Re: [Neo4j] Neo Server slow on frequent requests
Hi Dario, I just had a peek at the thread dump, and it appear that it was not captured during the frozen period. Is that correct? If captured when the system appears frozen, it will show information about what the threads are doing or waiting for. Thanks, David On Wed, Apr 13, 2011 at 2:50 AM, Dario Rexin wrote: > Hi Tobias, > > I was already sending requests to the server in the last dump. Here is > another, hopefully this one is more helpful. The longer I request data, the > longer it takes for the server to answer. After some time it frequently > freezes for up to several seconds without answering to any of the requests. > > https://gist.github.com/917283 > > Cheers, > > Dario > > Am 13.04.11 11:14 schrieb "Tobias Ivarsson" unter > : > > > Hi Dario, > > > > This dump looks perfectly fine, the expected threads are there, but they > are > > all idle waiting for work. > > > > When I asked for a thread dump, I wanted one from when the server was > under > > load and you experienced problems. Sorry for not being clear about that. > > > > Cheers, > > Tobias > > > > On Wed, Apr 13, 2011 at 10:34 AM, Dario Rexin > wrote: > > > >> Hey, > >> > >> Somehow my attached files always get deleted. Heres the dump: > >> > >> https://gist.github.com/917199 > >> > >> > >> Cheers, > >> > >> Dario > >> > >> Am 13.04.11 10:30 schrieb "Dario Rexin" unter : > >> > >>> Hi Tobias, > >>> > >>> Here's the thread dump you asked for. Thank you for taking a look at > >> this. > >>> > >>> > >>> Cheers, > >>> > >>> Dario > >>> > >>> > >>> Am 12.04.11 22:16 schrieb "Tobias Ivarsson" unter > >>> : > >>> > Hi Dario, > > Looking at that picture it is indeed clear that a number of threads > are > waiting for something. What is not shown is the more important > >> information > about *what* they are waiting for. I would love to get information > like > >> that > in order to investigate the cause of the performance problem you are > >> seeing. > If you could send a thread dump instead of a screenshot that would be > a > >> lot > more useful, since that would contain information about contention > that > >> I > could actually analyze. The easiest way to get a thread dump is by > >> sending > the SIGQUIT signal (kill -3) to the JVM process running Neo4j. > > Cheers, > Tobias > > On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin > >> wrote: > > > Hi all, > > > > Due to huge performance issues with some of our neo queries I > profiled > >> my > > calls on the neo server. The profiling shows, that up to 85% of the > >> time the > > threads are waiting for other threads. I don¹t understand what¹s > going > >> on > > there. Hopefully someone with a deeper knowledge can help me. Am I > >> doing > > something wrong, or is it normal, that most of the time the threads > are > > blocking each other? Her is a screenshot, showing the results of my > > profiling: http://i.imgur.com/eIfam.jpg > > > > > > Thanks in advice, > > > > Dario > > ___ > > Neo4j mailing list > > User@lists.neo4j.org > > https://lists.neo4j.org/mailman/listinfo/user > > > > > >> > >> -- > >> Dario Rexin > >> Junior Manager Engineering > >> dario.re...@xing.com > >> > >> XING AG > >> Gaensemarkt 43, 20354 Hamburg, Germany > >> > >> Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 > >> Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo > Chu, > >> Dr. Helmut Becker, Jens Pape > >> Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil > >> Sunderland > >> > >> Please join my network on XING: > >> https://www.xing.com/profile/Dario_Rexin > >> > >> This e-mail may contain confidential and/or privileged information. If > you > >> are not the intended recipient (or have received this e-mail in error) > >> please notify the sender immediately and destroy this e-mail. Any > >> unauthorised copying, disclosure or distribution of the material in this > >> e-mail is strictly forbidden and may be unlawful. > >> > >> ___ > >> Neo4j mailing list > >> User@lists.neo4j.org > >> https://lists.neo4j.org/mailman/listinfo/user > >> > > > > > > -- > Dario Rexin > Junior Manager Engineering > dario.re...@xing.com > > XING AG > Gaensemarkt 43, 20354 Hamburg, Germany > > Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 > Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, > Dr. Helmut Becker, Jens Pape > Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil > Sunderland > > Please join my network on XING: > https://www.xing.com/profile/Dario_Rexin > > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) > please notify the sender immediately and destroy this
Re: [Neo4j] Neo Server slow on frequent requests
