* Libp2p protectors no longer needed, use PSK directly
* Generate cluster 32-byte secret here (helper gone from pnet)
* Switch to go-log/v2 in all places
* DHT bootstrapping not needed. Adjust DHT options for tests.
* Do not rely on dissappeared CidToDsKey and DsKeyToCid functions fro dshelp.
* Disable QUIC (does not support private networks)
* Fix tests: autodiscovery started working properly
This should fix a problem pointed out in #787 about a peer not
being able to recover in CRDT mode after a router re-start (when we lose
all connections to all peers). We attempt to re-open connections to
boostrap peers regularly.
This adds a new "crdt" consensus component using go-ds-crdt.
This implies several refactors to fully make cluster consensus-component
independent:
* Delete mapstate and fully adopt dsstate (after people have migrated).
* Return errors from state methods rather than ignoring them.
* Add a new "datastore" modules so that we can configure datastores in the
main configuration like other components.
* Let the consensus components fully define the "state.State". Thus, they do
not receive the state, they receive the storage where we put the state (a
go-datastore).
* Allow to customize how the monitor component obtains Peers() (the current
peerset), including avoiding using the current peerset. At the moment the
crdt consensus uses the monitoring component to define the current peerset.
Therefore the monitor component cannot rely on the consensus component to
produce a peerset.
* Re-factor/re-implementation of "ipfs-cluster-service state"
operations. Includes the dissapearance of the "migrate" one.
The CRDT consensus component defines creates a crdt-datastore (with ipfs-lite)
and uses it to intitialize a dssate. Thus the crdt-store is elegantly
wrapped. Any modifications to the state get automatically replicated to other
peers. We store all the CRDT DAG blocks in the local datastore.
The consensus components only expose a ReadOnly state, as any modifications to
the shared state should happen through them.
DHT and PubSub facilities must now be created outside of Cluster and passed in
so they can be re-used by different components.
This takes advantange of the latest features in go-cid, peer.ID and
go-multiaddr and makes the Go types serializable by default.
This means we no longer need to copy between Pin <-> PinSerial, or ID <->
IDSerial etc. We can now efficiently binary-encode these types using short
field keys and without parsing/stringifying (in many cases it just a cast).
We still get the same json output as before (with minor modifications for
Cids).
This should greatly improve Cluster performance and memory usage when dealing
with large collections of items.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
Adding more missing pieces in config
Use the right package(not the inbuilt one)
Setup rpc client for proxy in the cluster
Add back SetClient and Shutdown into Connector as they are required to
implement Component interface
Add `ipfsproxy` as into list of logging identifier and add its default
log level
License: MIT
Signed-off-by: Kishan Mohanbhai Sagathiya <kishansagathiya@gmail.com>
This removes a bunch of the channel dance and block forwarding
by having the adder submodules be DAGServices themselves and take
Add() directly from the ipfsAdder.
License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>
This puts some sanity in this. It's not super correct (name of facilities
depend of the component and the main cluster component should not hard
code them), but it's clear enough. Imho, better than over-engineering
a more elegant approach.
License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>
The multiaddresses protocols for websockets and dns are only registered
with init() function when loading the modules. ipfs-cluster-ctl
uses just the api, which did not load these modules so converting
from serialized types caused bad panics.
We have also ignored errors in the api library under the thinking that it
would only parse things serialized by us, but this has made parsing errors
to go unnoticed. From now, all errors are logged and some precautions
are taking to better handle the possibility of nil objects.
License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>
ipfs-cluster-service now has a migration subcommand that upgrades
persistant state snapshots with an out-of-date format version to the
newest version of raft state. If all cluster members shutdown with
consistent state, upgrade ipfs-cluster, and run the state upgrade command,
the new version of cluster will be compatible with persistent storage.
ipfs-cluster now validates its persistent state upon loading it and exits
with a clear error in the case the state format version is not up to date.
Raft snapshotting is enforced on all shutdowns and the json backup is no
longer run. This commit makes use of recent changes to libp2p-raft
allowing raft states to implement their own marshaling strategies. Now
mapstate handles the logic for its (de)serialization. In the interest of
supporting various potential upgrade formats the state serialization
begins with a varint (right now one byte) describing the version.
Some go tests are modified and a go test is added to cover new ipfs-cluster
raft snapshot reading functions. Sharness tests are added to cover the
state upgrade command.
The disk informer uses "ipfs repo stat" to fetch the RepoSize value and
uses it as a metric.
The numpinalloc allocator is now a generalized ascendalloc which
sorts metrics in ascending order and return the ones with lowest
values.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
It was very idiotic poll a buffer/read it and then write rather than
just have a custom writer.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
This is the third implementation attempt. This time, rather than
broadcasting PeerAdd/Join requests to the whole cluster, we use the
consensus log to broadcast new peers joining.
This makes it easier to recover from errors and to know who exactly
is member of a cluster and who is not. The consensus is, after all,
meant to agree on things, and the list of cluster peers is something
everyone has to agree on.
Raft itself uses a special log operation to maintain the peer set.
The tests are almost unchanged from the previous attempts so it should
be the same, except it doesn't seem possible to bootstrap a bunch of nodes
at the same time using different bootstrap nodes. It works when using
the same. I'm not sure this worked before either, but the code is
simpler than recursively contacting peers, and scales better for
larger clusters.
Nodes have to be careful about joining clusters while keeping the state
from a different cluster (disjoint logs). This may cause problems with
Raft.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
This commit adds PeerAdd() and PeerRemove() endpoints, CLI support,
tests. Peer management is a delicate issue because of how the consensus
works underneath and the places that need to track such peers.
When adding a peer the procedure is as follows:
* Try to open a connection to the new peer and abort if not reachable
* Broadcast a PeerManagerAddPeer operation which tells all cluster members
to add the new Peer. The Raft leader will add it to Raft's peerset and
the multiaddress will be saved in the ClusterPeers configuration key.
* If the above fails because some cluster node is not responding,
broadcast a PeerRemove() and try to undo any damage.
* If the broadcast succeeds, send our ClusterPeers to the new Peer along with
the local multiaddress we are using in the connection opened in the
first step (that is the multiaddress through which the other peer can reach us)
* The new peer updates its configuration with the new list and joins
the consensus
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
