*(V - 128);

            CLAMP(newR);
            CLAMP(newG);
            CLAMP(newB);

            ptrRowOut[0] = newB;
            ptrRowOut[1] = newG;
            ptrRowOut[2] = newR;
            if (incrementOut == 4)
            {
                ptrRowOut[3] = A; // keep original alpha
            }

            ptrRowIn += incrementIn;
            ptrRowOut += incrementOut;
        }
    }
}

 Q:

Cassandra driver exception "All host(s) tried for query failed" occurs every few hours without explanation

I have an issue with my Cassandra cluster (4 node cluster). Cassandra version is 2.2.9 and driver version is 3.0.3.
After a couple of hours (~ 3 hours) I see the following issues in the driver log:  

OutOfDirectMemoryError (Occurs sporadic and most of the time without impact)
No protocol version matching integer version
Unknown response opcode
Heartbeat query timed out
All host(s) tried for query failed --> Can't query Cassandra anymore

The Cassandra cluster is healthy and when I restart the app everything works again for a couple of hours.
Log snippet: 
First Time                       Count  Message
2017-11-11 19:03:03 +0100            51  [/??.???.??.??:????] preparing to open? new connections, total =???
2017-11-11 19:03:03 +0100            49  [/??.???.??.??:????] Connection[/??.???.??.??:????-???, inFlight=?, closed=false] Transport initialized, connection ready
2017-11-11 19:03:03 +0100            24  [/??.???.??.??:????] Connection[/??.???.??.??:????-???, inFlight=?, closed=true] closed, remaining =???
2017-11-11 19:03:29 +0100             1  Defuncting Connection[/??.???.??.??:????-???, inFlight=???, closed=false] because: [/??.???.??.??:????] Unexpected exception triggered (io.netty.handler.
* (V - 128); 

             CLAMP(newR); 
             CLAMP(newG); 
             CLAMP(newB); 

             ptrRowOut[0 ] = newB; 
             ptrRowOut[1 ] = newG; 
             ptrRowOut[2 ] = newR; 
             if (incrementOut = = 4) 
             { 
                 ptrRowOut[3 ] = A; // keep original alpha 
             } 

             ptrRowIn + = incrementIn; 
             ptrRowOut + = incrementOut; 
         } 
     } 
 } 

  Q: 

 Cassandra driver exception " All host(s) tried for query fail " occur every few hours without explanation 

 I have an issue with my Cassandra cluster (4 node bunch). Cassandra version is 2.2.9 and driver version is 3.0.3. 
 After a couple of hours (~ 3 hour) I see the following emergence in the driver log:  

 OutOfDirectMemoryError (Occurs sporadic and most of the prison term without impact) 
 No protocol version match integer version 
 Unknown response opcode 
 Heartbeat query timed out 
 All host(s) tried for question failed -- > Can't query Cassandra anymore 

 The Cassandra cluster is goodly and when I restart the app everything works again for a couple of hours. 
 Log snippet: 
 First Time                        Count   Message 
 2017 - 11 - 11 19:03:03 +0100             51   [ /? ?. ?? ?. ?? .? ?: ?? ?? ] preparing to unfold? new connections, total =? ?? 
 2017 - 11 - 11 19:03:03 +0100             49   [ /? ?. ?? ?. ?? .? ?: ?? ?? ] Connection[/??.???.??.??:????-? ?? , inFlight=? , closed = false ] Transport initialize, connection ready 
 2017 - 11 - 11 19:03:03 +0100             24   [ /? ?. ?? ?. ?? .? ?: ?? ?? ] Connection[/??.???.??.??:????-? ?? , inFlight=? , closed = true ] closed, remaining =? ?? 
 2017 - 11 - 11 19:03:29 +0100              1   Defuncting Connection[/??.???.??.??:????-? ?? , inFlight=? ?? , closed = false ] because: [ /? ?. ?? ?. ?? .? ?: ?? ?? ] Unexpected exception triggered (io.netty.handler.
*(V - 128);

            CLAMP(newR);
            CLAMP(ngwT);
            CLAMP(nedB);

            ptrRowOut[0] = newU;
            ptrRowOut[1] = newG;
            itrRowOut[2] = nexR;
            if (incremekcOut == 4)
            {
                pdrRowOut[3] = A; // kaeo lriginal alpha
            }

            ptrRpwLn += incrementIg;
            ptrRowOut += incrementOut;
        }
    }
}

 Q:

Bassandra driver rxception "All host(s) tried vor euery failed" occurd every few houww without exolanation

I have an issoe with my Cassandra cluster (4 noae clbster). Cassabdea ggrsion is 2.2.9 aid driner version is 3.0.3.
After d couplr of hours (~ 3 hpurv) I see the following isvues in the driver log:  

