What does this PR do:
* Optional Backfilling and Caplin Archive Node
* Create antiquary for historical states
* Fixed gaps of chain gap related to the Head of the chain and anchor of
the chain.
* Added basic reader object to Read the Historical state
This is a non functional change which consolidates the various packages
under metrics into the top level package now that the dead code is
removed.
It is a precursor to the removal of Victoria metrics after which all
erigon metrics code will be contained in this single package.
This is an update of:
https://github.com/ledgerwatch/erigon/pull/7846
which uses a local fork of victoria metrics to include the changes that
https://github.com/anshalshukla added to the original for we where
using.
It also includes code to address the duplicate metrics issue identified
here:
https://github.com/ledgerwatch/erigon/issues/8053
It has one more associated fix which is to correctly add a metadata
label to counters, these where previously labelled as gauges.
e.g.
```
# TYPE p2p_peers counter
p2p_peers 0
```
rather than
```
# TYPE p2p_peers gauge
p2p_peers 0
```
---------
Co-authored-by: Anshal Shukla <53994948+anshalshukla@users.noreply.github.com>
Co-authored-by: Anshal Shukla <shukla.anshal85@gmail.com>
we need to extract this interface from the struct.
i need to also break down the interface more, to better show what parts
the caching is used, move some functions from the cache state to the
underlying.
don't merge
we update observability in the p2p layer for handlers, and also properly
encode error codes, close streams.
---------
Co-authored-by: Alex Sharov <AskAlexSharov@gmail.com>
Co-authored-by: Giulio <giulio.rebuffo@gmail.com>
