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  1. #1

    streamer keep disconnecting from clinet

    Hi , streamer client keep disconnecting from client

    client issue

    StreamerPricesScript.js?v=29.111:165 Server status Changed to: STALLED

    11:51:40.237 StreamerPricesScript.js?v=29.111:165 Server status Changed to: DISCONNECTED:TRYING-RECOVERY

    11:51:56.285 mainscript.js?v=29.111:3477 debug GRID_GAINER_SUBSCRIPTION onUnsubscription

    11:51:56.285 mainscript.js?v=29.111:3477 debug GRID_ACTIVE_SUBSCRIPTION onUnsubscription

    11:51:56.286 mainscript.js?v=29.111:3477 debug GRID_LOSER_SUBSCRIPTION onUnsubscription

    11:51:56.286 mainscript.js?v=29.111:3477 debug GRID_GAINER_SUBSCRIPTION onUnsubscription

    11:51:56.286 mainscript.js?v=29.111:3477 debug GRID_ACTIVE_SUBSCRIPTION onUnsubscription

    11:51:56.287 StreamerPricesScript.js?v=29.111:165 Server status Changed to: DISCONNECTED:WILL-RETRY

    11:51:56.290 StreamerPricesScript.js?v=29.111:165 Server status Changed to: CONNECTING

    11:51:56.311 StreamerPricesScript.js?v=29.111:165 Server status Changed to: CONNECTED:STREAM-SENSING

    11:51:56.320 StreamerPricesScript.js?v=29.111:165
    and this is the server log at the same time of the issue i increase the log level to debug .

