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Seed randomnes at Actor startup

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This commit is contained in:
martinsumner 2017-03-06 21:35:02 +00:00
parent 32cdf26ffb
commit 9ad6969b0d
4 changed files with 9 additions and 5 deletions
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4
src/leveled_bookie.erl
View file

@ -358,6 +358,8 @@ book_destroy(Pid) ->
%%%============================================================================
init([Opts]) ->
SW = os:timestamp(),
random:seed(erlang:phash2(self()), element(2, SW), element(3, SW)),
case get_opt(snapshot_bookie, Opts) of
undefined ->
% Start from file not snapshot
@ -635,7 +637,7 @@ snapshot_store(LedgerCache0, Penciller, Inker, SnapType, Query) ->
snapshot_query = Query,
bookies_mem = BookiesMem},
{ok, LedgerSnapshot} = leveled_penciller:pcl_start(PCLopts),
leveled_log:log_randomtimer("B0004", [cache_size(LedgerCache)], SW, 0.1),
leveled_log:log_randomtimer("B0004", [cache_size(LedgerCache)], SW, 0.02),
case SnapType of
store ->
InkerOpts = #inker_options{start_snapshot=true,

2
src/leveled_inker.erl
View file

@ -222,6 +222,8 @@ ink_print_manifest(Pid) ->
%%%============================================================================
init([InkerOpts]) ->
SW = os:timestamp(),
random:seed(erlang:phash2(self()), element(2, SW), element(3, SW)),
case {InkerOpts#inker_options.root_path,
InkerOpts#inker_options.start_snapshot} of
{undefined, true} ->

4
src/leveled_log.erl
View file

@ -353,9 +353,7 @@ log_timer(LogReference, Subs, StartTime) ->
end.
log_randomtimer(LogReference, Subs, StartTime, RandomProb) ->
{R, _S} = random:uniform_s({erlang:phash2(self()),
element(2, StartTime),
element(3, StartTime)}),
R = random:uniform(),
case R < RandomProb of
true ->
log_timer(LogReference, Subs, StartTime);

4
src/leveled_penciller.erl
View file

@ -321,6 +321,8 @@ pcl_doom(Pid) ->
%%%============================================================================
init([PCLopts]) ->
SW = os:timestamp(),
random:seed(erlang:phash2(self()), element(2, SW), element(3, SW)),
case {PCLopts#penciller_options.root_path,
PCLopts#penciller_options.start_snapshot,
PCLopts#penciller_options.snapshot_query,
@ -405,7 +407,7 @@ handle_call({fetch_keys, StartKey, EndKey, AccFun, InitAcc, MaxKeys},
List ->
List
end,
leveled_log:log_randomtimer("P0037", [length(L0AsList)], SW, 0.1),
leveled_log:log_randomtimer("P0037", [length(L0AsList)], SW, 0.01),
SetupFoldFun =
fun(Level, Acc) ->
Pointers = leveled_pmanifest:range_lookup(State#state.manifest,