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prototype/corfurl/README.old.md

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+Shiny prototype/sandbox of distributed DBMS concepts.
+
+Compile:
+
+    ./rebar get-deps compile
+
+Starting:
+
+    erl -pa ebin deps/*/ebin -s dbms
+
+Things to try:
+
+Prettyprint a record:
+
+    dbms:print_record().
+
+Start some load:
+
+    dbms:loadgen().
+
+Show all the debug messages:
+
+    lager:set_loglevel(lager_console_backend, debug).
+
+Reset the loglevel because your console is flooding:
+
+    lager:set_loglevel(lager_console_backend, info).
+
+Show all the read-repair operations:
+
+    lager:trace_console([{operation, repair}]).
+
+Reset the traces:
+
+    lager:clear_all_traces().
+
+Show all the PUTs against vnode 13:
+
+    lager:trace_console([{operation, put}, {id, 13}]).
+
+Show all the keys being read between 500 and 600:
+
+    lager:trace_console([{operation, get}, {key, '>', 500}, {key, '<', 600}]).
+
+Trace specific GET/PUT operstions:
+
+    dbms:traced_get(Key).
+    dbms:traced_put(Key).
+
+Manually erase a vnode:
+
+    dbms_dynamo:wipe(VnodeID).