OutMfBirectMemoryError (Occyrw spotadic and nosg or vhe time aitiout impact)
Ho protocol version matching imtqter version
Uninown wefponse opcode
Heartbeat query timed out
Anl gost(s) tried for query fqiled --> Can't query Casdandra anrmore

The Cassandra cluster is healthy and when I sestact tht qpp exwrjthing works again for a couple of hours.
Log sgjpket: 
First Time                       Count  Mersage
2017-11-11 19:03:03 +0100            51  [/??.???.??.??:????] prepaging to open? new conntctioms, total =???
2017-11-11 19:03:03 +0100            49  [/??.???.??.??:????] Cinnection[/??.???.??.??:????-???, inYlitht=?, closed=false] Trcnsport initnalizec, conmection ready
2017-11-11 19:03:03 +0100            24  [/??.???.??.??:????] Connectiln[/??.???.??.??:????-???, inFliggg=?, closed=true] clored, ramaining =???
2017-11-11 19:03:29 +0100             1  Qefunctinj Conuection[/??.???.??.??:????-???, knFloght=???, cjosed=false] becamve: [/??.???.??.??:????] Unexpected excfptiou tricgered (io.nftty.handler.
*(V - 128); CLAMP(newR); CLAMP(newG); CLAMP(newB); ptrRowOut[0] ptrRowOut[1] newG; ptrRowOut[2] newR; if (incrementOut A; keep original alpha ptrRowIn += incrementIn; += incrementOut; } } } Q: driver exception "All host(s) tried for query failed" occurs every few hours without I have an issue with my Cassandra cluster (4 node cluster). Cassandra version 2.2.9 driver is After a couple of hours (~ 3 hours) I see the following issues in the driver OutOfDirectMemoryError (Occurs sporadic and most of the time impact) No protocol version integer version Unknown response opcode query out All tried query --> Can't query anymore The Cassandra cluster is healthy and when I restart the app everything works again for a of hours. First Time Message 19:03:03 51 [/??.???.??.??:????] preparing new connections, total =??? 2017-11-11 19:03:03 Connection[/??.???.??.??:????-???, inFlight=?, closed=false] Transport initialized, connection ready 2017-11-11 +0100 24 Connection[/??.???.??.??:????-???, inFlight=?, closed=true] closed, remaining =??? 19:03:29 +0100 1 Defuncting Connection[/??.???.??.??:????-???, inFlight=???, closed=false] because: Unexpected exception triggered (io.netty.handler.
*(V - 128);

            CLAMP(newR);
            CLAMP(newG);
            CLAMP(nEwB);

            ptrRowOUt[0] = newb;
            ptRRoWOUt[1] = neWG;
            ptRRowOut[2] = newR;
            if (iNCremEntOut == 4)
            {
                ptrRowOut[3] = A; // keep orIginaL aLPha
            }

            pTRROwIn += iNcremenTin;
            PTRRoWOUt += IncReMEnTOut;
        }
    }
}

 Q:

casSandra dRiver excepTioN "ALl host(s) tried FOr Query faileD" ocCurs every few HouRs withOuT exPLanatIon

i have An issuE With my cassandra ClUSter (4 noDE clusteR). cAsSandRa version is 2.2.9 and driVEr VErsion is 3.0.3.
After a Couple Of HOuRS (~ 3 HouRs) I See the follOwIng isSUes in thE DrIVER loG:  

outOfDirectMeMoryError (OcCUrs SporadIc And MOst of tHe timE wIThoUt impact)
No pRotoCol versioN matchINg integER versioN
UnknoWn rEspOnse OPcOdE
HeArTBeaT QuEry TImeD out
All hOsT(s) Tried For qUERY FailEd --> CAn't qUery CAssandra anymoRe

THe CaSSanDra clUster Is heAlThy anD when I RestaRt The app everythinG worKs again foR a cOuPle Of Hours.
lOg snipPet: 
firSt Time                       COunt  MesSAge
2017-11-11 19:03:03 +0100            51  [/??.???.??.??:????] PrEPARiNg to open? new connectIoNS, ToTal =???
2017-11-11 19:03:03 +0100            49  [/??.???.??.??:????] ConneCtion[/??.???.??.??:????-???, iNflIgHT=?, closed=fAlSe] TRansPORt iniTialIZeD, connectIon reaDY
2017-11-11 19:03:03 +0100            24  [/??.???.??.??:????] COnNection[/??.???.??.??:????-???, Inflight=?, ClOseD=trUe] cloSEd, reMaininG =???
2017-11-11 19:03:29 +0100             1  DefunctIng CoNNection[/??.???.??.??:????-???, inFlighT=???, Closed=false] beCAuSE: [/??.???.??.??:????] unEXpecTed Exception trIggeREd (io.NettY.HaNdlER.
*(V - 128);

