# Elasticsearch connecition

**URL:** <https://discuss.elastic.co/t/elasticsearch-connecition/65359>\
**Category:** Elasticsearch\
**Created:** [November 8, 2016, 1:53pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359 "2016-11-08T13:53:52Z")\
**Posts on this page:** 14\
**Page:** 1

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 8, 2016, 1:53pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/1 "2016-11-08T13:53:52Z")

</div>

Hi,  
I installed ES-5.0.0 and Kibana-5.0.0. I started ES. It worked true.

After I installed another programs (X-PACK, PHP CLIENT etc.) and I restart ES but it is not working.

My ES logs:

```
[2016-11-08T16:29:21,432][ERROR][o.e.b.Bootstrap] [NchqMHF] node validation exception
bootstrap checks failed
max number of threads [1024] for user [elasticsearch] likely too low, increase to at least [2048]
[2016-11-08T16:29:21,441][INFO][o.e.n.Node] [NchqMHF] stopping ...
[2016-11-08T16:29:21,481][INFO][o.e.n.Node] [NchqMHF] stopped
[2016-11-08T16:29:21,481][INFO][o.e.n.Node] [NchqMHF] closing ...
[2016-11-08T16:29:21,490][INFO][o.e.n.Node] [NchqMHF] closed
[2016-11-08T16:34:18,876][WARN][o.e.b.JNANatives] unable to install syscall filter: 
java.lang.UnsupportedOperationException: seccomp unavailable: CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed
    at org.elasticsearch.bootstrap.Seccomp.linuxImpl(Seccomp.java:361) ~[elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Seccomp.init(Seccomp.java:630) ~[elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.JNANatives.trySeccomp(JNANatives.java:215) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Natives.trySeccomp(Natives.java:99) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:101) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:155) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:286) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:112) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:103) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.cli.Command.main(Command.java:62) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:73) [elasticsearch-5.0.0.jar:5.0.0]
```

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 8, 2016, 1:55pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/2 "2016-11-08T13:55:03Z")

</div>

and more logs...

```
 [2016-11-08T16:34:18,995][INFO][o.e.n.Node] [] initializing ...
    [2016-11-08T16:34:19,078][INFO][o.e.e.NodeEnvironment] [NchqMHF] using [1] data paths, mounts [[/ (/dev/mapper/VolGroup-lv_root)]], net usable_space [31.1gb], net total_space [49gb], spins? [no], types [ext4]
    [2016-11-08T16:34:19,079][INFO][o.e.e.NodeEnvironment] [NchqMHF] heap size [1.9gb], compressed ordinary object pointers [true]
    [2016-11-08T16:34:19,097][INFO][o.e.n.Node] [NchqMHF] node name [NchqMHF] derived from node ID; set [node.name] to override
    [2016-11-08T16:34:19,100][INFO][o.e.n.Node] [NchqMHF] version[5.0.0], pid[4139], build[253032b/2016-10-26T04:37:51.531Z], OS[Linux/2.6.32-642.6.2.el6.x86_64/amd64], JVM[Oracle Corporation/OpenJDK 64-Bit Server VM/1.8.0_111/25.111-b15]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [aggs-matrix-stats]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [ingest-common]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-expression]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-groovy]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-mustache]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-painless]
    [2016-11-08T16:34:20,641][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [percolator]
    [2016-11-08T16:34:20,642][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [reindex]
    [2016-11-08T16:34:20,642][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [transport-netty3]
    [2016-11-08T16:34:20,642][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [transport-netty4]
    [2016-11-08T16:34:20,642][INFO][o.e.p.PluginsService] [NchqMHF] loaded plugin [x-pack]
    [2016-11-08T16:34:23,264][INFO][o.e.n.Node] [NchqMHF] initialized
    [2016-11-08T16:34:23,265][INFO][o.e.n.Node] [NchqMHF] starting ...
    [2016-11-08T16:34:23,523][INFO][o.e.t.TransportService] [NchqMHF] publish_address {127.0.0.1:9300}, bound_addresses {[::1]:9300}, {127.0.0.1:9300}, {[::2]:9300}
    [2016-11-08T16:34:23,528][INFO][o.e.b.BootstrapCheck] [NchqMHF] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
```

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 8, 2016, 1:59pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/3 "2016-11-08T13:59:09Z")

</div>

I tried to connect from the `http://localhost:9200/` but not connected.

---

<div class="post-metadata">

**Author:** ![evert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/evert/32/8143_2.png) [@evert](https://discuss.elastic.co/u/evert)\
**Post date:** [November 8, 2016, 2:11pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/4 "2016-11-08T14:11:16Z")

</div>

Did you use the _user_ and _password_ standard for the x-pack to access your ES server with _[http://localhost:9200](http://localhost:9200)_?

