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Questions about the EOSIO node software that can be used for validating transactions, broadcasting information, producing blocks, responding to API calls, and enabling local development. Questions may pertain to configuring the node, debugging its outputs, interacting with plugins, interacting with remote nodes, and others.

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I am following the example on how to use KV-Map-API from the official page, but when I call cleos set contract ... I get following error message: Error 3070003: Serialization Error Processing WASM ...
Bazinga's user avatar
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Why is the official github no longer updated last year? How do I build the latest image?
zhao xiangjun's user avatar
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When I see EOSIO log errors, there are many things that start with FC. By the way, what exactly does prefix "FC" mean here? ex) FC_DECLARE_DERIVED_EXCEPTION( chain_type_exception, ...
Jun's user avatar
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What causes this error? Error: Required configuration or TAPOS fields are not present I am pushing transactions to a mainnet block producer and I am receiving this error intermittently. Any help would ...
Nat's user avatar
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I am really not certain what happened here, but I was trying to change my keypair in the config.ini file because I could not get it to register as a block producer. And then after restarting it I have ...
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Does the --actor-whitelist and --contract-whitelist work in the sense that if the list is set for that block producer that only those actors can perform transaction and only those contracts may be ...
Nat's user avatar
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I'm working on one node which is running on a testnet, and since I'm kinda new to this environment I'm wondering how can I drop privilege level to a non-root user for running a node on a server? Can I ...
mirsad's user avatar
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When attempting to query a specific block against the trace_api on an EOS node that has full chain data and I'm receiving a 404 error. curl https://mynode.localhost/v1/trace_api/get_block --data '{&...
Cambro's user avatar
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set contract: cleos set contract eosio ./eosio.system -p eosio@active I get : Error 3070003: Serialization Error Processing WASM Publishing contract... Error 3070003: Serialization Error Processing ...
bigbadboii's user avatar
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I know that I can use eosjs to read/query multi_index table data from the chain. However, my goal is to listen to/on these changes. Specifically, I want to receive a notification whenever something ...
basilisk's user avatar
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I'm currently trying to run WAX Mainnet locally but was getting unlinkable_block_exception. I tried to sync from different snapshots but was getting the same error. Starting from a genesis file didn't ...
SlippersNC's user avatar
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I am facing this issue after 3 month when i ran the node, 3060102 reversible_guard_exception: Reversible block log usage is at unsafe levels reversible free: 2096992, guard size: 2097152 {"f"...
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I am trying to install and run an EOS node on macos. I installed eosio with brew. I used brew tap eosio/eosio brew install eosio Everything went alright. But after installation the following folder ...
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I am trying to setup EOSIO production node on Ubuntu. My specs are following: NAME="Ubuntu" VERSION="20.04.3 LTS (Focal Fossa)" with 62GB RAM and 500GB storage. I have installed ...
atifmehmood's user avatar
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So I've been thinking about this from the start but haven't found any resources on how they differ. On the eosio chain api reference, there is a send_transaction method and a push_transaction method. ...
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I am trying running nodeos with Mongo Db Plugin. Following is my nodeos: nodeos \ --signature-provider Pubkey=KEY:PrivKey\ --plugin eosio::producer_plugin \ --plugin eosio::producer_api_plugin \ --...
Varsh's user avatar
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I'm pretty new with EOS programming and I'm trying to run simple broadcast transaction. I'm using following code: let transaction = EosioTransaction() transaction.rpcProvider = EosioRpcProvider(...
Boni's user avatar
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My current multinode blockchain is running with nodeos configuration as : nodeos \ --genesis-json $DATADIR"/../../genesis.json" \ --signature-provider PUBKEY=KEY:PRIVKEY\ ...
Varsh's user avatar
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I have set up of private blockchain using reference https://developers.eos.io/welcome/latest/tutorials/bios-boot-sequence. My concern is to write the systemd service for these nodes to start and stop ...
Varsh's user avatar
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I am running EOS on my laptop. If I execute the "cleos set contract" command and the contract size is more than 200kb, I get an error: error 2021-06-01T17:44:30.084 http-1 http_plugin.cpp:...
Lari's user avatar
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In my private multi-node blockchain. There are 4 nodes. One genesis (only receives blocks) and Others (Produce and receive blocks). All nodes share the same genesis.json file. Inside genesis.json I ...
Varsh's user avatar
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I have a private multi-node blockchain. Because of Nodeos failure, it stops with the dirty flag error. I restart it with the --hard-replay-blockchain, the blocks start replaying. Here, by mistake, I ...
Varsh's user avatar
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I have a private EOS blockchain setup with peer nodes connected. If any problem occurs and the server gets shut down the nodeos gets stopped (sometimes normally sometimes with dirty flag type errors). ...
Varsh's user avatar
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i'am using wax blockchain with the following config.ini blocks-dir = "blocks" chain-state-db-size-mb = 181072 contracts-console = false http-server-address = 0.0.0.0:8888 https-server-...
