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  1. #11
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    Coimbatore
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    Hello,
    I have checked well, in my adapter some times exception only happening. I have handled the exception so there is no issue on that. And I have noticed in browser when rates gets stops. I can confirm LS server is working, adapter is not sending the updates. Please look on this below response of browser developer tool

    var myEnv = lsc;
    var phase = null;
    function setPhase(ph) {
    phase = ph;
    }


    var winPhase = {};
    function setWin(tbl, ph) {
    winPhase[tbl] = ph;
    }


    var clsd = false;
    function c(cod, ph, tbl, its, flds, key, com) {
    LS_window.LS_w(cod, ph, tbl, its, flds, key, com);
    }


    function error(cod, ph, tbl, msg) {
    if (tbl != null) {
    LS_window.LS_l(cod, ph, tbl, msg);
    } else {
    LS_window.LS_l(cod, phase, null, msg);
    }
    }


    function start(sID, addr, kaMs, reqLim, srv, ip) {
    LS_window.LS_e(1, phase, sID, addr, kaMs, reqLim, srv, ip);
    }


    function end(cause) {
    LS_window.LS_e(4, phase, cause);
    }


    function loop(holdMs) {
    LS_window.LS_e(2, phase, holdMs);
    }


    function retry() {
    LS_window.LS_e(3, phase);
    }


    function s0() {}


    function bw(maxBW) {
    LS_window.LS_e(5, phase, maxBW);
    }


    function y(secs) {
    LS_window.LS_s(phase, secs);
    }


    var unchangedSignal = {};
    unchangedSignal.length = -1;
    function convert(b, f) {
    var a, c, d = f, e = [];
    for(a = 0;a < b.length;a++) {
    if(a < f) {
    e[a] = b[a]
    } else {
    if(b[a].charAt) {
    b[a] == '$' ? e[d] = '' : b[a] == '#' ? e[d] = null : (c = b[a].charAt(0), e[d] = c == '$' || c == '#' ? b[a].substring(1) : b[a]), d++
    } else {
    for(c = 0;c < b[a];c++) {
    e[d] = unchangedSignal, d++
    }
    }
    }
    }
    return e;
    }
    function d(tbl) {
    try { LS_window.LS_u(winPhase[tbl], convert(arguments || d.arguments, 2)); } catch(exc) {}
    }
    function z(tbl) {
    LS_window.LS_v(winPhase[tbl], convert(arguments || z.arguments, 2));
    }
    function n(tbl) {
    LS_window.LS_n(winPhase[tbl], arguments || n.arguments);
    }
    function s(tbl) {
    LS_window.LS_s(winPhase[tbl], arguments || s.arguments);
    }
    function r(tbl) {
    LS_window.LS_o(winPhase[tbl], arguments || r.arguments);
    }
    function p() {
    LS_window.LS_u(phase, arguments || p.arguments);
    }
    myEnv.setPhase = setPhase;
    myEnv.setWin = setWin;
    myEnv.c = c;
    myEnv.error = error;
    myEnv.end = end;
    myEnv.start = start;
    myEnv.loop = loop;
    myEnv.retry = retry;
    myEnv.s0 = s0;
    myEnv.bw = bw;
    myEnv.y = y;
    myEnv.convert = convert;
    myEnv.d = d;
    myEnv.z = z;
    myEnv.n = n;
    myEnv.s = s;
    myEnv.r = r;
    myEnv.p = p;
    myEnv.LS_window = LS_window;


    // END OF HEADER


    setPhase(7703);
    start('Scd93873dea9808b9M6deT5148753', null, 5000, 50000);

  2. #12
    Administrator
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    Location
    Milano
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    608
    Hi,

    The javascript you showed is the normal reply to a create session request from the client, so it seems ok from that side, and gives us no clue on the actual cause of the issue.
    You should make sure that your data adapter continues to work regularly and push updates into the Lightstreamer server.
    If we're not sure of that it is difficult to further investigate the problem.
    Maybe, when you catch the exception you just discard the update received from the back-end and don't send anything to the server anymore?

