Commit Graph

51 Commits

Author SHA1 Message Date
Péter Szilágyi a4246c2da6 eth, eth/downloader: handle a potential unknown parent attack 2015-05-14 15:24:18 +03:00
Péter Szilágyi d2d5dbc6fb eth/downloader: fix active peer shadowing, polish func names 2015-05-13 13:13:43 +03:00
obscuren 48bd48876c eth, eth/downloader: moved pending queue error message to debug 2015-05-11 17:27:34 +02:00
Péter Szilágyi 064cf16099 eth/downloader: use count instead of peers, clearer 2015-05-11 17:21:22 +02:00
Péter Szilágyi d37a2559b9 eth/downloader: revert to demotion, use harsher penalty 2015-05-11 17:21:22 +02:00
Péter Szilágyi 70c65835f4 eth/downloader: fix #910, thread safe peers & polishes 2015-05-11 17:21:22 +02:00
obscuren 05715f27cf eth: added a cancel method for the downloader
Added a cancel method to the downloader which gracefully shuts down any
active syncing process (hash fetching or block downloading) and resets
the queue and remove any pending blocks.

Issue with the downloader which would stall because of an active ongoing
process when an invalid block was found.
2015-05-10 00:34:07 +02:00
Péter Szilágyi edad47bf0e eth/downloader: fix leftover state between syncs 2015-05-08 17:39:03 +03:00
Péter Szilágyi bd5720f480 eth, eth/downloader: handle sync errors a bit more gracefully 2015-05-08 15:22:48 +03:00
Péter Szilágyi 9d188f73b5 eth, eth/downloader: make synchronize thread safe 2015-05-07 21:07:20 +03:00
Péter Szilágyi 45f8304f3c eth/downloader: fix expiration not running while fetching 2015-05-07 12:59:19 +03:00
Péter Szilágyi 4800c94392 eth/downloader: prioritize block fetch based on chain position, cap memory use 2015-05-07 10:57:34 +03:00
obscuren 1470b22e90 downloader: hash downloading recovery
If a peer fails to respond (disconnect, etc) during hash downloading
switch to a different peer which has it's current_hash in the queue's
peer set.
2015-05-03 16:27:03 +02:00
obscuren 493181ea09 eth/downloader: changed has to blockHashes for chain linking 2015-05-03 14:10:31 +02:00
obscuren 016f152b36 eth, eth/downloader: Moved block processing & graceful shutdown
The downloader is no longer responsible for processing blocks. The
eth-protocol handler now takes care of this instead.

