Commit graph

35 commits

Author SHA1 Message Date
moneromooo-monero
10da0a0b7c
add a --fakechain argument for tests
The core tests use the blockchain, and reset it to be able
to add test data to it. This does not play nice with the
databases, since those will save that data without an explicit
save call.
We add a fakechain flag that the tests will set, which tells
the core and blockchain code to use a separate database, as
well as skip a few things like checkpoints and fixup, which
only make sense for real data.
2015-12-13 11:38:37 +00:00
moneromooo-monero
932994c0cb
Relay transactions when they linger too long in the pool
The last relayed time of a transaction is maintained, and
transactions will be relayed again if they are still in the
pool after a certain amount of time, which increases with
the transaction's age. All such transactions are resent,
whether or not they originated on the local node.
2015-11-21 00:56:21 +00:00
moneromooo-monero
a7177610b3
core: add consts where appropriate 2015-09-19 16:47:35 +01:00
moneromooo-monero
8ffc508cef
core: moan when we think an update is needed to get latest hard fork info 2015-09-13 18:09:57 +01:00
moneromooo-monero
83bbea4c7f
Add a is_key_image_spent daemon command and RPC call 2015-08-11 10:52:41 +01:00
NoodleDoodleNoodleDoodleNoodleDoodleNoo
e5d2680094 ** CHANGES ARE EXPERIMENTAL (FOR TESTING ONLY)
Bockchain:
1. Optim: Multi-thread long-hash computation when encountering groups of blocks.
2. Optim: Cache verified txs and return result from cache instead of re-checking whenever possible.
3. Optim: Preload output-keys when encoutering groups of blocks. Sort by amount and global-index before bulk querying database and multi-thread when possible.
4. Optim: Disable double spend check on block verification, double spend is already detected when trying to add blocks.
5. Optim: Multi-thread signature computation whenever possible.
6. Patch: Disable locking (recursive mutex) on called functions from check_tx_inputs which causes slowdowns (only seems to happen on ubuntu/VMs??? Reason: TBD)
7. Optim: Removed looped full-tx hash computation when retrieving transactions from pool (???).
8. Optim: Cache difficulty/timestamps (735 blocks) for next-difficulty calculations so that only 2 db reads per new block is needed when a new block arrives (instead of 1470 reads).

Berkeley-DB:
1. Fix: 32-bit data errors causing wrong output global indices and failure to send blocks to peers (etc).
2. Fix: Unable to pop blocks on reorganize due to transaction errors.
3. Patch: Large number of transaction aborts when running multi-threaded bulk queries.
4. Patch: Insufficient locks error when running full sync.
5. Patch: Incorrect db stats when returning from an immediate exit from "pop block" operation.
6. Optim: Add bulk queries to get output global indices.
7. Optim: Modified output_keys table to store public_key+unlock_time+height for single transaction lookup (vs 3)
8. Optim: Used output_keys table retrieve public_keys instead of going through output_amounts->output_txs+output_indices->txs->output:public_key
9. Optim: Added thread-safe buffers used when multi-threading bulk queries.
10. Optim: Added support for nosync/write_nosync options for improved performance (*see --db-sync-mode option for details)
11. Mod: Added checkpoint thread and auto-remove-logs option.
12. *Now usable on 32-bit systems like RPI2.

LMDB:
1. Optim: Added custom comparison for 256-bit key tables (minor speed-up, TBD: get actual effect)
2. Optim: Modified output_keys table to store public_key+unlock_time+height for single transaction lookup (vs 3)
3. Optim: Used output_keys table retrieve public_keys instead of going through output_amounts->output_txs+output_indices->txs->output:public_key
4. Optim: Added support for sync/writemap options for improved performance (*see --db-sync-mode option for details)
5. Mod: Auto resize to +1GB instead of multiplier x1.5

ETC:
1. Minor optimizations for slow-hash for ARM (RPI2). Incomplete.
2. Fix: 32-bit saturation bug when computing next difficulty on large blocks.