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I am trying to understand how nodes communicate but I haven't found any information about this. Is NodeOS opensource? I am also quite new in EOSIO.
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Hello i want to make api for buying RAM so is there any api available or any library please let me know but im already using eosjs ,eos-api of nodejs please let me know in comment thank you
Awais Sakhi's user avatar
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Hello im not able to find eosio.boot file and even not able to create my own network im following bios boot sequence please help to solve this issue thank you
Awais Sakhi's user avatar
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On ubuntu 18.04, when I create a new wallet, by default the wallet directory is in the home dir /home/user/eosio-wallet. I am storing all eos related data on disk storage whose path is /storage. I ...
Varsh's user avatar
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I have tried setting up the EOS light history node from the instructions mentioned at 'https://steemit.com/eos/@greymass/introducing-light-history-nodes-for-eos' , build getting successful, but after ...
100th key's user avatar
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Just learning EOS and using EOS studio. Twice now my instances have become unusable. As you can see in the image, there is no longer a start button or a version. The gear/config button does nothing ...
Todd Vance's user avatar
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I have a running EOS blockchain with a connected peer (running) created by following the documentation tutorial https://developers.eos.io/welcome/latest/tutorials/bios-boot-sequence. So, my config ...
Varsh's user avatar
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Why is this important, and how is this used by a client. There's no documentation that describes blocks.index. I understand that it is an index, but from a data management perspective, how is this ...
edmamerto's user avatar
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I can get the irreversible status of the transaction because transaction information has both last_irreversible_block and block_num to know the status. But how to get this information for Block? ...
Varsh's user avatar
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Could you please help me to figure out the following questions? Is it safe if users of a decentralized application use public nodes endpoint via RPC to make transactions to smart contracts? Such as ...
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I'm thinking about the way how to build truly decentralized web applications. Smart contracts looks like the good idea how to run server logic. To be able to push transactions (actions) from web ...
gojihos207's user avatar
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I have an EOS blockchain with connecting Peers (One genesis node and 3 connecting peers). I can get their information using the NET API Plugin, by the command cleos net peers. For the rest of the data,...
Varsh's user avatar
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Let's say I have an application with the following transactions on chain with their respective blocks. block 0 - <nothing> block 1 - eat block 2 - sleep block 3 - play block 4 - cook And let't ...
edmamerto's user avatar
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Can someone point me to code samples on how to use PowerUp feature? Also, how can a wallet be setup to use it automatically? Thanks in advance.
logicvoid0x's user avatar
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Pls help me) Im trying to deploy nodeos, but after snapshot import (from this https://snapshots-main.eossweden.org/) node dont receive next blocks. Tell me please what am I doing wrong. docker-compose ...
ke3l's user avatar
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Can someone explain to me this subjective cpu billing thing, the PR description isn't making sense to me and from the commits, it looks like there was a 10% check on the CPU being added to ensure that ...
Nat's user avatar
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500ms generate 1 block. May I ask you? How many megabytes is the maximum in block? When a block reaches Maximum block size, will it move to the next block? Thank for view and reply.
Son Le's user avatar
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I have been following this EOSIO guide and cannot seem to get past step 2 of section 1.5. https://developers.eos.io/welcome/latest/getting-started/development-environment/start-your-node-setup I start ...
user4462's user avatar
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I am trying to return a value from an action as follows: [[eosio::action("test2")]] int test2(int x) { return x; } The code compiles correctly, and the ABI file shows the correct action ...
Phillip Hamnett - EOS42's user avatar
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The EOSIO developers website says: Nodeos stores the transaction history and a current state. The transaction history is stored in the blocks.log file on disk. State, which is changed by the ...
Phillip Hamnett - EOS42's user avatar
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I have a setup of multinode, one genesis node and another host node inita connected to the genesis node. Nodeos is running on both hosts. Genesis node is producing blocks and inita is receiving them. ...
Varsh's user avatar
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I am creating multiple node setup. When started to build EOS environment, this is one of the step https://developers.eos.io/welcome/latest/getting-started/development-environment/create-development-...
Varsh's user avatar
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I have watched several tutorials for building DApps with EOS. But, All they did in tutorials was deploying smart contract and storing data in the tables. What is the point of doing that?(storing data ...
Sam Lee's user avatar
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I am learning blockchain concept and EOS. From my understanding, data which is stored in blockchain can not be modified. But, data in table in EOS can actually be modified? Then what is difference ...
Sam Lee's user avatar
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I try example from book "Mastering EOS". I have written hello.cpp: #include <eosio/eosio.hpp> using namespace eosio; class [[eosio::contract]] hello: public contract { public: ...
Andrzej's user avatar
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I have created a MultiNode Setup using the Bios Boot sequence https://developers.eos.io/welcome/latest/tutorials/bios-boot-sequence. And created the accounts as 'eosio' & 'accountnum11'. I am ...
cmr's user avatar
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