andytill

andy.till  ~/work   erl -sname lol -setcookie lol
Erlang/OTP 20 [erts-9.1] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:10] [kernel-poll:false]

Bus error: 10

andy.till  ~/work   erl -sname lol -setcookie lol
Erlang/OTP 20 [erts-9.1] [source] [64-bit] [smp:8:8] [ds:8:8:10] [async-threads:10] [kernel-poll:false]

Eshell V9.1  (abort with ^G)
(lol@ATILL-02)1> Segmentation fault: 11

andytill

Given a process state using the following record, how could we modify one of the record fields?

-record(state, {
          status :: init_in_progress | {init_failed, Reason::term()} | ready,
          qbufs = [] :: [{qbuf_ref(), #qbuf{}}],
          qbuf_serial_id = 0 :: non_neg_integer(),
          total_size = 0 :: non_neg_integer(),
          %% no new queries; accumulation allowed
          soft_watermark :: non_neg_integer(),

andytill

riak-shell(3)>INSERT INTO grouptab3 VALUES('x');
Error (1001): <<"Invalid date/time string">>
riak-shell(4)>INSERT INTO grouptab3 VALUES(NULL);
Error (1003): Invalid data found at row index(es) 1
riak-shell(5)>INSERT INTO grouptab3 VALUES(2.3); 
Error (1003): Invalid data found at row index(es) 1
riak-shell(6)>INSERT INTO grouptab3 VALUES(2.3, 'hi');
Error (1018): too many values in row index(es) 1
riak-shell(7)>SHOW CREATE TABLE grouptab3;
CREATE TABLE grouptab3 (a TIMESTAMP NOT NULL,

andytill

/**
 * A JavaFX controller factory for constructing controllers via Guice DI. To
 * install this in the {@link FXMLLoader}, pass it as a parameter to
 * {@link FXMLLoader#setControllerFactory(Callback)}.
 * <p>
 * Once set, make sure you do <b>not</b> use the static methods on
 * {@link FXMLLoader} when creating your JavaFX node.
 */
class GuiceControllerFactory implements Callback<Class<?>, Object> {

andytill

diff --git a/tests/ts_simple_blob.erl b/tests/ts_simple_blob.erl
index 7235a26..a9fdb42 100644
--- a/tests/ts_simple_blob.erl
+++ b/tests/ts_simple_blob.erl
@@ -52,10 +52,15 @@ confirm() ->
     Expected =
         {ok, {Headers, Data}},
 
-    Cluster = ts_setup:start_cluster(1),
+    lager:info("FREAD OUTPUT ~p", [io:fread("Hi.", "\n")]),

andytill

%%
retry_delayed(Fn, DelayMs, TotalElapsedMs) when is_function(Fn),
                                                is_integer(DelayMs),
                                                is_integer(TotalElapsedMs),
                                                TotalElapsedMs > DelayMs ->
    retry_delayed2(Fn, DelayMs, TotalElapsedMs, ordsets:new()).                                      

retry_delayed2(Fn, DelayMs, TotalElapsedMs1, Errors1) ->

andytill

erl -remsh riak_test@127.0.0.1 -setcookie riak -name debug@127.0.0.1

andytill

Problem: an eunit test was using ?assertMatch over a large datastructure and the output was truncated and impossible to debug. The failure was:

**error:{assertMatch_failed,[{module,riak_kv_qry},
                    {line,428},
                    {expression,"Res"},
                    {pattern,"{ ok , { _ , _ , ExpectedRows } }"},
                    {value,{ok,{[<<"Subquery">>,<<"Coverage Plan">>,
                                 <<"Range Scan Start"...>>,
 &lt;&lt;"Is Start Inc"...&gt;&gt;,&lt;&lt;"Range Sc"...&gt;&gt;,

andytill

Riak TS commands

for node in {1..3}; do ~/riak_ts/dev/dev$node/bin/riak stop; done
for node in {1..3}; do ~/riak_ts/dev/dev$node/bin/riak start; done

Build the cluster

andytill

Please install VirtualBox 5.1.2 or compatible from https://www.virtualbox.org/wiki/Downloads, and Vagrant 1.8.5 or compatible from https://www.vagrantup.com/downloads.html. The virtual machine has been tested with these versions only.

Download the erlyberlydemo.box file from google docs, using the link https://drive.google.com/file/d/0B3ta2LL_LQZyTG8wQy1LRmJWSHM/view?usp=sharing and run the following commands. It assumes the downloaded box file is at ~/Downloads.

vagrant box add erlyberlydemo ~/Downloads/erlyberlydemo.box
mkdir erlyberlydemo
cd erlyberlydemo
vagrant init erlyberlydemo