That one looks much more interesting. I'm too tired right now, but I'll look at it tomorrow. On Wed, Apr 13, 2011 at 11:50 AM, Dario Rexin wrote: > Hi Tobias, > > I was already sending requests to the server in the last dump. Here is > another, hopefully this one is more helpful. The longer I request data, the > longer it takes for the server to answer. After some time it frequently > freezes for up to several seconds without answering to any of the requests. > > https://gist.github.com/917283 > > Cheers, > > Dario > > Am 13.04.11 11:14 schrieb "Tobias Ivarsson" unter > : > > > Hi Dario, > > > > This dump looks perfectly fine, the expected threads are there, but they > are > > all idle waiting for work. > > > > When I asked for a thread dump, I wanted one from when the server was > under > > load and you experienced problems. Sorry for not being clear about that. > > > > Cheers, > > Tobias > > > > On Wed, Apr 13, 2011 at 10:34 AM, Dario Rexin > wrote: > > > >> Hey, > >> > >> Somehow my attached files always get deleted. Heres the dump: > >> > >> https://gist.github.com/917199 > >> > >> > >> Cheers, > >> > >> Dario > >> > >> Am 13.04.11 10:30 schrieb "Dario Rexin" unter : > >> > >>> Hi Tobias, > >>> > >>> Here's the thread dump you asked for. Thank you for taking a look at > >> this. > >>> > >>> > >>> Cheers, > >>> > >>> Dario > >>> > >>> > >>> Am 12.04.11 22:16 schrieb "Tobias Ivarsson" unter > >>> : > >>> > Hi Dario, > > Looking at that picture it is indeed clear that a number of threads > are > waiting for something. What is not shown is the more important > >> information > about *what* they are waiting for. I would love to get information > like > >> that > in order to investigate the cause of the performance problem you are > >> seeing. > If you could send a thread dump instead of a screenshot that would be > a > >> lot > more useful, since that would contain information about contention > that > >> I > could actually analyze. The easiest way to get a thread dump is by > >> sending > the SIGQUIT signal (kill -3) to the JVM process running Neo4j. > > Cheers, > Tobias > > On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin > >> wrote: > > > Hi all, > > > > Due to huge performance issues with some of our neo queries I > profiled > >> my > > calls on the neo server. The profiling shows, that up to 85% of the > >> time the > > threads are waiting for other threads. I don¹t understand what¹s > going > >> on > > there. Hopefully someone with a deeper knowledge can help me. Am I > >> doing > > something wrong, or is it normal, that most of the time the threads > are > > blocking each other? Her is a screenshot, showing the results of my > > profiling: http://i.imgur.com/eIfam.jpg > > > > > > Thanks in advice, > > > > Dario > > ___ > > Neo4j mailing list > > User@lists.neo4j.org > > https://lists.neo4j.org/mailman/listinfo/user > > > > > >> > >> -- > >> Dario Rexin > >> Junior Manager Engineering > >> dario.re...@xing.com > >> > >> XING AG > >> Gaensemarkt 43, 20354 Hamburg, Germany > >> > >> Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 > >> Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo > Chu, > >> Dr. Helmut Becker, Jens Pape > >> Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil > >> Sunderland > >> > >> Please join my network on XING: > >> https://www.xing.com/profile/Dario_Rexin > >> > >> This e-mail may contain confidential and/or privileged information. If > you > >> are not the intended recipient (or have received this e-mail in error) > >> please notify the sender immediately and destroy this e-mail. Any > >> unauthorised copying, disclosure or distribution of the material in this > >> e-mail is strictly forbidden and may be unlawful. > >> > >> ___ > >> Neo4j mailing list > >> User@lists.neo4j.org > >> https://lists.neo4j.org/mailman/listinfo/user > >> > > > > > > -- > Dario Rexin > Junior Manager Engineering > dario.re...@xing.com > > XING AG > Gaensemarkt 43, 20354 Hamburg, Germany > > Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 > Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, > Dr. Helmut Becker, Jens Pape > Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil > Sunderland > > Please join my network on XING: > https://www.xing.com/profile/Dario_Rexin > > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) > please notify the sender immediately and destroy this e-mail. Any > unauthorised copying, disclosure or distribution of the material in this > e-mail is strictly forbidden and may be unlawful. > > __
Re: [Neo4j] Neo Server slow on frequent requests