    Regards,
    Giuseppe

  3. #13
    Power Member
    Join Date
    Sep 2013
    Location
    Coimbatore
    Posts
    120
    Hi,
    I have monitor from morning, this was working fine but now suddenly stops the response and showing the below thing when it get stopped

    setPhase(34054);start('S10ac9332c76d9c6eMb7dT53073 67', null, 19000, 50000);bw(0.0);setWin(1,1);setWin(2,1);d(2,7,7,'20 20-10-16 19:37:01');d(2,6,7,'2020-10-16 19:37:01');loop(0);end( );


    After this above response not working, below things only happening




    bind_session
    LS_session=S10ac9332c76d9c6eMb7dT5307367&LS_phase= 34322&LS_cause=loop&LS_polling=true&LS_polling_mil lis=0&LS_idle_millis=19000&LS_container=lsc&


    setPhase(34320);start('S10ac9332c76d9c6eMb7dT53073 67', null, 19000, 50000);bw(0.0);setWin(1,1);setWin(2,1);loop(0);end ( );


    bind_session
    LS_session=S10ac9332c76d9c6eMb7dT5307367&LS_phase= 34322&LS_cause=loop&LS_polling=true&LS_polling_mil lis=0&LS_idle_millis=19000&LS_container=lsc&


    setPhase(34322);start('S10ac9332c76d9c6eMb7dT53073 67', null, 19000, 50000);bw(0.0);setWin(1,1);setWin(2,1);loop(0);end ( );


    setPhase(34266);start('S10ac9332c76d9c6eMb7dT53073 67', null, 19000, 50000);bw(0.0);setWin(1,1);setWin(2,1);d(2,1,'5066 9','50687',6);loop(0);end( );


    bind_session
    LS_session=S10ac9332c76d9c6eMb7dT5307367&LS_phase= 34058&LS_cause=loop&LS_polling=true&LS_polling_mil lis=0&LS_idle_millis=19000&LS_container=lsc&


    setPhase(34056);start('S10ac9332c76d9c6eMb7dT53073 67', null, 19000, 50000);bw(0.0);setWin(1,1);setWin(2,1);d(2,4,'24.4 ','24.44',6);loop(0);end( );


    bind_session
    LS_session=S10ac9332c76d9c6eMb7dT5307367&LS_phase= 34056&LS_cause=loop&LS_polling=true&LS_polling_mil lis=0&LS_idle_millis=19000&LS_container=lsc&

  4. #14
    Administrator
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    Location
    Milano
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    608
    Hi,

    This is strange, because the browser console reports a regular client polling session, and indeed you can see some data received, such as:

    d(2,1,'5066 9','50687',6)

    and

    d(2,4,'24.4 ','24.44',6)

    So actually the client keeps getting something from the Lightstreamer server.
    Maybe that's not all you expect?
    In this case it is necessary to double check the data in the server log to understand what was actually received by the data adapter and routed to the client.
    In this case you need the DEBUG level for these loggers:

    <logger name="LightstreamerLogger.subscriptions" level="DEBUG"/>

    <logger name="LightstreamerLogger.subscriptions.upd" level="DEBUG"/>

    Regards,
    Giuseppe

  5. #15
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    Location
    Coimbatore
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    Hello,
    I'm getting this below log, whether is this any issue, Still I'm having problem some times getting stop on my LS adapter, client not getting any update.
    02-Dec-20 05:45:52,193|INFO |L.requests |SERVER POOLED THREAD 5 |Serving request: /lightstreamer/create_session.js --> LS_op2=create&LS_phase=9901&LS_cause=new.timeout.5 .2.error&LS_polling=true&LS_polling_millis=0&LS_id le_millis=19000&LS_cid=pcYgxn8m8 feOojyA1T661k3g2.pz479h8o&LS_adapter_set=WLSTOCKLI ST_REMOTE&LS_old_session=S104d7bf3fcd22bfbM46fT453 4326&LS_container=lsc& on "Lightstreamer HTTP Server" from 106.201.184.128:37002

    And also some of the times in my command subscription any one or 2 items are not getting update, this data not receiving to client. Is there any way to find out the reason?
    Last edited by rvkvino; December 2nd, 2020 at 11:35 AM.

  6. #16
    Administrator
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    Location
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    608
    Unfortunately, the client error you mentioned (LS_cause=new.timeout.5 .2.error) is not enough to figure out what is going on.
    Indeed, the error means that the client was unable to create the session in the expected time and therefore tries again.
    This scenario can be caused both by client-side problems such as poor network conditions, and server-side problems with severe delays on the server.
    You should check the server log looking for messages like this "Current delay for tasks scheduled on thread pool SERVER is ... seconds".

    About missing updates, still valid my previous reply, with a log configuration good for troubleshooting this kind of issue.

    Regards,
    Giuseppe

  7. #17
    Power Member
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    Location
    Coimbatore
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    Hello,
    I have already added the log configuration as your guidance. And I have downloaded log and searched like Current delay for tasks scheduled on thread pool SERVER but couldn't found anything like this. IS there any other log I need to enable in config.

