Re: ES and Java 8. Does it worth the effort ?
Would love to hear from Elasticsearch about plans on moving to Java 8. Vaidik Kapoor vaidikkapoor.info On 31 October 2014 03:08, joergpra...@gmail.com joergpra...@gmail.com wrote: Of course is Java 8 worth the effort. Some highlights: - no more permgen OOMs - improved concurrency implementations: http://docs.oracle.com/javase/8/docs/technotes/guides/concurrency/changes8.html - faster hash maps (20%) - lambda expressions are faster than inner classes Some concurrency classes like LongAdder are already included in ES. Java 8 JVM brings also G1 GC to its full extension. G1 GC is not faster than CMS GC, but it scales much better over multicore and reduces stop-the-world pauses to milliseconds. To exploit the full advantage of Java 8, ES would need a large overhaul by rewriting inner classes to lambda style, streams, fork/join pool etc. As long as Lucene does not switch to Java 8, the benefit is only partial. Jörg On Thu, Oct 30, 2014 at 9:01 PM, Georgi Ivanov georgi.r.iva...@gmail.com wrote: Hi , I wander if i should start using Java 8 with my ES cluster. Are there any benefits using Java 8 ? For example : faster GC , faster Java itself .. anything ES would bebefit from Java 8 .. etc Please share your experience. Georgi -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CACWtv5mwvxGmww6kQyEtmcq9XjjghAB1LbrGaMJ2gRcF%2BFsJqg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
Re: ES and Java 8. Does it worth the effort ?
We upgraded to Java 8 OpenJDK a few weeks ago - no problems seen so far. D On Friday, 31 October 2014 08:39:39 UTC, Jörg Prante wrote: For JVM support, see http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/setup.html We recommend installing the Java 8 update 20 or later, or Java 7 update 55 or later Jörg On Fri, Oct 31, 2014 at 8:19 AM, Vaidik Kapoor kapoor...@gmail.com javascript: wrote: Would love to hear from Elasticsearch about plans on moving to Java 8. Vaidik Kapoor vaidikkapoor.info On 31 October 2014 03:08, joerg...@gmail.com javascript: joerg...@gmail.com javascript: wrote: Of course is Java 8 worth the effort. Some highlights: - no more permgen OOMs - improved concurrency implementations: http://docs.oracle.com/javase/8/docs/technotes/guides/concurrency/changes8.html - faster hash maps (20%) - lambda expressions are faster than inner classes Some concurrency classes like LongAdder are already included in ES. Java 8 JVM brings also G1 GC to its full extension. G1 GC is not faster than CMS GC, but it scales much better over multicore and reduces stop-the-world pauses to milliseconds. To exploit the full advantage of Java 8, ES would need a large overhaul by rewriting inner classes to lambda style, streams, fork/join pool etc. As long as Lucene does not switch to Java 8, the benefit is only partial. Jörg On Thu, Oct 30, 2014 at 9:01 PM, Georgi Ivanov georgi@gmail.com javascript: wrote: Hi , I wander if i should start using Java 8 with my ES cluster. Are there any benefits using Java 8 ? For example : faster GC , faster Java itself .. anything ES would bebefit from Java 8 .. etc Please share your experience. Georgi -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearc...@googlegroups.com javascript:. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearc...@googlegroups.com javascript:. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearc...@googlegroups.com javascript:. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CACWtv5mwvxGmww6kQyEtmcq9XjjghAB1LbrGaMJ2gRcF%2BFsJqg%40mail.gmail.com https://groups.google.com/d/msgid/elasticsearch/CACWtv5mwvxGmww6kQyEtmcq9XjjghAB1LbrGaMJ2gRcF%2BFsJqg%40mail.gmail.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/a04b814e-307c-46ba-aff3-fed79da04f09%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: ES and Java 8. Does it worth the effort ?
