rpc: Worker threads still run after timeout error for two ...

What are recommended bitcoin.conf settings when using c-lightning?

I'm running full (non-pruned) bitcoin core 0.20 on Ubuntu 18. My current bitcoin.conf is:
txindex=1 listenonion=0 server=1 rpcuser=xxx rpcpassword=xxx rpcthreads=1 
If I use c-lightning, what changes do I need to make to the above file? Thanks in advance.
submitted by 1Tim1_15 to lightningnetwork [link] [comments]

Configuring bitcoin full node for faster RPC calls

I have been working with a bitcoin full node and attempting to parse the blockchain data, whilst storing it in an external database.
The script I am using iterates through each block using getblock[hash;2] which populates multiple tables. However in order to get the current blocks input values we have to perform an expensive getRawTransaction each previous txid.
We have singled this out as the bottleneck in the code for most time taken, rendering the script very slow. We have also tried using RPC batching but this also takes considerable amount of time, potentially more with a memory overhead.
I am wondering if there is a best configuration of the daemon to improve RPC call speed? i.e. using rpcthread/queue, increasing dbcache etc.
Another option would be to implement blocks only mode, by reducing the bandwidth could this improve RPC commands?
Bitcoin Core Daemon version v0.16.0.0-g4b4d7eb255
Server Details OS-Ubuntu 16.04 32 GB ram
submitted by dandan4561 to Bitcoin [link] [comments]

What settings should you use to run a full core node on a Raspberry Pi?

I have a Raspberry Pi B+
specs:
I have used http://www.raspberrypifullnode.com/ and http://raspnode.com/diyBitcoin.html as my guides so far (awesome resources btw) but wanted to open the discussion here.
After temporarily bumping the swapfile size to 1GB, I compiled bitcoind with:
./autogen.sh ./configure --disable-wallet make sudo make install 
I then started bitcoind with:
bitcoind -dbcache=4 -rpcthreads=1 -par=1 & 
Unfortunately the bitcoin server keeps crashing after a while.
Which compilation/run options should I use to conserve the most memory?
Thanks!
submitted by spacecowsgomoon to Bitcoin [link] [comments]

Why is does it take so long to shut down an node used only as a JSON-RPC server?

I'm trying to sync a full node that will only be used as a JSON-RPC server (no mining). I tried to modify the config file and added a service unit, so that the node can run in a low-end VPS with minimum RAM and CPU capabilities. The problem is that the server takes too long to stop, and it's terminated by the system, so it always start rewinding blocks that have been already downloaded.
Here is my configuration file:
server=1 daemon=1 #debug=mempool debug=rpc # If run on the test network instead of the real bitcoin network # testnet=1 # You must set rpcuser and rpcpassword to secure the JSON-RPC api # Please make rpcpassword to something secure, `5gKAgrJv8CQr2CGUhjVbBFLSj29HnE6YGXvfykHJzS3k` for example. # Listen for JSON-RPC connections on  (default: 8332 or testnet: 18332) rpcuser=myuser rpcpassword=pypassword rpcport=8332 # Enable blocks pruning #prune=550 # Limit dbcache=50 maxconnections=4 rpcthreads=2 
And the service unit:
# It is not recommended to modify this file in-place, because it will # be overwritten during package upgrades. If you want to add further # options or overwrite existing ones then use # $ systemctl edit bitcoind.service # See "man systemd.service" for details. # Note that almost all daemon options could be specified in # /etc/bitcoin/bitcoin.conf [Unit] Description=Bitcoin daemon After=network.target [Service] ExecStart=/usbin/bitcoind -daemon=0 -datadir=/home/jsonrpc/bitcoin -conf=/home/jsonrpc/bitcoin/settings.conf ExecStop=/usbin/bitcoin-cli -datadir=/home/jsonrpc/bitcoin -conf=/home/jsonrpc/bitcoin/settings.conf stop # Creates /run/bitcoind owned by bitcoin #RuntimeDirectory=/home/jsonrpc/bitcoin WorkingDirectory=/home/jsonrpc/bitcoin User=jsonrpc Group=jsonrpc TimeoutStopSec=15m #CPUQuota=4% #MemoryLimit=128M #IOReadIOPSMax=10 #IOWriteIOPSMax=10 Type=simple #Restart=on-failure # Hardening measures #################### # Provide a private /tmp and /vatmp. PrivateTmp=true # Mount /usr, /boot/ and /etc read-only for the process. ProtectSystem=full # Disallow the process and all of its children to gain # new privileges through execve(). NoNewPrivileges=true # Use a new /dev namespace only populated with API pseudo devices # such as /dev/null, /dev/zero and /dev/random. PrivateDevices=true # Deny the creation of writable and executable memory mappings. # Commented out as it's not supported on Debian 8 or Ubuntu 16.04 LTS #MemoryDenyWriteExecute=true [Install] WantedBy=multi-user.target 
submitted by rraallvv to Bitcoin [link] [comments]

solo mine with bitcoin abc and bfgminer

Just for the fun of it.....
bitcoin-qt.exe -server=1 -rpcuser=michael -rpcpassword=pass -rpcthreads=4 -rpcallowip=192.168.1.8 -rpcport=8332 -rpcbind=192.168.1.8
bfgminer -o http://192.168.1.8:8332 -u michael -p pass --no-stratum -S opencl:auto --verbose --coinbase-addr 18SHLhskjwg7Sq7c45De8XS6mjke4f3nTb --coinbase-sig "Dan Conrad"
submitted by DanConrad to BitcoinABC [link] [comments]

Bitcoind JSON-RPC is very slow for dumping GetRawTransaction even with a high perf computer.