  8. #18
    Administrator
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    Milano
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    So, with subscriptions loggers at DEBUG level you should be able to follow the entire flow relating to each Item, starting from the subscription request to the adapter and all the updates received by the server.

    Message like this refer to the subscription request forwarded to the Data Adapter: "Subscribing to item <Item> on <AdapterSet.DataAdapter>"

    Then you should looking for the replies of the adapter with messages like these:
    "INCOMING SNAPSHOT for <Item> on <AdapterSet.DataAdapter> --> ... "
    "INCOMING END OF SNAPSHOT NOTIFY for <Item> on <AdapterSet.DataAdapter>"
    "INCOMING DATA for <Item> on <AdapterSet.DataAdapter> ... "


    With that information you can be sure whether the updates are flowing regularly from the adapter to the server. If so, we'll need to focus on the client side.

    Regards,
    Giuseppe

  9. #19
    Power Member
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    Location
    Coimbatore
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    Hello,
    As per your instruction I have checked the log, now my system didn't work got stopped the pushing rates so suddenly checked log. Please check this log I have attached,
    07-Dec-20 04:37:21,331|INFO |L.requests |PUMP POOLED THREAD 1 |Closed session S91a4ff89e6ee459fM656T2306451 with internal cause code: 38/2 (Connection interrupted by client).
    07-Dec-20 04:37:23,715|INFO |streamerMonitorText|Timer-1 |Total threads = 92, Total heap = 62914560 (free = 43428880), Sessions = 3 (max = 13, refused = 0), New sessions = [+2, -2], Connections = 3 (max = 18), New connections = [+4, -4], In-pool threads = 32, Active threads = 0, Available threads = 32, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 4, NIO total selectors = 16, Subscribed items = 12 (for 36 subscriptions), Inbound throughput = 0 updates/s (pre-filtered = 0), Outbound throughput = 0 updates/s (0.73 kbit/s, max = 50.97), Lost updates = 0 (total = 0), Total bytes sent = 26829363, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0
    07-Dec-20 04:37:25,159|INFO |L.requests |SERVER POOLED THREAD 8 |Serving request: /lightstreamer/create_session.js --> LS_op2=create&LS_phase=8801&LS_cause=new.api&LS_po lling=true&LS_polling_millis=0&LS_idle_millis=0&LS _cid=pcYgxn8m8 feOojyA1T661j3g2.pz479h7m&LS_adapter_set=WLSTOCKLI ST_REMOTE&LS_container=lsc& on "Lightstreamer HTTP Server" from 1.22.25.136:58569
    07-Dec-20 04:37:25,160|INFO |L.requests |SERVER POOLED THREAD 8 |Starting new session: S3e7c8f24186ea3cdM656T3725160 (javascript_client 7.0.4 build 1721) on "Lightstreamer HTTP Server" from 1.22.25.136:58569
    07-Dec-20 04:37:25,450|INFO |L.requests |SERVER POOLED THREAD 8 |Serving request: bind_session -> LS_session=S3e7c8f24186ea3cdM656T3725160&LS_phase= 8803&LS_cause=loop1&LS_container=lsc& on "Lightstreamer HTTP Server" from 1.22.25.136:58570
    07-Dec-20 04:37:25,450|INFO |L.requests |SERVER POOLED THREAD 8 |Attaching session: S3e7c8f24186ea3cdM656T3725160 on "Lightstreamer HTTP Server" from 1.22.25.136:58570
    07-Dec-20 04:37:25,455|INFO |L.requests |SERVER POOLED THREAD 8 |Serving request: control -> LS_mode=COMMAND&LS_id=kgnbull&LS_schema=key%20comm and%20desc%20bid%20ask%20high%20low%20order%20deli very&LS_data_adapter=WLQUOTE_ADAPTER&LS_snapshot=t rue&LS_table=1&LS_req_phase=2&LS_win_phase=1&LS_op =add&LS_session=S3e7c8f24186ea3cdM656T3725160& on "Lightstreamer HTTP Server" from 1.22.25.136:58570
    07-Dec-20 04:37:25,455|INFO |L.requests |SERVER POOLED THREAD 8 |Controlling session: S3e7c8f24186ea3cdM656T3725160 on "Lightstreamer HTTP Server" from 1.22.25.136:58570
