[BETA] Dark Exchange: a 100% decentralized p2p exchange

[SlipperySlope]

I just launched i2p and Dark Exchange that I downloaded yesterday, but I see only two peers.

[SmokeAndMirrors]

I haven't found any peers since I downloaded the exchange.

[morpheus]

I've just uploaded a new Beta: https://github.com/macourtney/Dark-Exchange/downloads

This should fix some of the peering issues. However, I2P seems to be very flaky and it may take a few tries to download all of the peers.

After you download and untar the new beta, you'll have to copy the data directory from your old install into the new one. Unless you don't care to keep your old data.

I'm sorry for all of the trouble. Unfortunately, it may take a while to work out all of the bugs with the system. Thank you for being patient and helping me find and resolve bugs.

[SlipperySlope]

Hi,
I just downloaded and launched beta 2.  I needed to launch it twice before it found 7 peers.

However, before I tried searching, I received the following exceptions ...

Code:

ERROR [darkexchange.uncaught-exception-handler]: Uncaught Exception:
java.lang.RuntimeException: java.lang.RuntimeException: org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob: 4"" [90028-157]"; "lob: null table: -1 id: 4" [90031-157]
	at clojure.lang.AFn.run(AFn.java:28)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.RuntimeException: org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob: 4"" [90028-157]"; "lob: null table: -1 id: 4" [90031-157]
	at clojure.lang.LazySeq.sval(LazySeq.java:47)
	at clojure.lang.LazySeq.seq(LazySeq.java:56)
	at clojure.lang.RT.seq(RT.java:450)
	at clojure.core$seq.invoke(core.clj:122)
	at clojure.core$dorun.invoke(core.clj:2450)
	at clojure.core$doall.invoke(core.clj:2465)
	at clj_record.core$find_by_sql$func__4289__auto____4305$fn__4306.invoke(core.clj:73)
	at clojure.contrib.sql.internal$with_query_results_STAR_.invoke(internal.clj:194)
	at clj_record.core$find_by_sql$func__4289__auto____4305.invoke(core.clj:72)
	at clj_record.core$find_by_sql$fn__4309.invoke(core.clj:71)
	at clojure.contrib.sql.internal$with_connection_STAR_.invoke(internal.clj:105)
	at clj_record.core$find_by_sql.invoke(core.clj:71)
	at clj_record.core$find_records.invoke(core.clj:85)
	at clj_record.core$find_record.invoke(core.clj:91)
	at darkexchange.model.peer$find_record.invoke(peer.clj:41)
	at darkexchange.model.peer$find_peer.invoke(peer.clj:67)
	at darkexchange.model.identity$update_identity_peer.invoke(identity.clj:53)
	at darkexchange.model.identity$update_identity.invoke(identity.clj:59)
	at darkexchange.model.identity$add_or_update_identity.invoke(identity.clj:64)
	at darkexchange.model.interceptors.identity_interceptor$identity_updater.invoke(identity_interceptor.clj:9)
	at darkexchange.model.interceptors.identity_interceptor$client_interceptor$fn__6773.invoke(identity_interceptor.clj:18)
	at clojure.lang.AFn.run(AFn.java:24)
	... 1 more
Caused by: org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob: 4"" [90028-157]"; "lob: null table: -1 id: 4" [90031-157]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:327)
	at org.h2.message.DbException.get(DbException.java:156)
	at org.h2.message.DbException.convertIOException(DbException.java:313)
	at org.h2.value.ValueLobDb.getInputStream(ValueLobDb.java:283)
	at org.h2.value.ValueLobDb.getReader(ValueLobDb.java:267)
	at org.h2.jdbc.JdbcClob.getCharacterStream(JdbcClob.java:112)
	at sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:90)
	at clojure.lang.Reflector.invokeNoArgInstanceMember(Reflector.java:265)
	at darkexchange.model.base$clob_string.invoke(base.clj:9)
	at darkexchange.model.base$load_clob.invoke(base.clj:13)
	at darkexchange.model.base$clean_clob_key.invoke(base.clj:22)
	at darkexchange.model.peer$peer_clean_up.invoke(peer.clj:39)
	at clj_record.callbacks$run_callbacks$fn__4255.invoke(callbacks.clj:17)
	at clojure.core$r.invoke(core.clj:799)
	at clj_record.callbacks$run_callbacks.doInvoke(callbacks.clj:17)
	at clojure.lang.RestFn.invoke(RestFn.java:442)
	at clj_record.callbacks$after_load$fn__4262.invoke(callbacks.clj:32)
	at clojure.core$map$fn__3699.invoke(core.clj:2096)
	at clojure.lang.LazySeq.sval(LazySeq.java:42)
	... 22 more
Caused by: java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: "Missing lob: 4" [90028-157]
