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Author: Eric Voskuil
Date:  
To: Police Terror
CC: libbitcoin
Subject: Re: [Libbitcoin] Master libbitcoin-server on testnet
It is very close. I've documented considerations in v3 server sources in a comment block.

e

> On Oct 21, 2016, at 10:07 AM, Police Terror <PoliceTerror@???> wrote:
>
> If I setup version2 testnet server, is the protocol API compatible with
> version3? If not, then what is different? I assume it's mostly minor
> changes.
>
> Eric Voskuil:
>> It looks like this could be a distinct issue from what has been logged.
>> It appears that the RNG is not thread safe on some platforms, which
>> means a bit of rework in a few areas. I've added this:
>>
>> https://github.com/libbitcoin/libbitcoin-network/issues/72
>>
>> e
>>
>>> On 10/21/2016 07:39 AM, Police Terror wrote:
>>> However this code works fine:
>>>
>>> #include <random>
>>>
>>> uint64_t pseudo_random()
>>> {
>>>    std::random_device device;
>>>    std::uniform_int_distribution<uint64_t> distribution;
>>>    return distribution(device);
>>> }

>>>
>>> int main()
>>> {
>>>    pseudo_random();
>>>    return 0;
>>> }

>>>
>>> Police Terror:
>>>> I'm using the current master branch to sync with testnet, but I'm
>>>> getting this error:
>>>>
>>>> ...
>>>> 14:15:56.657549 WARNING [server] Failed to connect secure notification
>>>> worker: operation failed
>>>> 14:15:56.756083 WARNING [server] Failed to connect secure notification
>>>> worker: operation failed
>>>> terminate called after throwing an instance of 'std::runtime_error'
>>>> what(): random_device::random_device(const std::string&)
>>>> 14:15:57.415901 INFO [server] Stop signal detected (code: 6).
>>>> Aborted (core dumped)
>>>>
>>>> Here's what debug.log is showing:
>>>>
>>>> 14:15:57.415478 DEBUG [network] Failure connecting outbound: operation
>>>> failed
>>>> 14:15:57.415501 DEBUG [network] Failure connecting outbound: operation
>>>> failed
>>>> 14:15:57.415570 DEBUG [node] Redundant block
>>>> [0000000057bd296621bc2f314e3594c412a0cd9e94f1083554c3184160612450] from
>>>> [177.189.250.198:18333]
>>>> 14:15:57.415605 DEBUG [network] Connecting to [121.40.72.188:18333]
>>>> 14:15:57.415703 DEBUG [network] Valid block payload from
>>>> [177.189.250.198:18333] (207 bytes)
>>>> 14:15:57.415757 DEBUG [network] Connecting to [212.93.226.185:18333]
>>>> 14:15:57.415816 DEBUG [network] Connecting to [2.55.186.124:18333]
>>>> 14:15:57.415901 INFO [server] Stop signal detected (code: 6).
>>>> 14:15:57.415937 DEBUG [node] Redundant block
>>>> [000000008a675b534ea86b312f29c9fdcce7b7b07ca1879c144b8e20215ac201] from
>>>> [177.189.250.198:18333]
>>>> 14:15:57.416008 DEBUG [network] Valid block payload from
>>>> [177.189.250.198:18333] (207 bytes)
>>>> g
>>>>
>>>> I've attached the .cfg file I'm using.
>>>>
>>>> Looking at libbitcoin/src/utility/random.cpp, I see that
>>>> nonzero_pseudo_random() is throwing. Why isn't that an assert instead?
>>>>
>>>> https://github.com/libbitcoin/libbitcoin/blob/master/src/utility/random.cpp#L46
>>>>
>>>> Here is the backtrace:
>>>>
>>>> #9  libbitcoin::pseudo_random () at src/utility/random.cpp:39
>>>> #10 0x00007ffff5a3d48d in libbitcoin::network::hosts::fetch
>>>> (this=this@entry=0x657310,
>>>>    out=...) at src/collections/hosts.cpp:76
>>>> #11 0x00007ffff5a27e7a in
>>>> libbitcoin::network::p2p::fetch_address(std::function<void
>>>> (std::error_code const&, libbitcoin::message::network_address const&)>)
>>>> const (this=0x656ad0,
>>>>    handler=...) at src/p2p.cpp:430
>>>> #12 0x00007ffff5a5ae5f in
>>>> libbitcoin::network::session::fetch_address(std::function<void
>>>> (std::error_code const&, libbitcoin::config::authority const&)>) const (
>>>>    this=this@entry=0x7fff280d6330, handler=...) at
>>>> src/sessions/session.cpp:83
>>>> #13 0x00007ffff5a6064e in
>>>> libbitcoin::network::session_batch::new_connect(std::shared_ptr<libbitcoin::network::connector>,
>>>> std::function<void (std::error_code const&,
>>>> std::shared_ptr<libbitcoin::network::channel>)>)
>>>> (this=this@entry=0x7fff280d6330,
>>>>    connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760, handler=...)
>>>>    at src/sessions/session_batch.cpp:70
>>>> #14 0x00007ffff5a60b53 in
>>>> libbitcoin::network::session_batch::connect(std::shared_ptr<libbitcoin::network::connector>,
>>>> std::function<void (std::error_code const&,
>>>> std::shared_ptr<libbitcoin::network::channel>)>) (this=0x7fff280d6330,
>>>>    connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760, handler=...)
>>>>    at src/sessions/session_batch.cpp:56
>>>> #15 0x00007ffff5a6f335 in
>>>> libbitcoin::network::session_outbound::new_connection (
>>>>    this=this@entry=0x7fff280d6330,
>>>>    connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760)
>>>>    at src/sessions/session_outbound.cpp:87
>>>> #16 0x00007ffff5a6f7d1 in
>>>> libbitcoin::network::session_outbound::handle_connect (
>>>>    this=0x7fff280d6330, ec=..., channel=...,
>>>>    connect=std::shared_ptr (count 115, weak 1) 0x7ffef03f5760)
>>>>    at src/sessions/session_outbound.cpp:97

>>>>
>>>>
>>>>
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