we assign a uinique index to all of these strings (classes).

As Egon suggested earlier, we can do this mapping only once (per process), not for each fork.

Not a big deal performance-wise, as we have limited number of forks, which are initialized once per 5-10 hours, but the code is more readable and clean.

Change-Id: Id081846b5d97dae8009aeeecbcc63cb713bed294
2023-11-08 15:22:48 +00:00
Márton Elek
015cb94909
satellite/durability: add exemplar and report time to the reported results
Exemplars are representative elements for the stat. For example if a stat min is `30`, we can save one example with that value.

More details about the concept is here: https://grafana.com/docs/grafana/latest/fundamentals/exemplars/

In our context, which save the segment + position in case of min is updated, to make it easier to look after the segment in danger.

Change-Id: I19be482f1ddc7f1711e722c7b17480366d2c8312
2023-11-06 13:22:28 +01:00
Márton Elek
5c49ba1d85 satellite/durability: ignore information from new nodes
To get better performance, we pre-load all nodealias/node information at the beginning of the segment loop.

It's possible that we receive a new node alias from the segment table what we are not fully aware of (yet).

The easiest solution is just ignoring. New risks/threats can be detected by a new execution cycle.

Change-Id: Ib54f7edc46eedbab6d13b4d651aaac1425994940
2023-10-19 16:38:39 +00:00
Márton Elek
db3578d9ba satellite: durability rangeloop observer for monitoring risks
Change-Id: I92805fcc6e7c1bbe0f42bbf849d22f9908fedadb
2023-10-12 16:32:30 +00:00