	at org.h2.message.DbException.convertToIOException(DbException.java:346)
	at org.h2.store.LobStorage.getInputStream(LobStorage.java:449)
	at org.h2.value.ValueLobDb.getInputStream(ValueLobDb.java:281)
	... 40 more
Caused by: org.h2.jdbc.JdbcSQLException: IO Exception: "Missing lob: 4" [90028-157]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:327)
	at org.h2.message.DbException.get(DbException.java:167)
	at org.h2.message.DbException.get(DbException.java:144)
	at org.h2.store.LobStorage.getInputStream(LobStorage.java:444)
	... 41 more
ERROR [darkexchange.uncaught-exception-handler]: Uncaught Exception:
java.lang.RuntimeException: java.lang.RuntimeException: org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob: 5"" [90028-157]"; "lob: null table: -1 id: 5" [90031-157]
	at clojure.lang.AFn.run(AFn.java:28)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.RuntimeException: org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob: 5"" [90028-157]"; "lob: null table: -1 id: 5" [90031-157]
	at clojure.lang.LazySeq.sval(LazySeq.java:47)
	at clojure.lang.LazySeq.seq(LazySeq.java:56)
	at clojure.lang.RT.seq(RT.java:450)
	at clojure.core$seq.invoke(core.clj:122)
	at clojure.core$dorun.invoke(core.clj:2450)
	at clojure.core$doall.invoke(core.clj:2465)
	at clj_record.core$find_by_sql$func__4289__auto____4305$fn__4306.invoke(core.clj:73)
	at clojure.contrib.sql.internal$with_query_results_STAR_.invoke(internal.clj:194)
	at clj_record.core$find_by_sql$func__4289__auto____4305.invoke(core.clj:72)
	at clj_record.core$find_by_sql$fn__4309.invoke(core.clj:71)
	at clojure.contrib.sql.internal$with_connection_STAR_.invoke(internal.clj:105)
	at clj_record.core$find_by_sql.invoke(core.clj:71)
	at clj_record.core$find_records.invoke(core.clj:85)
	at clj_record.core$find_record.invoke(core.clj:91)
	at darkexchange.model.peer$find_record.invoke(peer.clj:41)
	at darkexchange.model.peer$find_peer.invoke(peer.clj:67)
	at darkexchange.model.identity$add_identity.invoke(identity.clj:45)
	at darkexchange.model.identity$add_or_update_identity.invoke(identity.clj:65)
	at darkexchange.model.interceptors.identity_interceptor$identity_updater.invoke(identity_interceptor.clj:9)
	at darkexchange.model.interceptors.identity_interceptor$client_interceptor$fn__6773.invoke(identity_interceptor.clj:18)
	at clojure.lang.AFn.run(AFn.java:24)
	... 1 more
Caused by: org.h2.jdbc.JdbcSQLException: IO Exception: "java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: ""Missing lob: 5"" [90028-157]"; "lob: null table: -1 id: 5" [90031-157]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:327)
	at org.h2.message.DbException.get(DbException.java:156)
	at org.h2.message.DbException.convertIOException(DbException.java:313)
	at org.h2.value.ValueLobDb.getInputStream(ValueLobDb.java:283)
	at org.h2.value.ValueLobDb.getReader(ValueLobDb.java:267)
	at org.h2.jdbc.JdbcClob.getCharacterStream(JdbcClob.java:112)
	at sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:90)
	at clojure.lang.Reflector.invokeNoArgInstanceMember(Reflector.java:265)
	at darkexchange.model.base$clob_string.invoke(base.clj:9)
	at darkexchange.model.base$load_clob.invoke(base.clj:13)
	at darkexchange.model.base$clean_clob_key.invoke(base.clj:22)
	at darkexchange.model.peer$peer_clean_up.invoke(peer.clj:39)
	at clj_record.callbacks$run_callbacks$fn__4255.invoke(callbacks.clj:17)
	at clojure.core$r.invoke(core.clj:799)
	at clj_record.callbacks$run_callbacks.doInvoke(callbacks.clj:17)
	at clojure.lang.RestFn.invoke(RestFn.java:442)
	at clj_record.callbacks$after_load$fn__4262.invoke(callbacks.clj:32)
	at clojure.core$map$fn__3699.invoke(core.clj:2096)
	at clojure.lang.LazySeq.sval(LazySeq.java:42)
	... 21 more
Caused by: java.io.IOException: org.h2.jdbc.JdbcSQLException: IO Exception: "Missing lob: 5" [90028-157]
	at org.h2.message.DbException.convertToIOException(DbException.java:346)
	at org.h2.store.LobStorage.getInputStream(LobStorage.java:449)
	at org.h2.value.ValueLobDb.getInputStream(ValueLobDb.java:281)
	... 39 more
Caused by: org.h2.jdbc.JdbcSQLException: IO Exception: "Missing lob: 5" [90028-157]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:327)
	at org.h2.message.DbException.get(DbException.java:167)
	at org.h2.message.DbException.get(DbException.java:144)
	at org.h2.store.LobStorage.getInputStream(LobStorage.java:444)
	... 40 more