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [November 8, 2016, 2:15pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/5 "2016-11-08T14:15:02Z")

</div>

+1

All logs are correct.

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 8, 2016, 2:15pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/6 "2016-11-08T14:15:31Z")

</div>

yes I used.

username:elastic  
passw:changeme

and after I changed the password on kibana and it did not work

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 8, 2016, 2:22pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/7 "2016-11-08T14:22:52Z")

</div>

When I start ES it worked true.  
I tried connect:

`http://localhost:9200/`

It didn't connect. I don't understand.

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [November 8, 2016, 2:38pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/8 "2016-11-08T14:38:28Z")

</div>

Can we have the rest of your logs please?

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 8, 2016, 2:42pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/9 "2016-11-08T14:42:37Z")

</div>

ok. I cleaned my log file and I restart ES-5.0.0.

My logs:

```
[2016-11-08T17:41:07,370][WARN][o.e.b.JNANatives] unable to install syscall filter: 
java.lang.UnsupportedOperationException: seccomp unavailable: CONFIG_SECCOMP not compiled into kernel, CONFIG_SECCOMP and CONFIG_SECCOMP_FILTER are needed
    at org.elasticsearch.bootstrap.Seccomp.linuxImpl(Seccomp.java:361) ~[elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Seccomp.init(Seccomp.java:630) ~[elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.JNANatives.trySeccomp(JNANatives.java:215) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Natives.trySeccomp(Natives.java:99) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.initializeNatives(Bootstrap.java:101) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:155) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:286) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:112) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:103) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.cli.Command.main(Command.java:62) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:80) [elasticsearch-5.0.0.jar:5.0.0]
    at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:73) [elasticsearch-5.0.0.jar:5.0.0]
[2016-11-08T17:41:07,473][INFO][o.e.n.Node] [] initializing ...
[2016-11-08T17:41:07,555][INFO][o.e.e.NodeEnvironment] [NchqMHF] using [1] data paths, mounts [[/ (/dev/mapper/VolGroup-lv_root)]], net usable_space [31.1gb], net total_space [49gb], spins? [no], types [ext4]
[2016-11-08T17:41:07,555][INFO][o.e.e.NodeEnvironment] [NchqMHF] heap size [1.9gb], compressed ordinary object pointers [true]
[2016-11-08T17:41:07,567][INFO][o.e.n.Node] [NchqMHF] node name [NchqMHF] derived from node ID; set [node.name] to override
[2016-11-08T17:41:07,568][INFO][o.e.n.Node] [NchqMHF] version[5.0.0], pid[5151], build[253032b/2016-10-26T04:37:51.531Z], OS[Linux/2.6.32-642.6.2.el6.x86_64/amd64], JVM[Oracle Corporation/OpenJDK 64-Bit Server VM/1.8.0_111/25.111-b15]
[2016-11-08T17:41:08,902][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [aggs-matrix-stats]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [ingest-common]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-expression]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-groovy]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-mustache]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [lang-painless]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [percolator]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [reindex]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [transport-netty3]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded module [transport-netty4]
[2016-11-08T17:41:08,903][INFO][o.e.p.PluginsService] [NchqMHF] loaded plugin [x-pack]
[2016-11-08T17:41:11,282][INFO][o.e.n.Node] [NchqMHF] initialized
[2016-11-08T17:41:11,282][INFO][o.e.n.Node] [NchqMHF] starting ...
[2016-11-08T17:41:11,540][INFO][o.e.t.TransportService] [NchqMHF] publish_address {127.0.0.1:9300}, bound_addresses {[::1]:9300}, {127.0.0.1:9300}, {[::2]:9300}
[2016-11-08T17:41:11,544][INFO][o.e.b.BootstrapCheck] [NchqMHF] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
[2016-11-08T17:41:11,546][ERROR][o.e.b.Bootstrap] [NchqMHF] node validation exception
bootstrap checks failed
max number of threads [1024] for user [elasticsearch] likely too low, increase to at least [2048]
[2016-11-08T17:41:11,548][INFO][o.e.n.Node] [NchqMHF] stopping ...
[2016-11-08T17:41:11,584][INFO][o.e.n.Node] [NchqMHF] stopped
[2016-11-08T17:41:11,584][INFO][o.e.n.Node] [NchqMHF] closing ...
[2016-11-08T17:41:11,593][INFO][o.e.n.Node] [NchqMHF] closed
```

---

<div class="post-metadata">

**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [November 8, 2016, 2:44pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/10 "2016-11-08T14:44:43Z")

</div>

You need to fix that:

```auto
[2016-11-08T17:41:11,546][ERROR][o.e.b.Bootstrap] [NchqMHF] node validation exception
bootstrap checks failed
max number of threads [1024] for user [elasticsearch] likely too low, increase to at least [2048]

```

Look at the doc. It explains all that.