[PENDING ISSUES]
1. Berkely db has a very slow "pop-block" operation. This is very noticeable on the RPI2 as it sometimes takes > 10 MINUTES to pop a block during reorganization.
   This does not happen very often however, most reorgs seem to take a few seconds but it possibly depends on the number of outputs present. TBD.
2. Berkeley db, possible bug "unable to allocate memory". TBD.

[NEW OPTIONS] (*Currently all enabled for testing purposes)
1. --fast-block-sync arg=[0:1] (default: 1)
	a. 0 = Compute long hash per block (may take a while depending on CPU)
	b. 1 = Skip long-hash and verify blocks based on embedded known good block hashes (faster, minimal CPU dependence)
2. --db-sync-mode arg=[[safe|fast|fastest]:[sync|async]:[nblocks_per_sync]] (default: fastest:async:1000)
	a. safe = fdatasync/fsync (or equivalent) per stored block. Very slow, but safest option to protect against power-out/crash conditions.
	b. fast/fastest = Enables asynchronous fdatasync/fsync (or equivalent). Useful for battery operated devices or STABLE systems with UPS and/or systems with battery backed write cache/solid state cache.
	Fast    - Write meta-data but defer data flush.
	Fastest - Defer meta-data and data flush.
	Sync    - Flush data after nblocks_per_sync and wait.
	Async   - Flush data after nblocks_per_sync but do not wait for the operation to finish.
3. --prep-blocks-threads arg=[n] (default: 4 or system max threads, whichever is lower)
        Max number of threads to use when computing long-hash in groups.
4. --show-time-stats arg=[0:1] (default: 1)
	Show benchmark related time stats.
5. --db-auto-remove-logs arg=[0:1] (default: 1)
	For berkeley-db only. Auto remove logs if enabled.

**Note: lmdb and berkeley-db have changes to the tables and are not compatible with official git head version.
	At the moment, you need a full resync to use this optimized version.

[PERFORMANCE COMPARISON]
**Some figures are approximations only.
Using a baseline machine of an i7-2600K+SSD+(with full pow computation):
1. The optimized lmdb/blockhain core can process blocks up to 585K for ~1.25 hours + download time, so it usually takes 2.5 hours to sync the full chain.
2. The current head with memory can process blocks up to 585K for ~4.2 hours + download time, so it usually takes 5.5 hours to sync the full chain.
3. The current head with lmdb can process blocks up to 585K for ~32 hours + download time and usually takes 36 hours to sync the full chain.

Averate procesing times (with full pow computation):
lmdb-optimized:
1. tx_ave = 2.5 ms / tx
2. block_ave = 5.87 ms / block
memory-official-repo:
1. tx_ave = 8.85 ms / tx
2. block_ave = 19.68 ms / block
lmdb-official-repo (0f4a036437)
1. tx_ave = 47.8 ms / tx
2. block_ave = 64.2 ms / block

**Note: The following data denotes processing times only (does not include p2p download time)
lmdb-optimized processing times (with full pow computation):
1. Desktop,  Quad-core / 8-threads 2600k  (8Mb) - 1.25 hours processing time (--db-sync-mode=fastest:async:1000).
2. Laptop,   Dual-core / 4-threads U4200  (3Mb) - 4.90 hours processing time (--db-sync-mode=fastest:async:1000).
3. Embedded, Quad-core / 4-threads Z3735F (2x1Mb) - 12.0 hours processing time (--db-sync-mode=fastest:async:1000).

lmdb-optimized processing times (with per-block-checkpoint)
1. Desktop,  Quad-core / 8-threads 2600k  (8Mb) - 10 minutes processing time (--db-sync-mode=fastest:async:1000).