Added graceful shutdown during block processing. Closes #846
2015-05-01 15:58:44 +02:00
obscuren 8595198c1b eth/downloader: delete blocks from queue 2015-04-30 17:51:47 +02:00
obscuren 9b6e8f6195 eth, eth/downloader: remove bad peers from peer set
Peers in the eth protocol handler are now being ignored for catch up.
2015-04-30 12:38:16 +02:00
obscuren f8c27d7159 eth/downloader: drop block 2015-04-29 19:55:04 +02:00
obscuren dfbf580354 eth/downloader: ignore orphan blocks in the downloader.
When blocks have been sorted and are being processed, orphan blocks
should be ignored and thrown out. The protocol handler is responsible
for downloading blocks which have missing parents.
2015-04-29 14:49:37 +02:00
obscuren 735b029db9 core: return the index of the block that failed when inserting a chain 2015-04-29 14:00:24 +02:00
obscuren 13364a2dcf eth/downloader: reset the chain when parent is missing during processing 2015-04-29 13:40:39 +02:00
obscuren 4b7bdc3766 eth: check if downloader is busy before showing log message 2015-04-29 12:51:05 +02:00
obscuren 7ce3d06402 eth/downloader: removed update loop and synch channel 2015-04-24 18:28:46 +02:00
obscuren d84c2202e7 eth, eth/downloader: simplified synchronisation process 2015-04-24 15:38:10 +02:00
obscuren 31f82eb334 eth, eth/downloader: don't require td on downloader. Fixed tests 2015-04-24 15:04:58 +02:00
obscuren b86e7526e1 eth, eth/downloader: moved peer selection to protocol handler 2015-04-24 14:40:32 +02:00
obscuren 45da3e17e2 core: added chain head reset to known block 2015-04-20 12:29:02 +02:00
obscuren 5dd56bb474 geth: admin download status 2015-04-19 21:46:19 +02:00
obscuren ed07ffcde5 downloader: fixed tests with low ttl 2015-04-19 17:37:01 +02:00
obscuren dcf1a1988a moved 2015-04-19 17:14:15 +02:00
obscuren cce4158cfc Removed debug println 2015-04-19 13:33:14 +02:00
obscuren c58918c84a downloader: moved chunk ignoring. Fixes issue with catching up 2015-04-19 13:30:34 +02:00
obscuren 5c59d95532 downloader: defer peer reset after download 2015-04-19 01:39:37 +02:00
obscuren 86ecdcd5ff downloader: reset hashTtl on receive 2015-04-19 00:15:05 +02:00
obscuren 50e096e627 downloader: don't remove peers. keep them around 2015-04-18 23:56:08 +02:00
obscuren 6830ddb659 downloader: free up peers from work when the downloader resets 2015-04-18 20:25:55 +02:00
obscuren 7c5d50f627 downloader: throw an error if there are no peers available for download
If all peers have been tried during the block download process and some
hashes are unfetchable (available peers > 0 and fetching == 0) throw an
error so the process can be aborted.
2015-04-18 19:30:29 +02:00
obscuren 78e37e98e7 downloader: fixed a race condition for download status 2015-04-18 19:14:25 +02:00
obscuren 0d536734fe eth: adapted to new synchronous api of downloader's AddBlock 2015-04-18 18:57:59 +02:00
obscuren c2c24b3bb4 downloader: improved downloading and synchronisation
* Downloader's peers keeps track of peer's previously requested hashes
  so that we don't have to re-request
* Changed `AddBlock` to be fully synchronous
2015-04-18 18:55:13 +02:00
obscuren 60613b57d1 downloader: make sure that hashes are only accepted from the active peer 2015-04-18 17:35:03 +02:00
obscuren 8244825bbf downloader: reset the queue if a peer response with an empty hash set 2015-04-18 15:14:12 +02:00
obscuren 8f873b762b downloader: all handlers check for isBusy 2015-04-18 03:15:26 +02:00
obscuren 2339ee9910 Merge branch 'develop' into downloader-proto
Conflicts:
	eth/downloader/downloader.go
2015-04-18 01:10:32 +02:00
obscuren eac2df02d1 downloader: fixed a typo 2015-04-17 00:11:45 +02:00
obscuren 205378016f downloader: added demotion / promotion in prep. for rep. system 2015-04-16 02:16:33 +02:00
obscuren eda10c7317 downloader: updated downloader and fixed issues with catch up
Properly ignore blocks coming from peers not in our peer list (blocked)
and do never request anything from bad peers. Added some checks to
account for blocks known when requesting hashes (missing parents).
2015-04-16 01:29:32 +02:00
obscuren c4678ffd77 downloader: updated downloader and fixed issues with catch up
Properly ignore blocks coming from peers not in our peer list (blocked)
and do never request anything from bad peers. Added some checks to
account for blocks known when requesting hashes (missing parents).
2015-04-16 00:14:31 +02:00
obscuren a8a2b2a488 downloader: added missing blocks catchup functionality
When a parent is missing in the block list an attempt should be made to
fetch the missing parent and grandparents.
2015-04-13 16:38:32 +02:00
obscuren 7dcb9825c3 downloader: return an error for peer.fetch and return chunk to queue
If a peer was somehow already fetching and somehow managed to end up in
the `available` pool it should return it's work.
2015-04-12 13:36:01 +02:00