# JDK 7 Issues Question **URL:** \ **Category:** Elasticsearch\ **Created:** [March 3, 2014, 9:49pm UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122 "2014-03-03T21:49:52Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![roytmana](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/roytmana/32/44855_2.png) [@roytmana](https://discuss.elastic.co/u/roytmana)\ **Post date:** [March 3, 2014, 9:49pm UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/1 "2014-03-03T21:49:52Z")
Few times on this newsgroups I noticed some serious issues are mentioned when running ES under JDK7 update greater than u25 and that it should be fixed in u60. Could anyone in the know elaborate on the issue. What's its nature, does it occur on all platforms (our deployment target is 64bit Server JVM JDK 17u51 on Centos 6 ) and whether it affects 1.0.x builds Thank you, Alex -- 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/c09976c0-9e0e-4f61-84e8-9281c7efee7f%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/c09976c0-9e0e-4f61-84e8-9281c7efee7f%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\ **Post date:** [March 3, 2014, 10:16pm UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/2 "2014-03-03T22:16:45Z")
Elasticsearch is using Lucene. So reports that are related to Lucene crashes are relevant to ES. I know of this one [https://issues.apache.org/jira/browse/LUCENE-5212](https://issues.apache.org/jira/browse/LUCENE-5212) [https://bugs.openjdk.java.net/browse/JDK-8024830](https://bugs.openjdk.java.net/browse/JDK-8024830) Reported platform is Linux x86. It affects all ES builds, also 1.0.x in case of using a runtime Java \> 7u25 (7u40, 7u51) The bug is fixed. 7u60 with fix is scheduled for May 2014. Jörg On Mon, Mar 3, 2014 at 10:49 PM, AlexR [roytmana@gmail.com](mailto:roytmana@gmail.com) wrote: > Few times on this newsgroups I noticed some serious issues are mentioned > when running ES under JDK7 update greater than u25 and that it should be > fixed in u60. > Could anyone in the know elaborate on the issue. What's its nature, does > it occur on all platforms (our deployment target is 64bit Server JVM JDK > 17u51 on Centos 6 ) and whether it affects 1.0.x builds > > Thank you, > Alex > > -- > 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/c09976c0-9e0e-4f61-84e8-9281c7efee7f%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/c09976c0-9e0e-4f61-84e8-9281c7efee7f%40googlegroups.com) > . > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoEOryPpFZC5kUudmh16bvY%2B0-Vuw4WN6TgfGE8Sb8WUdg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoEOryPpFZC5kUudmh16bvY%2B0-Vuw4WN6TgfGE8Sb8WUdg%40mail.gmail.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [March 3, 2014, 10:32pm UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/3 "2014-03-03T22:32:31Z")
I did some stress tests with different versions of the JDK using a test cluster running on VMs (which only contains a smaller amount of data than our production cluster), and I was never able to uncover any issues. However, since I do not like getting called in the middle of the night to fix a machine, I simply install 7u25. 🙂 Cheers, Ivan On Mon, Mar 3, 2014 at 2:16 PM, [joergprante@gmail.com](mailto:joergprante@gmail.com) \<[joergprante@gmail.com](mailto:joergprante@gmail.com) > wrote: > Elasticsearch is using Lucene. So reports that are related to Lucene > crashes are relevant to ES. > > I know of this one > > [[LUCENE-5212] java 7u40 causes sigsegv and corrupt term vectors - ASF JIRA](https://issues.apache.org/jira/browse/LUCENE-5212) > > [Loading...](https://bugs.openjdk.java.net/browse/JDK-8024830) > > Reported platform is Linux x86. It affects all ES builds, also 1.0.x in > case of using a runtime Java \> 7u25 (7u40, 7u51) > > The bug is fixed. 7u60 with fix is scheduled for May 2014. > > Jörg > > On Mon, Mar 3, 2014 at 10:49 PM, AlexR [roytmana@gmail.com](mailto:roytmana@gmail.com) wrote: > > > Few times on this newsgroups I noticed some serious issues are mentioned > > when running ES under JDK7 update greater than u25 and that it should be > > fixed in u60. > > Could anyone in the know elaborate on the issue. What's its nature, does > > it occur on all platforms (our deployment target is 64bit Server JVM JDK > > 17u51 on Centos 6 ) and whether it affects 1.0.x builds > > > > Thank you, > > Alex > > > > -- > > 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > > To view this discussion on the web visit > > [https://groups.google.com/d/msgid/elasticsearch/c09976c0-9e0e-4f61-84e8-9281c7efee7f%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/c09976c0-9e0e-4f61-84e8-9281c7efee7f%40googlegroups.com) > > . > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). > > -- > 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoEOryPpFZC5kUudmh16bvY%2B0-Vuw4WN6TgfGE8Sb8WUdg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoEOryPpFZC5kUudmh16bvY%2B0-Vuw4WN6TgfGE8Sb8WUdg%40mail.gmail.com) > . > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CALY%3DcQB-8obkZfExfBpaCHoggzXeFMG3fOTF%3DyN\_HJ\_-gnisxg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CALY%3DcQB-8obkZfExfBpaCHoggzXeFMG3fOTF%3DyN_HJ_-gnisxg%40mail.gmail.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![brian\_yoder](https://avatars.discourse-cdn.com/v4/letter/b/f1d935/32.png) [@brian\_yoder](https://discuss.elastic.co/u/brian_yoder)\ **Post date:** [March 4, 2014, 11:52pm UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/4 "2014-03-04T23:52:18Z")