berkeley-db optimized processing times (with full pow computation)
1. Desktop, Quad-core / 8-threads 2600k  (8Mb) - 1.8 hours processing time (--db-sync-mode=fastest:async:1000).
2. RPI2. Improved from estimated 3 months(???) into 2.5 days (*Need 2AMP supply + Clock:1Ghz + [usb+ssd] to achieve this speed) (--db-sync-mode=fastest:async:1000).

berkeley-db optimized processing times (with per-block-checkpoint)
1. RPI2. 12-15 hours (*Need 2AMP supply + Clock:1Ghz + [usb+ssd] to achieve this speed) (--db-sync-mode=fastest:async:1000).
2015-07-15 23:20:16 -07:00
Riccardo Spagni
8005a0c7a1
Merge pull request #269
641d824 Keep memory pool consistent when stuck tx removed (warptangent)
b76857f Add mempool output to daemon via command and RPC (warptangent)
2015-05-06 08:09:31 +02:00
warptangent
b76857f9d9
Add mempool output to daemon via command and RPC
This is for the "print_pool" command and "get_transaction_pool" RPC
method.

Add mempool's spent key images to the results.
2015-04-23 07:04:36 -07:00
Thomas Winget
2717883dba
DNS Checkpoint updating-related fixes/changes
Only one thread will be doing the updating.

Two valid responses must match, and the first two that match will be
used.
2015-04-22 04:36:39 -04:00
Thomas Winget
a8bc7182ea
Merge BlockchainDB into upstream 2015-04-07 17:56:18 -04:00
rfree2monero
3cbdf198f1 Merge remote-tracking branch 'monero-official/master' into network-1.6-work1 2015-04-01 18:24:45 +02:00
Thomas Winget
5c0bc0050c
Merge upstream updates into blockchain branch 2015-03-25 05:56:36 -04:00
Thomas Winget
96cbecffd7
RPC calls for background daemon added in
The RPC calls the daemon executable uses to talk to the running daemon
instance have mostly been added back in.  Rate limiting has not been
added in upstream, but is on its way in a separate effort, so those
calls are still NOPed out.
2015-02-24 00:44:36 -05:00
Thomas Winget
9193d6fb5b
Daemonize changes pulled in -- daemon builds
many RPC functions added by the daemonize changes
(and related changes on the upstream dev branch that were not merged)
were commented out (apart from return).  Other than that, this *should*
work...at any rate, it builds, and that's something.
2015-02-24 00:05:19 -05:00
rfree2monero
ae2a50659f 2014 network limit 1.2 +utils +toc -doc -drmonero
new update of the pr with network limits

more debug options:
discarding downloaded blocks all or after given height.
trying to trigger the locking errors.

debug levels polished/tuned to sane values.
debug/logging improved.

warning: this pr should be correct code, but it could make
an existing (in master version) locking error appear more often.

it's a race on the list (map) of peers, e.g. between closing/deleting
them versus working on them in net-limit sleep in sending chunk.

the bug is not in this code/this pr, but in the master version.

the locking problem of master will be fixed in other pr.

problem is ub, and in practice is seems to usually cause program abort
(tested on debian stable with updated gcc). see --help for option
to add sleep to trigger the error faster.
2015-02-20 22:28:03 +01:00
rfree2monero
5ce4256e3d 2014 network limit 1.1 +utils +toc -doc -drmonero
Update of the PR with network limits

works very well for all speeds
(but remember that low download speed can stop upload
because we then slow down downloading of blockchain
requests too)

more debug options

fixed pedantic warnings in our code
should work again on Mac OS X and FreeBSD
fixed warning about size_t
tested on Debian, Ubuntu, Windows(testing now)