Hi Tobias, I was already sending requests to the server in the last dump. Here is another, hopefully this one is more helpful. The longer I request data, the longer it takes for the server to answer. After some time it frequently freezes for up to several seconds without answering to any of the requests. https://gist.github.com/917283 Cheers, Dario Am 13.04.11 11:14 schrieb "Tobias Ivarsson" unter : > Hi Dario, > > This dump looks perfectly fine, the expected threads are there, but they are > all idle waiting for work. > > When I asked for a thread dump, I wanted one from when the server was under > load and you experienced problems. Sorry for not being clear about that. > > Cheers, > Tobias > > On Wed, Apr 13, 2011 at 10:34 AM, Dario Rexin wrote: > >> Hey, >> >> Somehow my attached files always get deleted. Heres the dump: >> >> https://gist.github.com/917199 >> >> >> Cheers, >> >> Dario >> >> Am 13.04.11 10:30 schrieb "Dario Rexin" unter : >> >>> Hi Tobias, >>> >>> Here's the thread dump you asked for. Thank you for taking a look at >> this. >>> >>> >>> Cheers, >>> >>> Dario >>> >>> >>> Am 12.04.11 22:16 schrieb "Tobias Ivarsson" unter >>> : >>> Hi Dario, Looking at that picture it is indeed clear that a number of threads are waiting for something. What is not shown is the more important >> information about *what* they are waiting for. I would love to get information like >> that in order to investigate the cause of the performance problem you are >> seeing. If you could send a thread dump instead of a screenshot that would be a >> lot more useful, since that would contain information about contention that >> I could actually analyze. The easiest way to get a thread dump is by >> sending the SIGQUIT signal (kill -3) to the JVM process running Neo4j. Cheers, Tobias On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin >> wrote: > Hi all, > > Due to huge performance issues with some of our neo queries I profiled >> my > calls on the neo server. The profiling shows, that up to 85% of the >> time the > threads are waiting for other threads. I don¹t understand what¹s going >> on > there. Hopefully someone with a deeper knowledge can help me. Am I >> doing > something wrong, or is it normal, that most of the time the threads are > blocking each other? Her is a screenshot, showing the results of my > profiling: http://i.imgur.com/eIfam.jpg > > > Thanks in advice, > > Dario > ___ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > >> >> -- >> Dario Rexin >> Junior Manager Engineering >> dario.re...@xing.com >> >> XING AG >> Gaensemarkt 43, 20354 Hamburg, Germany >> >> Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 >> Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, >> Dr. Helmut Becker, Jens Pape >> Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil >> Sunderland >> >> Please join my network on XING: >> https://www.xing.com/profile/Dario_Rexin >> >> This e-mail may contain confidential and/or privileged information. If you >> are not the intended recipient (or have received this e-mail in error) >> please notify the sender immediately and destroy this e-mail. Any >> unauthorised copying, disclosure or distribution of the material in this >> e-mail is strictly forbidden and may be unlawful. >> >> ___ >> Neo4j mailing list >> User@lists.neo4j.org >> https://lists.neo4j.org/mailman/listinfo/user >> > > -- Dario Rexin Junior Manager Engineering dario.re...@xing.com XING AG Gaensemarkt 43, 20354 Hamburg, Germany Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, Dr. Helmut Becker, Jens Pape Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil Sunderland Please join my network on XING: https://www.xing.com/profile/Dario_Rexin This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden and may be unlawful. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo Server slow on frequent requests
Hi Dario, This dump looks perfectly fine, the expected threads are there, but they are all idle waiting for work. When I asked for a thread dump, I wanted one from when the server was under load and you experienced problems. Sorry for not being clear about that. Cheers, Tobias On Wed, Apr 13, 2011 at 10:34 AM, Dario Rexin wrote: > Hey, > > Somehow my attached files always get deleted. Heres the dump: > > https://gist.github.com/917199 > > > Cheers, > > Dario > > Am 13.04.11 10:30 schrieb "Dario Rexin" unter : > > > Hi Tobias, > > > > Here's the thread dump you asked for. Thank you for taking a look at > this. > > > > > > Cheers, > > > > Dario > > > > > > Am 12.04.11 22:16 schrieb "Tobias Ivarsson" unter > > : > > > >> Hi Dario, > >> > >> Looking at that picture it is indeed clear that a number of threads are > >> waiting for something. What is not shown is the more important > information > >> about *what* they are waiting for. I would love to get information like > that > >> in order to investigate the cause of the performance problem you are > seeing. > >> If you could send a thread dump instead of a screenshot that would be a > lot > >> more useful, since that would contain information about contention that > I > >> could actually analyze. The easiest way to get a thread dump is by > sending > >> the SIGQUIT signal (kill -3) to the