---

<div class="post-metadata">

**Author:** ![evert](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/evert/32/8143_2.png) [@evert](https://discuss.elastic.co/u/evert)\
**Post date:** [November 8, 2016, 4:20pm UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/11 "2016-11-08T16:20:48Z")

</div>

@dadoonet is right...

Check [here](https://www.elastic.co/guide/en/elasticsearch/reference/5.0/_maximum_number_of_threads_check.html).

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 9, 2016, 8:20am UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/15 "2016-11-09T08:20:12Z")

</div>

I installed ES-5.0.0 rpm package. So I have to use system configuration file. ([https://www.elastic.co/guide/en/elasticsearch/reference/master/setting-system-settings.html#ulimit](http://systemconf))

It says,

> When using the RPM or Debian packages, system settings and environment variables can be specified in the system configuration file, which is located in:

> RPM

> /etc/sysconfig/elasticsearch

> Debian

> /etc/default/elasticsearch

> However, for systems which uses systemd, system limits need to be specified via systemd.

elasticsearch file: (/etc/sysconfig/elasticsearch)

```
################################
# Elasticsearch
################################

# Elasticsearch home directory
#ES_HOME=/usr/share/elasticsearch

# Elasticsearch Java path
#JAVA_HOME=

# Elasticsearch configuration directory
#CONF_DIR=/etc/elasticsearch

# Elasticsearch data directory
#DATA_DIR=/var/lib/elasticsearch

# Elasticsearch logs directory
#LOG_DIR=/var/log/elasticsearch

# Elasticsearch PID directory
#PID_DIR=/var/run/elasticsearch

# Additional Java OPTS
#ES_JAVA_OPTS=

# Configure restart on package upgrade (true, every other setting will lead to not restarting)
#RESTART_ON_UPGRADE=true

################################
# Elasticsearch service
################################

# SysV init.d
#
# When executing the init script, this user will be used to run the elasticsearch service.
# The default value is 'elasticsearch' and is declared in the init.d file.
# Note that this setting is only used by the init script. If changed, make sure that
# the configured user can read and write into the data, work, plugins and log directories.
# For systemd service, the user is usually configured in file /usr/lib/systemd/system/elasticsearch.service
#ES_USER=elasticsearch
#ES_GROUP=elasticsearch

# The number of seconds to wait before checking if Elasticsearch started successfully as a daemon process
ES_STARTUP_SLEEP_TIME=5

################################
# System properties
################################

# Specifies the maximum file descriptor number that can be opened by this process
# When using Systemd, this setting is ignored and the LimitNOFILE defined in
# /usr/lib/systemd/system/elasticsearch.service takes precedence
#MAX_OPEN_FILES=65536

# The maximum number of bytes of memory that may be locked into RAM
# Set to "unlimited" if you use the 'bootstrap.memory_lock: true' option
# in elasticsearch.yml.
# When using Systemd, the LimitMEMLOCK property must be set
# in /usr/lib/systemd/system/elasticsearch.service
#MAX_LOCKED_MEMORY=unlimited

# Maximum number of VMA (Virtual Memory Areas) a process can own
# When using Systemd, this setting is ignored and the 'vm.max_map_count'
# property is set at boot time in /usr/lib/sysctl.d/elasticsearch.conf
#MAX_MAP_COUNT=262144

```

**I did not see anything wrong here. What is the problem?**

---

<div class="post-metadata">

**Author:** ![Hilal](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/hilal/32/7684_2.png) [@Hilal](https://discuss.elastic.co/u/Hilal)\
**Post date:** [November 9, 2016, 10:50am UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/16 "2016-11-09T10:50:47Z")

</div>

I changed my elasticsearch.yml file.  
I had an old elasticsearch.yml file(ES-2.4.1).  
I replace my ES-2.4.1 elasticsearch.yml file with ES-5.0.0 elasticsearch.yml.  
It connected . (`http://localhost:9200`)  
I think The problem is in the elastic search.yml file

Problem solved  
Thanks anyway.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [December 7, 2016, 10:50am UTC](https://discuss.elastic.co/t/elasticsearch-connecition/65359/17 "2016-12-07T10:50:51Z")

</div>

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