Jörg, Just to clarify: The links below point to OpenJDK, not to the Oracle JDK? I only ask because the version and build numbers seem to track those in Oracle's JDK. For what it's worth, I am currently running ES 1.0.0 GA with the latest Oracle JDK 7u51 on Mac Mavericks and on Linux, and I haven't seen any issues so far. Brian On Monday, March 3, 2014 5:16:45 PM UTC-5, Jörg Prante wrote: > Elasticsearch is using Lucene. So reports that are related to Lucene > crashes are relevant to ES. > > I know of this one > > [[LUCENE-5212] java 7u40 causes sigsegv and corrupt term vectors - ASF JIRA](https://issues.apache.org/jira/browse/LUCENE-5212) > > [Loading...](https://bugs.openjdk.java.net/browse/JDK-8024830) > > Reported platform is Linux x86. It affects all ES builds, also 1.0.x in > case of using a runtime Java \> 7u25 (7u40, 7u51) > > The bug is fixed. 7u60 with fix is scheduled for May 2014. > > Jörg -- 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Ivan](https://avatars.discourse-cdn.com/v4/letter/i/df788c/32.png) [@Ivan](https://discuss.elastic.co/u/Ivan)\ **Post date:** [March 5, 2014, 12:29am UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/5 "2014-03-05T00:29:38Z")
The vectorization issue is not constrained to OpenJDK, and is still present in 7u45: [https://twitter.com/thetaph1/status/423523708708208640](https://twitter.com/thetaph1/status/423523708708208640) On Tue, Mar 4, 2014 at 3:52 PM, InquiringMind [brian.from.fl@gmail.com](mailto:brian.from.fl@gmail.com)wrote: > Jörg, > > Just to clarify: The links below point to OpenJDK, not to the Oracle JDK? > I only ask because the version and build numbers seem to track those in > Oracle's JDK. > > For what it's worth, I am currently running ES 1.0.0 GA with the latest > Oracle JDK 7u51 on Mac Mavericks and on Linux, and I haven't seen any > issues so far. > > Brian > > On Monday, March 3, 2014 5:16:45 PM UTC-5, Jörg Prante wrote: > > > Elasticsearch is using Lucene. So reports that are related to Lucene > > crashes are relevant to ES. > > > > I know of this one > > > > [[LUCENE-5212] java 7u40 causes sigsegv and corrupt term vectors - ASF JIRA](https://issues.apache.org/jira/browse/LUCENE-5212) > > > > [Loading...](https://bugs.openjdk.java.net/browse/JDK-8024830) > > > > Reported platform is Linux x86. It affects all ES builds, also 1.0.x in > > case of using a runtime Java \> 7u25 (7u40, 7u51) > > > > The bug is fixed. 7u60 with fix is scheduled for May 2014. > > > > Jörg > > -- > 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com?utm_medium=email&utm_source=footer) > . > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CALY%3DcQAsEZRg0%3Dnp8BcReLLH7ZHTn4ffMSSn1h75gaTX%2BsgbwA%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CALY%3DcQAsEZRg0%3Dnp8BcReLLH7ZHTn4ffMSSn1h75gaTX%2BsgbwA%40mail.gmail.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![jprante](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jprante/32/44941_2.png) [@jprante](https://discuss.elastic.co/u/jprante)\ **Post date:** [March 5, 2014, 8:23am UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/6 "2014-03-05T08:23:50Z")
Brian, Oracle JDK 7 is based on OpenJDK 7. OpenJDK 7 is the reference implementation. OpenJDK is free software, open source. For us being ordinary mortals, it is not possible to get involved into Oracle proprietary projects and release cycles. Oracle modifies the OpenJDK source code somehow and releases binary packages. Jörg On Wed, Mar 5, 2014 at 12:52 AM, InquiringMind [brian.from.fl@gmail.com](mailto:brian.from.fl@gmail.com)wrote: > Jörg, > > Just to clarify: The links below point to OpenJDK, not to the Oracle JDK? > I only ask because the version and build numbers seem to track those in > Oracle's JDK. > > For what it's worth, I am currently running ES 1.0.0 GA with the latest > Oracle JDK 7u51 on Mac Mavericks and on Linux, and I haven't seen any > issues so far. > > Brian > > On Monday, March 3, 2014 5:16:45 PM UTC-5, Jörg Prante wrote: > > > Elasticsearch is using Lucene. So reports that are related to Lucene > > crashes are relevant to ES. > > > > I know of this one > > > > [[LUCENE-5212] java 7u40 causes sigsegv and corrupt term vectors - ASF JIRA](https://issues.apache.org/jira/browse/LUCENE-5212) > > > > [Loading...](https://bugs.openjdk.java.net/browse/JDK-8024830) > > > > Reported platform is Linux x86. It affects all ES builds, also 1.0.x in > > case of using a runtime Java \> 7u25 (7u40, 7u51) > > > > The bug is fixed. 7u60 with fix is scheduled for May 2014. > > > > Jörg > > -- > 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com)[https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/5d1295ea-4fc9-4e63-8b97-308811af6320%40googlegroups.com?utm_medium=email&utm_source=footer) > . > > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- 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+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/CAKdsXoH059MJ%2BCJn9Q9Ndo2mzt4A3K%3D2FgVZ3WGCH\_ZjzZf5Sg%40mail.gmail.com](https://groups.google.com/d/msgid/elasticsearch/CAKdsXoH059MJ%2BCJn9Q9Ndo2mzt4A3K%3D2FgVZ3WGCH_ZjzZf5Sg%40mail.gmail.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 1:45am UTC](https://discuss.elastic.co/t/jdk-7-issues-question/16122/7 "2017-07-06T01:45:40Z")