JVM process running Neo4j. > >> > >> Cheers, > >> Tobias > >> > >> On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin > wrote: > >> > >>> Hi all, > >>> > >>> Due to huge performance issues with some of our neo queries I profiled > my > >>> calls on the neo server. The profiling shows, that up to 85% of the > time the > >>> threads are waiting for other threads. I don¹t understand what¹s going > on > >>> there. Hopefully someone with a deeper knowledge can help me. Am I > doing > >>> something wrong, or is it normal, that most of the time the threads are > >>> blocking each other? Her is a screenshot, showing the results of my > >>> profiling: http://i.imgur.com/eIfam.jpg > >>> > >>> > >>> Thanks in advice, > >>> > >>> Dario > >>> ___ > >>> Neo4j mailing list > >>> User@lists.neo4j.org > >>> https://lists.neo4j.org/mailman/listinfo/user > >>> > >> > >> > > -- > Dario Rexin > Junior Manager Engineering > dario.re...@xing.com > > XING AG > Gaensemarkt 43, 20354 Hamburg, Germany > > Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 > Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, > Dr. Helmut Becker, Jens Pape > Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil > Sunderland > > Please join my network on XING: > https://www.xing.com/profile/Dario_Rexin > > This e-mail may contain confidential and/or privileged information. If you > are not the intended recipient (or have received this e-mail in error) > please notify the sender immediately and destroy this e-mail. Any > unauthorised copying, disclosure or distribution of the material in this > e-mail is strictly forbidden and may be unlawful. > > ___ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > -- Tobias Ivarsson Hacker, Neo Technology www.neotechnology.com Cellphone: +46 706 534857 ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo Server slow on frequent requests
Hey, Somehow my attached files always get deleted. Heres the dump: https://gist.github.com/917199 Cheers, Dario Am 13.04.11 10:30 schrieb "Dario Rexin" unter : > Hi Tobias, > > Here's the thread dump you asked for. Thank you for taking a look at this. > > > Cheers, > > Dario > > > Am 12.04.11 22:16 schrieb "Tobias Ivarsson" unter > : > >> Hi Dario, >> >> Looking at that picture it is indeed clear that a number of threads are >> waiting for something. What is not shown is the more important information >> about *what* they are waiting for. I would love to get information like that >> in order to investigate the cause of the performance problem you are seeing. >> If you could send a thread dump instead of a screenshot that would be a lot >> more useful, since that would contain information about contention that I >> could actually analyze. The easiest way to get a thread dump is by sending >> the SIGQUIT signal (kill -3) to the JVM process running Neo4j. >> >> Cheers, >> Tobias >> >> On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin wrote: >> >>> Hi all, >>> >>> Due to huge performance issues with some of our neo queries I profiled my >>> calls on the neo server. The profiling shows, that up to 85% of the time the >>> threads are waiting for other threads. I don¹t understand what¹s going on >>> there. Hopefully someone with a deeper knowledge can help me. Am I doing >>> something wrong, or is it normal, that most of the time the threads are >>> blocking each other? Her is a screenshot, showing the results of my >>> profiling: http://i.imgur.com/eIfam.jpg >>> >>> >>> Thanks in advice, >>> >>> Dario >>> ___ >>> Neo4j mailing list >>> User@lists.neo4j.org >>> https://lists.neo4j.org/mailman/listinfo/user >>> >> >> -- Dario Rexin Junior Manager Engineering dario.re...@xing.com XING AG Gaensemarkt 43, 20354 Hamburg, Germany Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, Dr. Helmut Becker, Jens Pape Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil Sunderland Please join my network on XING: https://www.xing.com/profile/Dario_Rexin This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden and may be unlawful. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo Server slow on frequent requests
