possible account leak fix

src/dexorder/base/account.py

@@ -62,6 +62,7 @@ class Account (LocalAccount):
                 Account._all.append(account)
             metric.account_available.set(Account._pool.qsize())
             metric.account_total.set(len(Account._all))
+            log.info(f'Account pool {[a.address for a in Account._all]}')
 
     def __init__(self, local_account: LocalAccount): # todo chain_id?
         super().__init__(local_account._key_obj, local_account._publicapi) # from digging into the source code

src/dexorder/transactions.py

@@ -108,7 +108,11 @@ async def create_and_send_transactions():
         if account is None:
             warningAlert(f'No account available for job {job.id} type "{handler.tag}"', 'no account available')
             continue
+        try:
             await ctx.sign(account)
+        except Exception:
+            await handler.release_account(account)
+            raise
         log.info(f'servicing job {job.request.__class__.__name__} {job.id} with account {account.address} nonce {ctx.tx["nonce"]} tx {ctx.id}')
         # noinspection PyBroadException
         try:
@@ -121,6 +125,7 @@ async def create_and_send_transactions():
             if msg.startswith('nonce too low'):
                 # Nonce too low
                 log.warning(f'Account {account.address} nonce too low')
+                log.info(f'Account nonce is {account._nonce} ({ctx.tx["nonce"]}) but should be {await current_w3.get().eth.get_transaction_count(account.address, 'pending')}')
                 account.reset_nonce()
             elif msg.startswith('insufficient funds'):
                 warningAlert('Account Empty', f'Account {account.address} is out of funds!')