    07-Dec-20 04:37:25,457|INFO |L.requests |SERVER POOLED THREAD 4 |Controlling session: S3e7c8f24186ea3cdM656T3725160 on "Lightstreamer HTTP Server" from 1.22.25.136:58570
    07-Dec-20 04:37:46,992|INFO |L.requests |PUMP POOLED THREAD 4 |Closed session S3e7c8f24186ea3cdM656T3725160 with internal cause code: 38/2 (Connection interrupted by client).
    07-Dec-20 04:37:51,030|INFO |L.requests |SERVER POOLED THREAD 1 |Starting new session: S2c036881423e770bM656T3751030 (javascript_client 7.0.4 build 1721) on "Lightstreamer HTTP Server" from 1.22.25.136:58610
    07-Dec-20 04:37:51,992|DEBUG|L.subscriptions |SERVER POOLED THREAD 4 |Unsubscribing from item kgnbull on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:37:51,992|DEBUG|L.subscriptions |SERVER POOLED THREAD 1 |Unsubscribing from item Marketstatus-kgnbull on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:37:56,468|INFO |L.requests |SERVER POOLED THREAD 1 |Serving request: /lightstreamer/bind_session.js --> LS_session=S2c036881423e770bM656T3751030&LS_phase= 6104&LS_cause=ws.error.failure.wsc.unknown&LS_cont ent_length=4000000&LS_container=lsc& on "Lightstreamer HTTP Server" from 1.22.25.136:58610
    07-Dec-20 04:37:56,468|INFO |L.requests |SERVER POOLED THREAD 1 |Attaching session: S2c036881423e770bM656T3751030 on "Lightstreamer HTTP Server" from 1.22.25.136:58610
    07-Dec-20 04:37:56,796|INFO |L.requests |SERVER POOLED THREAD 4 |Serving request: /lightstreamer/control.js --> LS_mode=COMMAND&LS_id=kgnbull&LS_schema=key%20comm and%20desc%20bid%20ask%20high%20low%20order%20deli very&LS_data_adapter=WLQUOTE_ADAPTER&LS_snapshot=t rue&LS_table=1&LS_req_phase=2&LS_win_phase=1&LS_op =add&LS_unique=1&LS_session=S2c036881423e770bM656T 3751030& on "Lightstreamer HTTP Server" from 1.22.25.136:58615
    07-Dec-20 04:37:56,797|INFO |L.requests |SERVER POOLED THREAD 4 |Controlling session: S2c036881423e770bM656T3751030 on "Lightstreamer HTTP Server" from 1.22.25.136:58615
    07-Dec-20 04:37:56,798|DEBUG|L.subscriptions |SERVER POOLED THREAD 1 |Subscribing to item kgnbull on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:37:57,105|DEBUG|L.subscriptions |SERVER POOLED THREAD 4 |Subscribing to item Marketstatus-kgnbull on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:38:02,614|INFO |L.requests |SERVER POOLED THREAD 1 |Serving request: /lightstreamer/control.js --> LS_op=destroy&LS_session=S84a38836513b0243M656T275 6818&LS_cause=new.timeout.10.1&LS_unique=84& on "Lightstreamer HTTP Server" from 169.149.227.120:35294
    07-Dec-20 04:38:02,618|INFO |L.requests |SERVER POOLED THREAD 1 |Serving request: /lightstreamer/create_session.js --> LS_op2=create&LS_phase=42506&LS_cause=create.timeo ut&LS_polling=true&LS_polling_millis=0&LS_idle_mil lis=0&LS_cid=pcYgxn8m8 feOojyA1T661k3g2.pz479h8o&LS_adapter_set=WLSTOCKLI ST_REMOTE&LS_container=lsc& on "Lightstreamer HTTP Server" from 169.149.203.46:35296
    07-Dec-20 04:38:02,622|INFO |L.requests |SERVER POOLED THREAD 1 |Starting new session: S10bbf993d030c7feM656T3802622 (javascript_client 7.0.5 build 1722) on "Lightstreamer HTTP Server" from 169.149.203.46:35296
    07-Dec-20 04:38:03,273|INFO |L.requests |SERVER POOLED THREAD 1 |Serving request: /lightstreamer/bind_session.js --> LS_session=S10bbf993d030c7feM656T3802622&LS_phase= 42508&LS_cause=loop1&LS_keepalive_millis=5000&LS_c ontent_length=4000000&LS_container=lsc& on "Lightstreamer HTTP Server" from 169.149.203.46:35296
    07-Dec-20 04:38:03,273|INFO |L.requests |SERVER POOLED THREAD 1 |Attaching session: S10bbf993d030c7feM656T3802622 on "Lightstreamer HTTP Server" from 169.149.203.46:35296