Hi Tobias, Here's the thread dump you asked for. Thank you for taking a look at this. Cheers, Dario Am 12.04.11 22:16 schrieb "Tobias Ivarsson" unter : > Hi Dario, > > Looking at that picture it is indeed clear that a number of threads are > waiting for something. What is not shown is the more important information > about *what* they are waiting for. I would love to get information like that > in order to investigate the cause of the performance problem you are seeing. > If you could send a thread dump instead of a screenshot that would be a lot > more useful, since that would contain information about contention that I > could actually analyze. The easiest way to get a thread dump is by sending > the SIGQUIT signal (kill -3) to the JVM process running Neo4j. > > Cheers, > Tobias > > On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin wrote: > >> Hi all, >> >> Due to huge performance issues with some of our neo queries I profiled my >> calls on the neo server. The profiling shows, that up to 85% of the time the >> threads are waiting for other threads. I don¹t understand what¹s going on >> there. Hopefully someone with a deeper knowledge can help me. Am I doing >> something wrong, or is it normal, that most of the time the threads are >> blocking each other? Her is a screenshot, showing the results of my >> profiling: http://i.imgur.com/eIfam.jpg >> >> >> Thanks in advice, >> >> Dario >> ___ >> Neo4j mailing list >> User@lists.neo4j.org >> https://lists.neo4j.org/mailman/listinfo/user >> > > -- Dario Rexin Junior Manager Engineering dario.re...@xing.com XING AG Gaensemarkt 43, 20354 Hamburg, Germany Commercial Reg. (Registergericht): Amtsgericht Hamburg, HRB 98807 Exec. Board (Vorstand): Dr. Stefan Groß-Selbeck (Vorsitzender), Ingo Chu, Dr. Helmut Becker, Jens Pape Chairman of the Supervisory Board (Aufsichtsratsvorsitzender): Dr. Neil Sunderland Please join my network on XING: https://www.xing.com/profile/Dario_Rexin This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden and may be unlawful. ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo Server slow on frequent requests
Hi Dario, Looking at that picture it is indeed clear that a number of threads are waiting for something. What is not shown is the more important information about *what* they are waiting for. I would love to get information like that in order to investigate the cause of the performance problem you are seeing. If you could send a thread dump instead of a screenshot that would be a lot more useful, since that would contain information about contention that I could actually analyze. The easiest way to get a thread dump is by sending the SIGQUIT signal (kill -3) to the JVM process running Neo4j. Cheers, Tobias On Tue, Apr 12, 2011 at 6:35 PM, Dario Rexin wrote: > Hi all, > > Due to huge performance issues with some of our neo queries I profiled my > calls on the neo server. The profiling shows, that up to 85% of the time the > threads are waiting for other threads. I don’t understand what’s going on > there. Hopefully someone with a deeper knowledge can help me. Am I doing > something wrong, or is it normal, that most of the time the threads are > blocking each other? Her is a screenshot, showing the results of my > profiling: http://i.imgur.com/eIfam.jpg > > > Thanks in advice, > > Dario > ___ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > -- Tobias Ivarsson Hacker, Neo Technology www.neotechnology.com Cellphone: +46 706 534857 ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Neo Server slow on frequent requests
Hi, Dario. I suspect we might be seeing some of the same issues, in an environment where we are simultaneously writing a steady stream of data into neo while also attempting to query it back out. The very nature of our graph design requires that there be a few "mother nodes" for various collections of entities, and I have a strong suspicion that these are the source of the synchronization issues. Do you have anything similar in your graph design? A handful of "hot spot" nodes that see a lot of other nodes/relationships being attached/detached frequently? Rick -Original Message- From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On Behalf Of Dario Rexin Sent: Tuesday, April 12, 2011 12:36 PM To: Neo4j user discussions Subject: [Neo4j] Neo Server slow on frequent requests Hi all, Due to huge performance issues with some of our neo queries I profiled my calls on the neo server. The profiling shows, that up to 85% of the time the threads are waiting for other threads. I don't understand what's going on there. Hopefully someone with a deeper knowledge can help me. Am I doing something wrong, or is it normal, that most of the time the threads are blocking each other? Her is a screenshot, showing the results of my profiling: http://i.imgur.com/eIfam.jpg Thanks in advice, Dario ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
[Neo4j] Neo Server slow on frequent requests
Hi all, Due to huge performance issues with some of our neo queries I profiled my calls on the neo server. The profiling shows, that up to 85% of the time the threads are waiting for other threads. I don’t understand what’s going on there. Hopefully someone with a deeper knowledge can help me. Am I doing something wrong, or is it normal, that most of the time the threads are blocking each other? Her is a screenshot, showing the results of my profiling: http://i.imgur.com/eIfam.jpg Thanks in advice, Dario ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