Didn't see that, thanks for mentioning it though! On 31 October 2014 19:39, joergpra...@gmail.com joergpra...@gmail.com wrote: For JVM support, see http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/setup.html We recommend installing the Java 8 update 20 or later, or Java 7 update 55 or later Jörg On Fri, Oct 31, 2014 at 8:19 AM, Vaidik Kapoor kapoor.vai...@gmail.com wrote: Would love to hear from Elasticsearch about plans on moving to Java 8. Vaidik Kapoor vaidikkapoor.info On 31 October 2014 03:08, joergpra...@gmail.com joergpra...@gmail.com wrote: Of course is Java 8 worth the effort. Some highlights: - no more permgen OOMs - improved concurrency implementations: http://docs.oracle.com/javase/8/docs/technotes/guides/concurrency/changes8.html - faster hash maps (20%) - lambda expressions are faster than inner classes Some concurrency classes like LongAdder are already included in ES. Java 8 JVM brings also G1 GC to its full extension. G1 GC is not faster than CMS GC, but it scales much better over multicore and reduces stop-the-world pauses to milliseconds. To exploit the full advantage of Java 8, ES would need a large overhaul by rewriting inner classes to lambda style, streams, fork/join pool etc. As long as Lucene does not switch to Java 8, the benefit is only partial. Jörg On Thu, Oct 30, 2014 at 9:01 PM, Georgi Ivanov georgi.r.iva...@gmail.com wrote: Hi , I wander if i should start using Java 8 with my ES cluster. Are there any benefits using Java 8 ? For example : faster GC , faster Java itself .. anything ES would bebefit from Java 8 .. etc Please share your experience. Georgi -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CACWtv5mwvxGmww6kQyEtmcq9XjjghAB1LbrGaMJ2gRcF%2BFsJqg%40mail.gmail.com https://groups.google.com/d/msgid/elasticsearch/CACWtv5mwvxGmww6kQyEtmcq9XjjghAB1LbrGaMJ2gRcF%2BFsJqg%40mail.gmail.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoEyec8zLZfipmABn88M5aFb4hyu_FjubKfdggQabXuKNQ%40mail.gmail.com https://groups.google.com/d/msgid/elasticsearch/CAKdsXoEyec8zLZfipmABn88M5aFb4hyu_FjubKfdggQabXuKNQ%40mail.gmail.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAF3ZnZk7R4ybxwKFBqO55WD%2BREDzP6pYdUhZNpa85nXfcQVikw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
ES and Java 8. Does it worth the effort ?
Hi , I wander if i should start using Java 8 with my ES cluster. Are there any benefits using Java 8 ? For example : faster GC , faster Java itself .. anything ES would bebefit from Java 8 .. etc Please share your experience. Georgi -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: ES and Java 8. Does it worth the effort ?
Of course is Java 8 worth the effort. Some highlights: - no more permgen OOMs - improved concurrency implementations: http://docs.oracle.com/javase/8/docs/technotes/guides/concurrency/changes8.html - faster hash maps (20%) - lambda expressions are faster than inner classes Some concurrency classes like LongAdder are already included in ES. Java 8 JVM brings also G1 GC to its full extension. G1 GC is not faster than CMS GC, but it scales much better over multicore and reduces stop-the-world pauses to milliseconds. To exploit the full advantage of Java 8, ES would need a large overhaul by rewriting inner classes to lambda style, streams, fork/join pool etc. As long as Lucene does not switch to Java 8, the benefit is only partial. Jörg On Thu, Oct 30, 2014 at 9:01 PM, Georgi Ivanov georgi.r.iva...@gmail.com wrote: Hi , I wander if i should start using Java 8 with my ES cluster. Are there any benefits using Java 8 ? For example : faster GC , faster Java itself .. anything ES would bebefit from Java 8 .. etc Please share your experience. Georgi -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com https://groups.google.com/d/msgid/elasticsearch/9cf82905-63cf-43f2-b14a-de8f21cb4b50%40googlegroups.com?utm_medium=emailutm_source=footer . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups elasticsearch group. To unsubscribe from this group and stop receiving emails from it, send an email to elasticsearch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/elasticsearch/CAKdsXoGS98nt8%2ByPdm14UHR0pvZVzqVVE%3DtQakQhB_8R6arnNw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
