Module rr_resolve

Description
Data Types
Function Index
Function Details

replica update resolve module Updates local and/or remote Key-Value-Pairs (kv-pair) Modes: 1) key_upd: updates local db entries with received kvv-list, if received kv is newer 2) key_upd_send: creates kvv-list out of a given key-list and sends it to dest 3) interval_upd_my: tries to resolve items from the given interval by requesting data from replica nodes Options: 1) Feedback: sends data ids to Node (A) which are outdated at (A) 2) Send_Stats: sends resolution stats to given pid Usage: rrepair process provides API for resolve requests.

Version: $Id$

Behaviours: gen_component.

Authors: Maik Lange (malange@informatik.hu-berlin.de).

client_version() = non_neg_integer()

kvv_list()

kvv_list() = 
    [{rt_chord:key(), db_dht:value(), client_version()}]

message()

message() = 
    {start, operation(), options(), StartTag :: atom()} |
    {get_entries_response, db_dht:db_as_list()} |
    {get_state_response, intervals:interval()} |
    {update_key_entries_ack,
     [{db_entry:entry_ex(),
       Exists :: boolean(),
       Done :: boolean()}]} |
    {'DOWN',
     MonitorRef :: reference(),
     process,
     Owner :: pid(),
     Info :: any()}

operation()

operation() = 
    {103,
     KvvListInAnyQ :: kvv_list(),
     ReqKeys :: [rt_chord:key()]} |
    {key_upd_send,
     DestPid :: comm:mypid(),
     SendKeys :: [rt_chord:key()],
     ReqKeys :: [rt_chord:key()]} |
    {interval_upd_my, intervals:interval()}

option()

option() = 
    {feedback_request, comm:mypid()} | {from_my_node, 0 | 1}

options()

options() = [option()]

state()

state() = 
    #rr_resolve_state{ownerPid = pid(),
                      operation = undefined | operation(),
                      my_range = undefined | intervals:interval(),
                      fb_dest_pid = undefined | comm:mypid(),
                      fb_send_kvv = kvv_list(),
                      fb_had_kvv_req = boolean(),
                      fb_send_kvv_req = kvv_list(),
                      other_kv_tree = mymaps:mymap(),
                      stats = stats(),
                      from_my_node = 0 | 1}

stats()

stats() = 
    #resolve_stats{session_id = rrepair:session_id() | null,
                   diff_size = non_neg_integer(),
                   regen_count = non_neg_integer(),
                   update_count = non_neg_integer(),
                   upd_fail_count = non_neg_integer(),
                   regen_fail_count = non_neg_integer()}

Function Index

get_stats_session_id/1
init/1
merge_stats/2	Merges two stats records with an identical session_id (otherwise error will be raised).
merge_stats_feeder/2
on/2
print_resolve_stats/1
start/1
start_gen_component/5

Function Details

start_gen_component/5

start_gen_component(Module :: module(),
                    Handler :: gen_component:handler(),
                    Args :: term(),
                    Options :: [gen_component:option()],
                    Self :: pid()) ->
                       no_return() | ok

on/2

on(Msg :: message(), State :: state()) -> state() | kill

get_stats_session_id/1

get_stats_session_id(Stats :: stats()) ->
                        rrepair:session_id() | null

merge_stats_feeder/2

merge_stats_feeder(A :: stats(), B :: stats()) ->
                      {stats(), stats()}

merge_stats/2

merge_stats(Resolve_stats :: stats(), X2 :: stats()) -> stats()

Merges two stats records with an identical session_id (otherwise error will be raised).

print_resolve_stats/1

print_resolve_stats(Stats :: stats()) -> [any()]

init/1

init(State :: state()) -> state()

start/1

start(SessionId :: rrepair:session_id() | null) ->
         {ok, MyPid :: pid()}

Generated by EDoc, Apr 22 2017, 16:02:52.