# Failed to start elasticsearch 7.16.2 after upgrade from 6.8.8 **URL:** \ **Category:** Elasticsearch\ **Tags:** elastic-stack-machine-learning\ **Created:** [March 31, 2022, 12:42pm UTC](https://discuss.elastic.co/t/failed-to-start-elasticsearch-7-16-2-after-upgrade-from-6-8-8/301192 "2022-03-31T12:42:59Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![msoufiyan](https://avatars.discourse-cdn.com/v4/letter/m/96bed5/32.png) [@msoufiyan](https://discuss.elastic.co/u/msoufiyan)\ **Post date:** [March 31, 2022, 12:42pm UTC](https://discuss.elastic.co/t/failed-to-start-elasticsearch-7-16-2-after-upgrade-from-6-8-8/301192/1 "2022-03-31T12:42:59Z")
hi, i'm new at ELK, i installed the Elasticsearch version 7.16.2 on centos 8 but i get this error so i disabled machine learning functionality with(xpack.ml.enabled: false) ```auto org.elasticsearch.ElasticsearchException: Failure running machine learning native code. This could be due to running on an unsupported OS or distribution, missing OS libraries, or a problem with the temp directory. To bypass this problem by running Elasticsearch without machine learning functionality set [xpack.ml.enabled: false]. at org.elasticsearch.xpack.ml.MachineLearning.createComponents(MachineLearning.java:845) ~[?:?] at org.elasticsearch.node.Node.lambda$new$18(Node.java:733) ~[elasticsearch-7.16.2.jar:7.16.2] at java.util.stream.ReferencePipeline$7$1.accept(ReferencePipeline.java:273) ~[?:?] at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1625) ~[?:?] at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:509) ~[?:?] at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:499) ~[?:?] at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:921) ~[?:?] at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:?] at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:682) ~[?:?] at org.elasticsearch.node.Node.(Node.java:747) ~[elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.node.Node.(Node.java:309) ~[elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Bootstrap$5.(Bootstrap.java:234) ~[elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:234) ~[elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:434) [elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:166) [elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:157) [elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:77) [elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:112) [elasticsearch-cli-7.16.2.jar:7.16.2] at org.elasticsearch.cli.Command.main(Command.java:77) [elasticsearch-cli-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:122) [elasticsearch-7.16.2.jar:7.16.2] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) [elasticsearch-7.16.2.jar:7.16.2] ``` after changing the Elasticsearch.yml file i get another error I try running the `controller` process separately to Elasticsearch with `/usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller --version` i get this on output ~]$ /usr/share/Elasticsearch/modules/x-pack-ml/platform/linux-x86\_64/bin/controller --version ```auto si_signo 4, si_code: 2, si_errno: 0, address: 0x7f76f5f252f8, library: /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/../lib/libMlCore.so, base: 0x7f76f5e01000, normalized address: 0x1242f8 Illegal instruction (core dumped) ``` ```auto Process 505971 (controller) of user 1001 dumped core. Stack trace of thread 505971: #0 0x00007fe53af61c6f raise (libpthread.so.0) #1 0x00007fe53a992f00 _ZN2ml4core12crashHandlerEiP7siginfoPv (libMlCore.so) #2 0x00007fe53af61dd0 __restore_rt (libpthread.so.0) #3 0x00007fe53aa352f8 _ZN2ml4core7CLoggerC2Ev (libMlCore.so) #4 0x00007fe53aa35654 _ZN2ml4core7CLogger8instanceEv (libMlCore.so) #5 0x00007fe53a98c039 n/a (libMlCore.so) #6 0x00007fe53b17eeca call_init.part.0 (ld-linux-x86-64.so.2) #7 0x00007fe53b17efca _dl_init (ld-linux-x86-64.so.2) #8 0x00007fe53b17008a _dl_start_user (ld-linux-x86-64.so.2) ``` what i should do how i can fix this? i try to much but i didn't get any solution. Thanks ALL **Elastic version** 7.16.2 **Java version** $ java --version openjdk 14.0.2 2020-07-14 OpenJDK Runtime Environment (build 14.0.2+12-46) OpenJDK 64-Bit Server VM (build 14.0.2+12-46, mixed mode, sharing) **OS version** $ cat /etc/centos-release CentOS Linux release 8.2.2004 (Core) ---
**Author:** ![droberts195](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/droberts195/32/17692_2.png) [@droberts195](https://discuss.elastic.co/u/droberts195)\ **Post date:** [March 31, 2022, 1:03pm UTC](https://discuss.elastic.co/t/failed-to-start-elasticsearch-7-16-2-after-upgrade-from-6-8-8/301192/2 "2022-03-31T13:03:14Z")
We use SSE4.2 instructions in ML. Does your machine have these? You can tell from the `flags` list in the output of `cat /proc/cpuinfo`. If the list includes `sse4_2` then the problem is something else, but if `sse4_2` is not in the list then that's the reason. ---
**Author:** ![msoufiyan](https://avatars.discourse-cdn.com/v4/letter/m/96bed5/32.png) [@msoufiyan](https://discuss.elastic.co/u/msoufiyan)\ **Post date:** [March 31, 2022, 1:51pm UTC](https://discuss.elastic.co/t/failed-to-start-elasticsearch-7-16-2-after-upgrade-from-6-8-8/301192/3 "2022-03-31T13:51:03Z")
The list doesn't includes sse4\_2 instead i have sse4e, is not the same ? what to do then ? thank you ```auto flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl tsc_reliable nonstop_tsc cpuid pni cx16 x2apic popcnt hypervisor lahf_lm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw vmmcall ``` ---
**Author:** ![droberts195](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/droberts195/32/17692_2.png) [@droberts195](https://discuss.elastic.co/u/droberts195)\ **Post date:** [March 31, 2022, 2:17pm UTC](https://discuss.elastic.co/t/failed-to-start-elasticsearch-7-16-2-after-upgrade-from-6-8-8/301192/4 "2022-03-31T14:17:44Z")
It means either you need to run on a newer machine or leave ML disabled. This is in the docs for version 7: [Machine learning limitations | Machine Learning in the Elastic Stack [7.0] | Elastic](https://www.elastic.co/guide/en/machine-learning/7.0/ml-limitations.html#ml-limitations-sse) There's list of processors that have SSE4.2 instructions here: [SSE4 - Wikipedia](https://en.wikipedia.org/wiki/SSE4#Supporting_CPUs) Roughly speaking, any Intel CPU from the last 12 years will have it. For AMD you'd need a processor from about the last 8 years. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 28, 2022, 2:17pm UTC](https://discuss.elastic.co/t/failed-to-start-elasticsearch-7-16-2-after-upgrade-from-6-8-8/301192/5 "2022-04-28T14:17:51Z")
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