    26-May-24 11:51:30,310|DEBUG|L.pump |PUMP POOLED THREAD 1 |Pumping event in session S32a1467910dfce9dMb3fT4641208^M
    U,1023,1,0#0#0#29015.63;1716705360000#28815.82#0.0 ;1716705540000#28511.55#0.0;1716705960000#28392.9# 0.0;1716706020000#27731.35#0.0;1716706080000#26911 .74#0.0;1716706200000#26140.91#0.0;1716706320000#2 6164.02#0.0;1716706440000#27121.77#0.0;17167065000 00#26049.5#0.0;1716706560000#26163.86#0.0;17167066 20000#28300.02#0.0;1716706680000#26953.77#0.0;1716 706740000#29471.26#0.0;1716706800000#30439.58#0.0; 1716707040000#30558.22#0.0;1716707100000#31219.78# 0.0;1716707400000#32249.42#0.0;1716707460000#32354 .43#0.0;1716707520000#31829.35#0.0;1716707640000#3 1781.21#0.0;1716707700000#33358.79#0.0;17167077600 00#32175.8#0.0;1716707880000#28954.56#0.0;17167079 40000#29223.81#0.0;1716708000000#26993.09#0.0;1716 708060000#26256.83#0.0;1716708120000#22662.07#0.0; 1716708180000#23286.04#0.0;1716708900000#23435.9#0 .0;1716709320000#24089.1#0.0;1716710760000#23970.4 6#0.0;1716710820000#22489.29#0.0;1716710940000#214 17.02#0.0;1716711000000#20911.72#0.0;1716711060000 #22345.57#0.0;1716711120000#24231.05#0.0;171671118 0000#26933.32#0.0;1716711240000#29904.11#0.0;17167 11360000#30022.76#0.0;1716711480000#31503.92#0.0;1 716711600000#32576.2#0.0;1716711660000#32692.98#0. 0;1716712260000#32538.57#0.0;1716713460000#30703.8 3#0.0;1716713520000#29269.98#0.0|^M
    26-May-24 11:51:30,310|DEBUG|L.pump |PUMP POOLED THREAD 1 |Pumping event in session S32a1467910dfce9dMb3fT4641208^M
    U,1022,1,0#0#0#29015.63;1716705360000#28815.82#0.0 ;1716705540000#28511.55#0.0;1716705960000#28392.9# 0.0;1716706020000#27731.35#0.0;1716706080000#26911 .74#0.0;1716706200000#26140.91#0.0;1716706320000#2 6164.02#0.0;1716706440000#27121.77#0.0;17167065000 00#26049.5#0.0;1716706560000#26163.86#0.0;17167066 20000#28300.02#0.0;1716706680000#26953.77#0.0;1716 706740000#29471.26#0.0;1716706800000#30439.58#0.0; 1716707040000#30558.22#0.0;1716707100000#31219.78# 0.0;1716707400000#32249.42#0.0;1716707460000#32354 .43#0.0;1716707520000#31829.35#0.0;1716707640000#3 1781.21#0.0;1716707700000#33358.79#0.0;17167077600 00#32175.8#0.0;1716707880000#28954.56#0.0;17167079 40000#29223.81#0.0;1716708000000#26993.09#0.0;1716 708060000#26256.83#0.0;1716708120000#22662.07#0.0; 1716708180000#23286.04#0.0;1716708900000#23435.9#0 .0;1716709320000#24089.1#0.0;1716710760000#23970.4 6#0.0;1716710820000#22489.29#0.0;1716710940000#214 17.02#0.0;1716711000000#20911.72#0.0;1716711060000 #22345.57#0.0;1716711120000#24231.05#0.0;171671118 0000#26933.32#0.0;1716711240000#29904.11#0.0;17167 11360000#30022.76#0.0;1716711480000#31503.92#0.0;1 716711600000#32576.2#0.0;1716711660000#32692.98#0. 0;1716712260000#32538.57#0.0;1716713460000#30703.8 3#0.0;1716713520000#29269.98#0.0|^M
    U,1192,1,1000841800581326|||20.0000|10000||-25.926|1716713490000|-||^M
    26-May-24 11:51:30,311|ERROR|L.scheduler |PUMP POOLED THREAD 4 |Unexpected error in an internal task
    java.lang.ClassCastException: java.lang.String cannot be cast to com.lightstreamer.s.o.xx
    at com.lightstreamer.p.po.Q(po.java)
    at com.lightstreamer.c.u.b.p(b.java)
    at com.lightstreamer.c.u.e.d(e.java)
    at com.lightstreamer.c.u.k.d(k.java)
    at com.lightstreamer.c.u.b.R(b.java)
    at com.lightstreamer.c.u.w.R(w.java)
    at com.lightstreamer.c.l.sj.a(sj.java)
    at com.lightstreamer.c.l.sj.y(sj.java)
    at com.lightstreamer.c.l.sg.b(sg.java)
    at com.lightstreamer.c.k.C(k.java)
    at com.lightstreamer.c.k.l(k.java)
    at com.lightstreamer.c.c.m(c.java)
    at com.lightstreamer.s.t5.y(t5.java)
    at com.lightstreamer.s.j.q.o(q.java)
    at com.lightstreamer.s.j.q.run(q.java)
    at com.lightstreamer.s.j.c.run(c.java)
    at java.util.concurrent.ThreadPoolExecutor.runWorker( ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at com.lightstreamer.s.j.k.q.B(q.java)
    at com.lightstreamer.s.j.k.x.B(x.java)
    at com.lightstreamer.s.j.df.run(df.java)
    at com.lightstreamer.s.j.dd.run(dd.java)

    the issue appear when the PUMP have that extra "U,1192,1,1000841800581326|||20.0000|10000||-25.926|1716713490000|-||^M" after that casting failed , this is happening on version Lightstreamer-7.4.0
    Last edited by saleh.abdallah; May 27th, 2024 at 06:55 AM.

  2. #2
    Administrator
    Join Date
    Jul 2006
    Location
    Milan
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    1,093
    The only possible explanation for the Server exception is that the Data Adapter reused and modified a HashMap already sent through update or smartUpdate, supposedly to issue a subsequent update or smartUpdate.
    This is not compliant with the interface contract, which poses this restriction for performance matters.
    This assumes that the Data Adapter is a Java in-process one.
    Can you check this?

  3. #3
    Thank you DarioCrivelli yes that was the issue , the developer who wrote the adapter was updating the HashMap and resend it , i fixed the issue by cloning the map and modify it before sending it back .
    Last edited by saleh.abdallah; May 29th, 2024 at 11:09 AM.

 

 

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