* p2p/simulation: WIP minimal snapshot test
* p2p/simulation: Add snapshot create, load and verify to snapshot test
* build: add test tag for tests
* p2p/simulations, build: Revert travis change, build test sym always
* p2p/simulations: Add comments, timeout check on additional events
* p2p/simulation: Add benchmark template for minimal peer protocol init
* p2p/simulations: Remove unused code
* p2p/simulation: Correct timer reset
* p2p/simulations: Put snapshot check events in buffer and call blocking
* p2p/simulations: TestSnapshot fail if Load function returns early
* p2p/simulations: TestSnapshot wait for all connections before returning
* p2p/simulation: Revert to before wait for snap load (5e75594)
* p2p/simulations: add "conns after load" subtest to TestSnapshot
and nudge
* swarm/shed: add metrics to each shed db
* swarm/shed: push metrics prefix up
* swarm/shed: rename prefix to metricsPrefix
* swarm/shed: unexport Meter, remove Mutex for quit channel
* swarm/network: Hive - do not notify peer if discovery is disabled
* p2p/simulations: validate all connections on loading a snapshot
* p2p/simulations: track all connections in on snapshot loading
* p2p/simulations: add snapshotLoadTimeout variable
* p2p/simulations: ignore control events in snapshot load
* p2p/simulations: simplify event loop synchronization
* p2p/simulations: return already connected error from Load function
* p2p/simulations: log warning on snapshot loading disconnection
* swarm/network/stream/: added stream protocol version match tests
* Increase BZZ version due to streamer version change; version tests
* swarm/network: increased hive and test protocol version
- Replace "crypto/rand" to "math/rand" for files content generation
- Remove swarm/network_test.go.Shuffle and swarm/btm/btm_test.go.Shuffle - because go1.9 support dropped (see https://github.com/ethereum/go-ethereum/pull/17807 and comments to swarm/network_test.go.Shuffle)
On file access LDBStore's tryAccessIdx() function created a faulty
GC Index Data entry, because not indexing the ikey correctly.
That caused the chunk addresses/hashes to start with '00' and the last
two digits were dropped. => Incorrect chunk address.
Besides the fix, the commit also contains a schema change which will
run the CleanGCIndex() function to clean the GC index from erroneous
entries.
Note: CleanGCIndex() rebuilds the index from scratch which can take
a really-really long time with a huge DB (possibly an hour).
Access count was not incremented when chunk was retrieved
from cache. So the garbage collector might have deleted the most
frequently accessed chunk from disk.
Co-authored-by: Ferenc Szabo <ferenc.szabo@ethereum.org>
* RequestFromPeers does not use peers marked as lightnode
* fix warning about variable name
* write tests for RequestFromPeers
* lightnodes should be omitted from the addressbook
* resolve pr comments regarding logging, formatting and comments
* resolve pr comments regarding comments and added a missing newline
* add assertions to check peers in live connections