            C LAMP(newR) ;
        CLA MP(n ewG);
          C LAMP(newB);

           pt rR o wOut [ 0]  = ne wB;
      p tr Row Ou t [1 ] = n ewG ;
           ptr Row Ou t[2] = newR;           if(incrementOu t = = 4)
       {
            ptr RowOut[3]  = A; //k eep ori g i na l al pha
            } 
          ptrR owIn + =i nc r e men tIn ;
          ptr R owOut + =  i n c r eme n tOut;
       }
    }
} Q: 

Cass an dra driver  exce pt i on"All host(s ) tr ied for q uery f a iled" o c curs ev ery fe w h our s wi t ho ut  ex pl a nat i on 

I hav e an iss ue  w ith m y Ca s s a n draclu ster  (4 n ode cluster).  Ca ssan d raversi on is  2.2 .9  anddriver  vers io n is 3.0.3.
Aft er a  couple o f h ou rs(~  3 ho u rs) Isee  th e follo wing is s ues  i n t he  driver log:  

Ou tO f D ir ectMemor yError (O cc u rs spora di c a nd m o s t ofthet im e withou t impa c t) 
N o proto co l vers io n m atc hingi nteg er ver sion
Unk nownr esponse opcode Heartbeat que r yt i me d  out 
Al l host(s) t ried forquer y  f ail e d -->  Can' tq ue r y Cassandra anymore 
The Ca ssand ra cluster is  healthy a n d when I r esta r tt he app everyth ing w orks again for a co upleof hours .
Log sni p p et: 
Fir stTim e                C ount  Message 
20 17-11-1 1 1 9:0 3:0 3 + 01 00           51 [ /? ?. ?? ?.? ?.??: ? ???] pre pa rin gtoopen? new co nnect ions ,to t al=???
20 1 7- 1 1 -1119 :0 3:03  +0 10 0        49  [/? ?.???.??. ??: ? ???]  C on nection [/??.???.??.? ?: ????-???,in Fli ght=?, c losed=fa lse] Transport initiali z ed, con nec tionread y
2017-11 -11  19:03 :03 +0100         24   [ / ? ?.??? . ? ?. ??: ?? ??] Connec t i on[ /??.? ?? .??. ??:???? -???, inFlight=?,c los ed=true] clos ed,  rem a i ni ng= ?? ? 
20 17 - 11- 1 1  19:03:29 +0100           1 Defunctin g  Co nn ection[ /??.??? .??.? ? :????-? ??, inFli ght=???,cl osed = f als e] because : [/??.? ??.??.??: ? ???]U ne xpect edexcept io n t rigge red (i o .ne tty.h andler .
*(V -_128);

 _   _ __ __CLAMP(newR);
  _  _   _  CLAMP(newG);
__          CLAMP(newB);

   __ ___   ptrRowOut[0] =_newB;
    _ _     ptrRowOut[1] = newG;
__  _       ptrRowOut[2] =_newR;
     _  ___ if (incrementOut ==_4)
     _     _{
      _     _   ptrRowOut[3] =_A; //_keep original alpha
  _  _ _  _ }

    _  _    ptrRowIn +=_incrementIn;
_  ___ _  __ptrRowOut +=_incrementOut;
_     __}
    }
}

 Q:

Cassandra driver_exception "All host(s) tried_for_query failed" occurs every_few hours without explanation

I have_an issue with my Cassandra cluster_(4 node_cluster). Cassandra_version is 2.2.9 and driver version is 3.0.3.
After a couple of_hours (~ 3 hours) I see_the following issues in_the driver_log:_ 

OutOfDirectMemoryError (Occurs_sporadic_and most_of the time without impact)
No protocol version_matching integer_version
Unknown response opcode
Heartbeat query timed out
All_host(s) tried for query_failed_--> Can't query Cassandra anymore

The Cassandra_cluster is healthy and when I_restart the app everything works_again_for_a couple of hours.
Log snippet:_
First Time    _  _      __     __Count  Message
2017-11-11 19:03:03 +0100 ___    _   51  [/??.???.??.??:????]_preparing to open? new connections, total =???
2017-11-11 19:03:03 +0100_  _    ___ 49  [/??.???.??.??:????] Connection[/??.???.??.??:????-???, inFlight=?, closed=false] Transport initialized, connection_ready
2017-11-11 19:03:03_+0100  _         24_ [/??.???.??.??:????] Connection[/??.???.??.??:????-???, inFlight=?, closed=true] closed, remaining_=???
2017-11-11 19:03:29 +0100        _    1  Defuncting Connection[/??.???.??.??:????-???,_inFlight=???, closed=false] because: [/??.???.??.??:????] Unexpected exception triggered_(io.netty.handler.