TCP options and ToS (QoS) flag
FIXED peer number limit
FIXED some spikes in ingress/download
FIXED problems when other up and down limit
2015-02-20 22:13:00 +01:00
warptangent
84fe5fbd65
Add compile-time support for both db implementations: in-memory and LMDB
Usage:

default is lmdb for blockchain branch:
$ make release

same as:
$ DATABASE=lmdb make release

for original in-memory implementation:
$ DATABASE=memory make release
2015-02-02 11:53:09 -08:00
Thomas Winget
74a1a89e27
Integrate BlockchainDB into cryptonote_core
Probably needs more looking at -- lot of things were done...in a rushed
sort of way.  That said, it all builds and *should* be at least
testable.

update for rebase (warptangent 2015-01-04)
  fix conflicts with upstream CMakeLists.txt files

  src/CMakeLists.txt (remove edits from original commit)
  tests/CMakeLists.txt (remove edits from original commit)
  src/cryptonote_core/CMakeLists.txt (edit)
  - use blockchain db .cpp and .h files
  - add LMDB_LIBRARIES
2015-01-04 19:29:51 -08:00
Riccardo Spagni
f4b69d553a
year updated in license 2015-01-02 18:52:46 +02:00
Thomas Winget
c0bdd511c3 Daemon should now exit on conflicting checkpoints
If the "enforce DNS checkpoints" flag is not enabled, it should not exit
if DNS checkpoints conflict with the others, but should still print a
warning to the user.
2014-09-30 16:21:37 -04:00
Thomas Winget
f0b4138f1f various changes to runtime checkpoint updating
json checkpoints will be checked every 10 minutes, dns every 60.

json checkpoints always enforced, dns still with flag.

conflicting checkpoints is hard fail, but soft if dns enforce flag not
set and dns checkpoints are wonky.
2014-09-30 16:21:37 -04:00
Thomas Winget
b261d9207b DNS checkpoint updating added, and daemon flag to enforce them
The daemon should now check for updated checkpoints from
checkpoints.moneropulse.org as well as from the configured json file
every ~1hr (and on launch).

The daemon now has a flag to enable enforcing these checkpoints (rather
    than just printing a warning when they fail).

TODO: an easily configurable list of DNS servers to check for
checkpoints as opposed to the hard-coded "checkpoints.moneropulse.org"
2014-09-30 16:21:37 -04:00
Thomas Winget
30caebfce3 reload checkpoints file every ~hr and print if any fail
also some other minor bug squashing and code formatting
2014-09-30 16:21:37 -04:00
Riccardo Spagni
59a8366bb1 Revert "low risk, potentially varint overflow bug patched thanks to BBR"
This reverts commit 4e2b2b942d.
2014-09-25 08:24:42 +02:00
Riccardo Spagni
4e2b2b942d low risk, potentially varint overflow bug patched thanks to BBR 2014-09-24 22:17:33 -04:00
Zachary Michaels
018e251cc0
Separate testnet default data dir 2014-09-15 15:54:19 +02:00
Zachary Michaels
07470fd400
Add testnet flag
Source: cryptonotefoundation
2014-09-15 15:53:01 +02:00
Jakob Lind
e4273f2415 #36 simplewallet refresh include optional height param
height param is used optionally in refresh command 

TODO: This should also be the default behaviour 
when generating a new wallet.
2014-08-01 10:17:50 +02:00
fluffypony
6fc995fe5d License updated to BSD 3-clause 2014-07-23 15:03:52 +02:00
Zachary Michaels
a633c11cbb Remove unused function 2014-07-01 14:57:27 -04:00
Zachary Michaels
b3092d4e00 Comment unused functions in cryptonote_core 2014-07-01 14:57:26 -04:00
mydesktop
75fc3e90b1 Fix for orphan fix (check blocksize) 2014-06-11 17:32:53 -04:00
Neozaru
7fea5645e2 'getinfo' daemon HTTP-RPC returns 'target_height' for progress estimations 2014-06-04 22:50:13 +02:00
mydesktop
3a3a817678 0.8.8update 2014-05-25 13:06:40 -04:00
Antonio Juarez
296ae46ed8 moved all stuff to github 2014-03-03 22:07:58 +00:00