Commit Graph

14 Commits

Author SHA1 Message Date
Hector Sanjuan
2b6dfa45cd cluster-service: add version subcommand and change some startup logging
The --version flag is default from our cli library so I left that. The
version subcommand prints only the version number + the short commit
so it's a bit more easy to parse.

I have additionally reduced the amount of output on start up by converting
some messages to debug. I wish there was a level between INFO and DEBUG
though.

License: MIT
Signed-off-by: Hector Sanjuan <code@hector.link>
2017-12-13 10:25:01 +01:00
Hector Sanjuan
145dced3e8 Cluster: Fix libp2p host getting shutdown in the middle of peer removal
This is what it was likely causing PeerRemove tests to fail randomly
but very often. We cancelled the Cluster context before shutting down
the Consensus component. This killed networking and aborted
the peer remove operations when the leader is removing itself.

As a result, it would error with "leadership lost", which would
trigger a retry which would set the final error to "context cancelled"
because the shutdown of the consensus component proceeds during the
retry, cancelling the consensus context.

This is not only affecting tests, it might affected operations when
running cluster.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-15 02:33:46 +01:00
Hector Sanjuan
417f30c9ea Avoid shutting down consensus in the middle of a commit
I think this will prevents some random tests failures
when we realize that we are not anymore in the peerset
and trigger a shutdown but Raft has not finished fully
committing the operation, which then triggers an error,
and a retry. But the contexts are cancelled in the retry
so it won't find a leader and will error finally error
with that message.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-14 23:29:56 +01:00
Hector Sanjuan
b852dfa892 Fix #219: WIP: Remove duplicate peer accounting
This change removes the duplicities of the PeerManager component:

* No more commiting PeerAdd and PeerRm log entries
* The Raft peer set is the source of truth
* Basic broadcasting is used to communicate peer multiaddresses
  in the cluster
* A peer can only be added in a healthy cluster
* A peer can be removed from any cluster which can still commit
* This also adds support for multiple multiaddresses per peer

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-08 20:04:04 +01:00
Hector Sanjuan
c912cfd205 Issue #131: Destroy raft data when the peer has been removed
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 13:25:28 +01:00
Hector Sanjuan
7a5f8f184b Issue #131: Improvements adding and removing
This works on remove+shutdown procedure and fixes a few small
issues.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 13:00:32 +01:00
Hector Sanjuan
74ed634653 Raft: add cachestore for the log store
Just like consul does it

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 12:17:33 +01:00
Hector Sanjuan
199dbb944a Raft/PeerRm: attempt more orderly peer removal
Wait until FSM has applied the operation.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 12:17:33 +01:00
Hector Sanjuan
7df2277684 Consensus: only log pins committed on the leader.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 12:17:33 +01:00
Hector Sanjuan
18dbf1a93b Issue #131: Do not abort on bad peerset
Print warning instead.

Shutdown raft on peerRm.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 12:17:33 +01:00
Hector Sanjuan
848023e381 Fix #139: Update cluster to Raft 1.0.0
The main differences is that the new version of Raft is more strict
about starting raft peers which already contain configurations.

For a start, cluster will fail to start if the configured cluster
peers are different from the Raft peers. The user will have to
manually cleanup Raft (TODO: an ipfs-cluster-service command for it).

Additionally, this commit adds extra options to the consensus/raft
configuration section, adds tests and improves existing ones and
improves certain code sections.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-11-01 12:17:33 +01:00
Hector Sanjuan
8f06baa1bf Issue #162: Rework configuration format
The following commit reimplements ipfs-cluster configuration under
the following premises:

  * Each component is initialized with a configuration object
  defined by its module
  * Each component decides how the JSON representation of its
  configuration looks like
  * Each component parses and validates its own configuration
  * Each component exposes its own defaults
  * Component configurations are make the sections of a
  central JSON configuration file (which replaces the current
  JSON format)
  * Component configurations implement a common interface
  (config.ComponentConfig) with a set of common operations
  * The central configuration file is managed by a
  config.ConfigManager which:
    * Registers ComponentConfigs
    * Assigns the correspondent sections from the JSON file to each
    component and delegates the parsing
    * Delegates the JSON generation for each section
    * Can be notified when the configuration is updated and must be
    saved to disk

The new service.json would then look as follows:

```json
{
  "cluster": {
    "id": "QmTVW8NoRxC5wBhV7WtAYtRn7itipEESfozWN5KmXUQnk2",
    "private_key": "<...>",
    "secret": "00224102ae6aaf94f2606abf69a0e278251ecc1d64815b617ff19d6d2841f786",
    "peers": [],
    "bootstrap": [],
    "leave_on_shutdown": false,
    "listen_multiaddress": "/ip4/0.0.0.0/tcp/9096",
    "state_sync_interval": "1m0s",
    "ipfs_sync_interval": "2m10s",
    "replication_factor": -1,
    "monitor_ping_interval": "15s"
  },
  "consensus": {
    "raft": {
      "heartbeat_timeout": "1s",
      "election_timeout": "1s",
      "commit_timeout": "50ms",
      "max_append_entries": 64,
      "trailing_logs": 10240,
      "snapshot_interval": "2m0s",
      "snapshot_threshold": 8192,
      "leader_lease_timeout": "500ms"
    }
  },
  "api": {
    "restapi": {
      "listen_multiaddress": "/ip4/127.0.0.1/tcp/9094",
      "read_timeout": "30s",
      "read_header_timeout": "5s",
      "write_timeout": "1m0s",
      "idle_timeout": "2m0s"
    }
  },
  "ipfs_connector": {
    "ipfshttp": {
      "proxy_listen_multiaddress": "/ip4/127.0.0.1/tcp/9095",
      "node_multiaddress": "/ip4/127.0.0.1/tcp/5001",
      "connect_swarms_delay": "7s",
      "proxy_read_timeout": "10m0s",
      "proxy_read_header_timeout": "5s",
      "proxy_write_timeout": "10m0s",
      "proxy_idle_timeout": "1m0s"
    }
  },
  "monitor": {
    "monbasic": {
      "check_interval": "15s"
    }
  },
  "informer": {
    "disk": {
      "metric_ttl": "30s",
      "metric_type": "freespace"
    },
    "numpin": {
      "metric_ttl": "10s"
    }
  }
}
```

This new format aims to be easily extensible per component. As such,
it already surfaces quite a few new options which were hardcoded
before.

Additionally, since Go API have changed, some redundant methods have been
removed and small refactoring has happened to take advantage of the new
way.

License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-10-18 00:00:12 +02:00
Hector Sanjuan
e2efef8469 go lint, go vet, put the Consensus component behind interface.
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-03-14 16:37:29 +01:00
Hector Sanjuan
c2faf48177 Issue #18: Move Consensus and PeerMonitor to its own submodules
License: MIT
Signed-off-by: Hector Sanjuan <hector@protocol.ai>
2017-03-13 18:40:35 +01:00