bitcoin.conf is as folow and my query code is parallel for 100 theads. But it still slow and CPU usage is about 20% on a 8700K with 32GB and M2 Samsung 960 SSD!
server=1 txindex=1
dbcache=2048 rpcworkqueue=128 rpcthreads=128 rpctimeout=220
Did I miss something ?
submitted by tulerpeton to Bitcoin [link] [comments]

D5k BOUNTY P2Pool Node Issues

After mining successfully for several weeks, I shut down my miner last night after a ~4 day non-stop session for some gaming. Upon trying to fire it back up, I am getting errors with my P2Pool Node that seem to be fairly well documented elsewhere, but that I can nonetheless fail to resolve. Excerpts from the log files are below. It will do this continually, while SGMiner reports "Waiting on work" or "Stratum requested work restart" notifications. Connecting SGMiner to a public pool works fine.
2014-03-23 00:54:16.415000 > >>> Warning: LOST CONTACT WITH BITCOIND for 1.7 minutes! Check that it isn't frozen or dead!
2014-03-23 00:54:16.416000 > ########################################
2014-03-23 00:54:16.416000 P2Pool: 5784 shares in chain (3108 verified/5790 total) Peers: 7 (0 incoming)
2014-03-23 00:54:16.416000 Local: 0H/s in last 0.0 seconds Local dead on arrival: ??? Expected time to share: ???
2014-03-23 00:54:16.416000 Shares: 0 (0 orphan, 0 dead) Stale rate: ??? Efficiency: ??? Current payout: 0.0000 DOGE
2014-03-23 00:54:16.417000 Pool: 1365MH/s Stale rate: 22.8% Expected time to block: 44.9 minutes
2014-03-23 00:54:16.603000 Lost peer 178.63.15.130:8555 - Connection to the other side was lost in a non-clean fashion.
2014-03-23 01:31:47.326000 > Unhandled Error
2014-03-23 01:31:47.326000 > Traceback (most recent call last):
2014-03-23 01:31:47.327000 > File "C:\Mining\p2pool-rav-master\p2pool\util\variable.py", line 74, in set
2014-03-23 01:31:47.327000 > self.changed.happened(value)
2014-03-23 01:31:47.327000 > File "C:\Mining\p2pool-rav-master\p2pool\util\variable.py", line 42, in happened
2014-03-23 01:31:47.328000 > func(*event)
2014-03-23 01:31:47.328000 > File "C:\Mining\p2pool-rav-master\p2pool\work.py", line 123, in
2014-03-23 01:31:47.328000 > self.node.best_share_var.changed.watch(lambda _: self.new_work_event.happened())
2014-03-23 01:31:47.328000 > File "C:\Mining\p2pool-rav-master\p2pool\util\variable.py", line 42, in happened
2014-03-23 01:31:47.328000 > func(*event)
2014-03-23 01:31:47.329000 > --- ---
2014-03-23 01:31:47.329000 > File "C:\Mining\p2pool-rav-master\p2pool\bitcoin\stratum.py", line 38, in _send_work
2014-03-23 01:31:47.329000 > x, got_response = self.wb.get_work(*self.wb.preprocess_request('' if self.username is None else self.username))
2014-03-23 01:31:47.329000 > File "C:\Mining\p2pool-rav-master\p2pool\work.py", line 179, in preprocess_request
2014-03-23 01:31:47.329000 > raise jsonrpc.Error_for_code(-12345)(u'lost contact with bitcoind')
2014-03-23 01:31:47.330000 > p2pool.util.jsonrpc.NarrowError: -12345 lost contact with bitcoind
...And then that second bit repeats 3-4 times...
Also, I can't seem to find it, but part of the repeating error as I saw somewhere in the log last night was that it was trying to connect basically to itself via my internet IP. Nothing about my system or network configuration has changed.
What I have tried
After the error, I re-downloaded the latest P2Pool-rav-master files and replaced them in my mining folder, leaving the same .conf in my roaming wallet folder.
I added (Via a recommendation from this thread, after a suggestion from another that it was due to a memory leak of some kind) the arg "rpcthreads=100" and then changed it to "rpcthreads=250" (more's better, right?) to my wallet .conf file.
Neither of these had any effect. Obviously.
TL/DR- Miner fine, P2Pool node has started erring after weeks of use with no system or network change. How can I fix or reinstall the node?
D5,000 to the person that resolves this issue. Other tips along the way.
submitted by chancegold to dogemining [link] [comments]

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It should be noted that although Bitcoin Core is a multi-threaded program, "the reference Satoshi client is largely single-threaded." Comment by Mike Hearn in BIP 31 (2012) What is meant is that the vast majority of the program's activity takes place in the messaging thread (ThreadMessageHandler - see below.) Almost all of the threads are part of a single, master thread group that is created ... [email protected]: ~ $ bitcoind -version head -n 1 Bitcoin Core Daemon version v0.18.0 [email protected]: ~ $ lsb_release -ds Ubuntu 18.04.3 LTS Hardware: ODROID-HC1 hebasto added the Bug label Sep 28, 2019 use rpcthreads=1 to help see this behavor; Expected behavior is that the RPC thread should eventually be available again. Relevant commits: 16a5c18 7d2cb48. Relevant issues: #5655 (comment) Using rpckeepalive=0 solves this problem, although the above commit messages make it sound like this is only a temporary fix. So hopefully others can replicate this problem now with the steps given above ... There are two variations of the original bitcoin program available; one with a graphical user interface (usually referred to as just “Bitcoin”), and a 'headless' version (called bitcoind).They are completely compatible with each other, and take the same command-line arguments, read the same configuration file, and read and write the same data files. Bitcoin Core is programmed to decide which block chain contains valid transactions. The users of Bitcoin Core only accept transactions for that block chain, making it the Bitcoin block chain that everyone else wants to use. For the latest developments related to Bitcoin Core, be sure to visit the project’s official website.

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