By the way, how is the Dark Exchange client visible in the i2p dashboard - under local destinations?

[morpheus]

Hi,
I just downloaded and launched beta 2.  I needed to launch it twice before it found 7 peers.

However, before I tried searching, I received the following exceptions ...
...

Darn, I'll have to take a look at it tomorrow.

I testing searching several times. I wonder what's going on.

[tanerlorn]

Morph,

What is your address? I'd like to donate to you for your time (and I think others may as well)

[SlipperySlope]

I launched Dark Exchange beta 2 again and immediately searched.  The above reported exception did not occur again.

I Have Bitcoin To Send By Bitcoin Transfer
I Want United States of America, Dollars Sent By Dwolla

and it found two offers OK.

I selected the first one and clicked the View button and reasonable details were displayed.  I canceled the transaction because I am not actually prepared for a real transaction.

So far so good!

[morpheus]

Morph,

What is your address? I'd like to donate to you for your time (and I think others may as well)

I posted a donation bitcoin address in both the README file: https://github.com/macourtney/Dark-Exchange/blob/master/README

And on the wiki: https://github.com/macourtney/Dark-Exchange/wiki

Thanks.

[morpheus]

...

just an idea:
Score users would be nice. More trades and more volume with diferent users, more score, registration date to make more scores too (or not?). If a "bad guy" appears, just put negative scores. It not will be the best way, but make some reputation.

I've already thought of a scoring based system, but I haven't had time to implement it yet. My idea is to include a scoring system where you would rate each person/identity on a percent trust/distrust scale. Everyone would start out at zero. As you complete trades with someone, you can increase your trust in them by raising the scale to a positive percentage. If the trade goes bad, you can decrease the scale into the negative territory.

Then, all of the trust ratings from the people you already trust would be combined with how much they trust someone else to determine your expected trust in an unknown party. I have an idea how to do that, but I don't want to go into detail here.

[morpheus]

...
By the way, how is the Dark Exchange client visible in the i2p dashboard - under local destinations?

I don't see Dark Exchange in the i2p dashboard, but it could be picking up the destination and listing it under local destinations.

Also, I've created an issue for your exception, but I don't have a plan to fix it unless it shows up more often. However, I want an issue to make sure it's tracked.

[morpheus]

I launched Dark Exchange beta 2 again and immediately searched.  The above reported exception did not occur again.

I Have Bitcoin To Send By Bitcoin Transfer
I Want United States of America, Dollars Sent By Dwolla

and it found two offers OK.

I selected the first one and clicked the View button and reasonable details were displayed.  I canceled the transaction because I am not actually prepared for a real transaction.

So far so good!

I seem to be the only one with offers right now.

I will stand by my offers. I'm eagerly awaiting to make the first real trade on the exchange.

I'm glad to hear someone else got Dark Exchange working besides me. I'm going to start creating issues to track bugs and change requests. After playing with it a little, what obvious things do you think Dark Exchange needs?

[Ryland R. Taylor-Almanza]

I launched Dark Exchange beta 2 again and immediately searched.  The above reported exception did not occur again.

I Have Bitcoin To Send By Bitcoin Transfer
I Want United States of America, Dollars Sent By Dwolla

and it found two offers OK.

I selected the first one and clicked the View button and reasonable details were displayed.  I canceled the transaction because I am not actually prepared for a real transaction.

So far so good!

I seem to be the only one with offers right now.

I will stand by my offers. I'm eagerly awaiting to make the first real trade on the exchange.

I'm glad to hear someone else got Dark Exchange working besides me. I'm going to start creating issues to track bugs and change requests. After playing with it a little, what obvious things do you think Dark Exchange needs?

You have offers right now? I've been running this for a few hours, and no offers have shown up except for mine.

EDIT: Maybe post this in project development as well?

