在 Conflux 网络，通过 cfx_sendRawTransaction 方法发送交易时，如果交易构造不对，发送将会失败。其中一些错误比较常见比如：
- 使用了已被执行过的 nonce
- 使用了已经被发送到交易池中的 nonce
另外还有几种发送失败的情况:
- chainId 使用不匹配
- epochHeight 太大
- gas 超过 1500w (half of block gas limit)
- gas 小余 21000
- data 过大 (超过 200K)
- gasPrice 设置为 0
- 签名错误
- 交易池满
如下是交易发送失败时 cfx_sendRawTransaction 方法返回的 RPC 错误
nonce 使用错误
使用了已经被执行的 nonce
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"Transaction 0x4a2cfa73267139d965ab86d41f2af16db09e62ff92a5abffd7f8e743f36f327c is discarded due to a too stale nonce\""
}
}
此种情况需改为当前可以用的（未用的） nonce
使用了已经被发送到交易池中的 nonce
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"tx already exist\""
}
}
或
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "Tx with same nonce already inserted. To replace it, you need to specify a gas price > {}"
}
}
对于这两种情况代表交易已经被发到交易池中了，如果想更新或替换交易的话，可以使用同样的 nonce, 修改对应的字段，并提高 gasPrice 重新发送
使用了过大的 nonce
发送交易的 nonce 不能币用户当前 nonce 过大，如果超过 2000 将遇到如下错误:
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"Transaction 0xc875a03e1ce01268931a1a428d8f8313714ab5eb9c2b626bd327af7e5c3e8c03 is discarded due to in too distant future\""
}
}
gas
如果交易的 gas 太小(<21000)或太大(>1500w)会返回如下错误:
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"NotEnoughBaseGas { required: 21000, got: 2000 }\""
}
}
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"transaction gas 20000000 exceeds the maximum value 15000000, the half of pivot block gas limit\""
}
}
gasPrice
交易的 gasPrice 不能设置为 0:
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"ZeroGasPrice\""
}
}
data
交易有大小限制，最大不能超过 200k
epochHeight
如果交易的 epochHeight 跟当前网络的 epochNumber 相比小余超过 10w 会遇到如下错误：
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"EpochHeightOutOfBound { block_height: 53800739, set: 0, transaction_epoch_bound: 100000 }\""
}
}
chainId 使用错误
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "\"ChainIdMismatch { expected: 1, got: 2 }\""
}
}
编码或签名错误
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: raw",
"data": "\"RlpIncorrectListLen\""
}
}
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "Can not recover pubkey for Ethereum like tx"
}
}
交易池满
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "txpool is full"
}
}
或
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "Failed imported to deferred pool: Transaction Pool is full"
}
}
对于此种情况，可等待一会重新发送交易，提高交易的 gasPrice 有助于提高发送的几率
其他
节点处于 catch-up mode
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32077,
"message": "Request rejected due to still in the catch up mode.",
"data": null
}
}
等节点数据同步到最新之后再发送
内部错误
{
"jsonrpc": "2.0",
"id": "15922956697249514502",
"error": {
"code": -32602,
"message": "Invalid parameters: tx",
"data": "Failed to read account_cache from storage: {}"
}
}