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Merge pull request #9778 from kjellwinblad/kjell/fix/kafka_atom_leak/EMQX-8739 

fix: atom leak when doing Kafka bridge dry-run
This commit is contained in:
Zaiming (Stone) Shi 2023-01-20 12:49:41 +01:00 committed by GitHub
parent ec5b6204d3 8c52264c41
commit cd093b6b9f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 26 additions and 9 deletions
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35
lib-ee/emqx_ee_bridge/src/kafka/emqx_bridge_impl_kafka_producer.erl
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@ -75,7 +75,16 @@ on_start(InstId, Config) ->
}),
throw(failed_to_start_kafka_client)
end,
WolffProducerConfig = producers_config(BridgeName, ClientId, ProducerConfig),
%% Check if this is a dry run
TestIdStart = string:find(InstId, ?TEST_ID_PREFIX),
IsDryRun =
case TestIdStart of
nomatch ->
false;
_ ->
string:equal(TestIdStart, InstId)
end,
WolffProducerConfig = producers_config(BridgeName, ClientId, ProducerConfig, IsDryRun),
case wolff:ensure_supervised_producers(ClientId, KafkaTopic, WolffProducerConfig) of
{ok, Producers} ->
{ok, #{
@ -241,7 +250,7 @@ ssl(#{enable := true} = SSL) ->
ssl(_) ->
[].
producers_config(BridgeName, ClientId, Input) ->
producers_config(BridgeName, ClientId, Input, IsDryRun) ->
#{
max_batch_bytes := MaxBatchBytes,
compression := Compression,
@ -271,7 +280,7 @@ producers_config(BridgeName, ClientId, Input) ->
BridgeType = kafka,
ResourceID = emqx_bridge_resource:resource_id(BridgeType, BridgeName),
#{
name => make_producer_name(BridgeName),
name => make_producer_name(BridgeName, IsDryRun),
partitioner => partitioner(PartitionStrategy),
partition_count_refresh_interval_seconds => PCntRefreshInterval,
replayq_dir => ReplayqDir,
@ -302,12 +311,20 @@ make_client_id(BridgeName) ->
%% Producer name must be an atom which will be used as a ETS table name for
%% partition worker lookup.
make_producer_name(BridgeName) when is_atom(BridgeName) ->
make_producer_name(atom_to_list(BridgeName));
make_producer_name(BridgeName) ->
%% Woff needs atom for ets table name registration
%% The assumption here is bridge is not often re-created
binary_to_atom(iolist_to_binary(["kafka_producer_", BridgeName])).
make_producer_name(BridgeName, IsDryRun) when is_atom(BridgeName) ->
make_producer_name(atom_to_list(BridgeName), IsDryRun);
make_producer_name(BridgeName, IsDryRun) ->
%% Woff needs an atom for ets table name registration. The assumption here is
%% that bridges with new names are not often created.
case IsDryRun of
true ->
%% It is a dry run and we don't want to leak too many atoms
%% so we use the default producer name instead of creating
%% an unique name.
probing_wolff_producers;
false ->
binary_to_atom(iolist_to_binary(["kafka_producer_", BridgeName]))
end.
with_log_at_error(Fun, Log) ->
try