[SmokeAndMirrors]

Seeing as how I'm still having problems being automatically connected to peers, my destination address is:

MQX7kulCMKy9hu-aE-zvCL9o3qPKnFMQGJR4rmLBr~LUIhSVjWyZNkz8KyJsSbQ60Q7~q4HFBa3sVxoBASOg-qLpZWv17AsfYpd6GWbYePmsXBLPvBBfZwG3xbGvnYgXsSMsx9~FZTX8KL8hfzkKAUS1a3ekGSeZTPGrpLkNn1occ0TvkzWuPCOkxYVgvgD0eNijXPaco7BPRDZjwmoAcDBwFlQ4AJZ3wWVPXawExYWcp0WuXVmc7h7FSnZNWp4EhKZq8Lt0tN23WnVGtErFfj8xgUP2UAneTWgSyr3sGlv87cNenvB6G4C25CBkAV-u7XDfRwYOvSSVy48iZzyaWEqMubvo7FidsPk49aBFFQC7VaUUZ3pGgKS2LlwDuj0Xj-kzPtjHnb~rNsOK25CAAcS3iYKL5VI-Hs~dczTgibQ8Fm4IJQHQaIT~PavxJ7eeNmpP8hdYpRZtQnGxafK1OQv1B6~~4j1IMB~-evRrdg4YkbG6~hQ5hCeut9SISCJEAAAA

If anyone else is having problems or would like some more peers, feel free to add me.

[Ryland R. Taylor-Almanza]

Heres my destination address too:

Code:

0qaLZmzp1xQ5GpGzA7GXRHdmOmCgwFh13Qldw5vr6FPOpfsVilGq74~tmvk~y7cNWDRsopo6wOqJ-dkNNcyR~7cvgR~rBAUdYncxeBUjrBQNv7CNCvKs0mQ~tyBR5vkg2Fv3odLGn0O2LPaRkvl-Lzw-tXljd~xFk-CZoEpLynmm3miinUpjTmDTN6BlAntH3lv1eJa32Q18HonNvLDjE1~sPd7wlvOXzj~TJVIXEXBXKHpjW~ljxKBc8I8siKdhLQ5t83EtH5wqhI5HGpCgnZz72ChiyxwCfwmwH3nsACNUdbBicvsKpYFXSA4Q~deml07yGSW0fZ39nnL6jgPmDjoplldeiZGS70jhC2DYdXqaqZ-KtIXsBi3aIkskRcJsxRpYCax-K3O~oR~Lpxe9PTkPSkWhZh0BdGIqnd0re2fU6ciGH-ucGQRysLY5MeROLE~mA3PJskAbQ4~MMA2~vgO7N7T00e4d423stHIx5wEikzHzH-P6R1ICvD4HSf4jAAAA

[myrkul]

This is excellent.

I'm watching this.

[wegotpickles]

After my last relaunch my peers jumped from 5 to 11! I was starting to worry the 5 of us were the only ones.

My Destination:

Code:

d01K6Fhr2zxazVG7~oVJY8t3J3xDAVGiihv~Uv8-Qauqt9MUwgmhJCX5ThFmq57Q9kV8AR8WEd8Q-MoZjS~nc51imaqw6ND0yBp9HdH5iG~1Ngk~f3BJ-oVdFRuEj~oGZxGUoQpJUKP7qJyEncQI~r9btCGlBzIUmP3WMJtjEwdhtwoBp~Q8PVVBj9u4mHCDbULjUDOLpi2i2uT7ctG0d5~HQsNDpAVAVr4QIsRgyq7lrUaRrcbLTggUw1tQmdR9-6qfjwHkC8a869TVYxCfaVX-5ENtJzrSO1ZGynH2sw7mv33FPLAwSvQAu3AQGY5O7HtmYE-sGlefGwfiv1NuTUXILRSEKB75arzIYCh5MbplEsiYv9ngv2k41WEqLV7Wau9L3VfT8DjMwCoHYNmSh0bUsuT0yI0bNFDul9aRGbE3KdVPS6Ex7qk1wxLl~DT8-2XsJv7ppbG~58Q2B-lDJrL9wtBculKHSYJKNWoczmEooFHPv8v5f9QLIP1IycaIAAAA

[Ryland R. Taylor-Almanza]

Does anyone see my offer, because I can't see anyone else's offers.

[CoinMan]

Watching this thread.

[myrkul]

Blame I2P.

[Ryland R. Taylor-Almanza]

Great idea, but ... why Java

Let's not start a flame war. Every programming language has it's advantages and disadvantages. Also, I2P uses Java, which is probably the main reason.