ETA elektron eta api upa java eta consumer eta c eta consumer example eta c++ c++ elektron eta source directory ert in cloud ssl c ezd reconnect elektron sdk c trcc java api reactor linux elektronsdk eta shared library DACS view callback dictionary MarketFeed batchrequest Service api eta decode batch request resiliency refresh token eikon-sdk idn symbol list groupid unsubscribe error code map millisecond ema eta api status ric rssl rsslfieldlist rsslmap empty elektron sdk - java market_by_price elecktron mrn signals streamid capabilities utilization dictionary reuse esdk build warm standby real-time-data groups Blank_Field corrupt convert millisec rdm real batch service id elektron-direct-feed identify trade performance search vaconsumer t ADS multi-thread failover missing data rtl eta fid number acronym 1.2.0 upa training module login stream trthv2 one-to-many publish rsslstate rsslbuffer gold price limit documentation data model slow exchangelist rtmes secure eta sbe rwf omm snapshot with open stream fields rssl_ret_incomplete_data vc11 solarflaire onload sdk 64 bit mergedtogroup conflation rssl state dictionary in data centers rssl_rc_cet_channel_down_reconnecting cusip conditional compilation rssl_mc_update analytics enum description equity quotes trcc eta login failed concurrent electron api load balance nfd ert in cloud trial market price idn_rdf connect _ms sequence stale upa reactor connect reconnect up ready rsslfieldentry java upa trade hkex timestamp electron bds sink driven source disconnect rssl_mc_status overrun suspect open-source aws message encodeiterator ni provider stress test hint size ssl eta migrate service name edf monitoring symbollist reboot rdm_directory_service_group_id rssl_stream_close dispatch missing documentation rdf-d snapshot price rssl_ret_invalid_data ads encryption group valueadd maximum dictionary for services segfault elektron sdk consumer symbols-by-exchange FID negative ric OMM enum status quotes eta trcc handle group status events 3.4.0l1 building from source version