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Optimize mongodb plugin #6990

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Mar 27, 2019
Merged

Optimize mongodb plugin #6990

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722ac06
Improve for MongoDB sharding
UMU618 Mar 25, 2019
ccd6e53
Attempt to make comment clearer
heifner Mar 27, 2019
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29 changes: 17 additions & 12 deletions plugins/mongo_db_plugin/mongo_db_plugin.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1462,39 +1462,44 @@ void mongo_db_plugin_impl::init() {
}

try {
// MongoDB administrators (to enable sharding) :
// 1. enableSharding database (default to EOS)
// 2. shardCollection: blocks, action_traces, transaction_traces, especially action_traces
// 3. Compound index with shard key (default to _id below), to improve query performance.

// blocks indexes
auto blocks = mongo_conn[db_name][blocks_col];
blocks.create_index( bsoncxx::from_json( R"xxx({ "block_num" : 1 })xxx" ));
blocks.create_index( bsoncxx::from_json( R"xxx({ "block_id" : 1 })xxx" ));
blocks.create_index( bsoncxx::from_json( R"xxx({ "block_num" : 1, "_id" : 1 })xxx" ));
blocks.create_index( bsoncxx::from_json( R"xxx({ "block_id" : 1, "_id" : 1 })xxx" ));

auto block_states = mongo_conn[db_name][block_states_col];
block_states.create_index( bsoncxx::from_json( R"xxx({ "block_num" : 1 })xxx" ));
block_states.create_index( bsoncxx::from_json( R"xxx({ "block_id" : 1 })xxx" ));
block_states.create_index( bsoncxx::from_json( R"xxx({ "block_num" : 1, "_id" : 1 })xxx" ));
block_states.create_index( bsoncxx::from_json( R"xxx({ "block_id" : 1, "_id" : 1 })xxx" ));

// accounts indexes
accounts.create_index( bsoncxx::from_json( R"xxx({ "name" : 1 })xxx" ));
accounts.create_index( bsoncxx::from_json( R"xxx({ "name" : 1, "_id" : 1 })xxx" ));

// transactions indexes
auto trans = mongo_conn[db_name][trans_col];
trans.create_index( bsoncxx::from_json( R"xxx({ "trx_id" : 1 })xxx" ));
trans.create_index( bsoncxx::from_json( R"xxx({ "trx_id" : 1, "_id" : 1 })xxx" ));

auto trans_trace = mongo_conn[db_name][trans_traces_col];
trans_trace.create_index( bsoncxx::from_json( R"xxx({ "id" : 1 })xxx" ));
trans_trace.create_index( bsoncxx::from_json( R"xxx({ "id" : 1, "_id" : 1 })xxx" ));

// action traces indexes
auto action_traces = mongo_conn[db_name][action_traces_col];
action_traces.create_index( bsoncxx::from_json( R"xxx({ "block_num" : 1 })xxx" ));
action_traces.create_index( bsoncxx::from_json( R"xxx({ "block_num" : 1, "_id" : 1 })xxx" ));

// pub_keys indexes
auto pub_keys = mongo_conn[db_name][pub_keys_col];
pub_keys.create_index( bsoncxx::from_json( R"xxx({ "account" : 1, "permission" : 1 })xxx" ));
pub_keys.create_index( bsoncxx::from_json( R"xxx({ "public_key" : 1 })xxx" ));
pub_keys.create_index( bsoncxx::from_json( R"xxx({ "account" : 1, "permission" : 1, "_id" : 1 })xxx" ));
pub_keys.create_index( bsoncxx::from_json( R"xxx({ "public_key" : 1, "_id" : 1 })xxx" ));

// account_controls indexes
auto account_controls = mongo_conn[db_name][account_controls_col];
account_controls.create_index(
bsoncxx::from_json( R"xxx({ "controlled_account" : 1, "controlled_permission" : 1 })xxx" ));
account_controls.create_index( bsoncxx::from_json( R"xxx({ "controlling_account" : 1 })xxx" ));
bsoncxx::from_json( R"xxx({ "controlled_account" : 1, "controlled_permission" : 1, "_id" : 1 })xxx" ));
account_controls.create_index( bsoncxx::from_json( R"xxx({ "controlling_account" : 1, "_id" : 1 })xxx" ));

} catch (...) {
handle_mongo_exception( "create indexes", __LINE__ );
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