    07-Dec-20 04:38:03,279|INFO |L.requests |SERVER POOLED THREAD 1 |Serving request: /lightstreamer/control.js --> LS_mode=MERGE&LS_id=GOLDFEB%20MGOLD-C%20MGOLD-F%20SILVERMAR%20SILVER-F%20MSILVER-C%20MSILVER-F%20SPOT-GOLD%20SPOT-SILVER%20SPOT-INR&LS_schema=desc%20bid%20ask%20high%20low%20ltp& LS_data_adapter=WLQUOTE_ADAPTER&LS_snapshot=true&L S_table=56&LS_req_phase=57&LS_win_phase=57&LS_op=a dd&LS_unique=85&LS_session=S10bbf993d030c7feM656T3 802622& on "Lightstreamer HTTP Server" from 169.149.227.120:35294
    07-Dec-20 04:38:03,279|INFO |L.requests |SERVER POOLED THREAD 1 |Controlling session: S10bbf993d030c7feM656T3802622 on "Lightstreamer HTTP Server" from 169.149.227.120:35294
    07-Dec-20 04:38:03,280|DEBUG|L.subscriptions |SERVER POOLED THREAD 3 |Subscribing to item MGOLD-F on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:38:03,280|DEBUG|L.subscriptions |SERVER POOLED THREAD 8 |Subscribing to item MSILVER-C on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:38:03,280|DEBUG|L.subscriptions |SERVER POOLED THREAD 4 |Subscribing to item SILVER-F on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:38:03,659|INFO |L.requests |SERVER POOLED THREAD 4 |Serving request: /lightstreamer/control.js --> LS_mode=MERGE&LS_id=GOLDFEB%20MGOLD-C%20MGOLD-F%20SILVERMAR%20SILVER-F%20MSILVER-C%20MSILVER-F%20SPOT-GOLD%20SPOT-SILVER%20SPOT-INR&LS_schema=desc%20bid%20ask%20high%20low%20ltp& LS_data_adapter=WLQUOTE_ADAPTER&LS_snapshot=true&L S_table=57&LS_req_phase=58&LS_win_phase=57&LS_op=a dd&LS_unique=86&LS_session=S10bbf993d030c7feM656T3 802622& on "Lightstreamer HTTP Server" from 169.149.227.120:35294
    07-Dec-20 04:38:03,660|INFO |L.requests |SERVER POOLED THREAD 4 |Controlling session: S10bbf993d030c7feM656T3802622 on "Lightstreamer HTTP Server" from 169.149.227.120:35294
    07-Dec-20 04:38:11,243|INFO |L.requests |PUMP POOLED THREAD 4 |Closed session S10bbf993d030c7feM656T3802622 with internal cause code: 38/5 (Connection interrupted by client).
    07-Dec-20 04:38:16,243|DEBUG|L.subscriptions |SERVER POOLED THREAD 3 |Unsubscribing from item MGOLD-F on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:38:16,244|DEBUG|L.subscriptions |SERVER POOLED THREAD 3 |Unsubscribing from item SILVER-F on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:38:16,244|DEBUG|L.subscriptions |SERVER POOLED THREAD 5 |Unsubscribing from item MSILVER-C on WLSTOCKLIST_REMOTE.WLQUOTE_ADAPTER
    07-Dec-20 04:39:23,762|INFO |streamerMonitorText|Timer-1 |Total threads = 93, Total heap = 62914560 (free = 41810672), Sessions = 4 (max = 13, refused = 0), New sessions = [+3, -2], Connections = 4 (max = 18), New connections = [+10, -9], In-pool threads = 32, Active threads = 0, Available threads = 32, Queued tasks = 0, Pool queue wait = 0, NIO write queue = 0, NIO write queue wait = 0, NIO write selectors = 4, NIO total selectors = 16, Subscribed items = 12 (for 36 subscriptions), Inbound throughput = 0 updates/s (pre-filtered = 0), Outbound throughput = 0 updates/s (0.98 kbit/s, max = 50.97), Lost updates = 0 (total = 0), Total bytes sent = 26839721, Client messages throughput = 0 msgs/s (0 kbit/s, max = 0), Total messages handled = 0, Extra sleep = 0, Notify delay = 0

    I have uploaded full log file in this link http://post.nammauzhavan.com/logs/Lightstreamer.log

  10. #20
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    As you can see from the log, the messages reporting received updates from the Data Adapter ("INCOMING DATA for ... ") disappear completely from 03:50:01,925; but the rest of the server activity continues regularly.
    New client sessions are processed properly, as well as subscriptions and unsubscription requests; just no new data from the Data Adapter were received.

    Please you should double check your Data Adapter code and your back-end source of the data to try to figure out where could be addressed the stoppage.

    Regards,
    Giuseppe

 

 

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