I have installed ElasticSearch v6.2.4 on CentOS 7.0
I have done all necessary configurations. When I run it, I got the following messages in system.
Apr 25 18:24:18 QVELKSRH01 systemd[1]: elasticsearch.service: main process exited, code=exited, status=78/n/a
Apr 25 18:24:18 QVELKSRH01 systemd[1]: Unit elasticsearch.service entered failed state.
Apr 25 18:24:18 QVELKSRH01 systemd[1]: elasticsearch.service failed.
How can I solve the problem? Thanks.
You have installed but have you configured Elasticsearch? What is in your elasticsearch.yml
I have configured elasticsearch.
The content of elasticsearch.yml is as below,
# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
# Before you set out to tweak and tune the configuration, make sure you
# understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster .
#
# Please consult the documentation for further information on configuration opti ons:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
#cluster.name: Elastic Search
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node
#
node.name: QVELKSRH01
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comm a):
#
path.data: /var/lib/elasticsearch
#
# Path to log files:
#
path.logs: /var/log/elasticsearch
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
bootstrp.system_call_filter: false
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 10.51.20.23
#
# Set a custom port for HTTP:
#
http.port: 9200
#
# For more information, consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when new node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.zen.ping.unicast.hosts: [10.51.20.23:9300,""]
#
# Prevent the "split brain" by configuring the majority of nodes (total number o f master-eligible nodes / 2 + 1):
#
#discovery.zen.minimum_master_nodes = 1:
#
# For more information, consult the zen discovery module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: trueWhat's wrong in the configuration?
bootstrp ?
I have corrected it but it keeps starting and the connection (port 9200) is refused. I don't know how to solve.
From systems service log, It is still starting stage for long tim
Apr 27 11:31:35 QVELKSRH01 systemd[1]: Stopping Elasticsearch.
Apr 27 11:31:35 QVELKSRH01 systemd[1]: Started Elasticsearch.e
Apr 27 11:31:35 QVELKSRH01 systemd[1]: Starting Elasticsearch.
From the elasticsearch.log,
[2018-04-27T11:31:35,292][INFO ][o.e.n.Node ] [QVELKSRH01] stopping ...
[2018-04-27T11:31:35,331][INFO ][o.e.n.Node ] [QVELKSRH01] stopped
[2018-04-27T11:31:35,332][INFO ][o.e.n.Node ] [QVELKSRH01] closing ...
[2018-04-27T11:31:35,345][INFO ][o.e.n.Node ] [QVELKSRH01] closed
[2018-04-27T11:31:37,713][INFO ][o.e.n.Node ] [QVELKSRH01] initializing ...
[2018-04-27T11:31:37,787][INFO ][o.e.e.NodeEnvironment ] [QVELKSRH01] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [48.7gb], net total_space [49.9gb], types [rootfs]
[2018-04-27T11:31:37,787][INFO ][o.e.e.NodeEnvironment ] [QVELKSRH01] heap size [1.9gb], compressed ordinary object pointers [true]
[2018-04-27T11:31:37,788][INFO ][o.e.n.Node ] [QVELKSRH01] node name [QVELKSRH01], node ID [FndpeyYfQ6Oo_U-F8aQusg]
[2018-04-27T11:31:37,788][INFO ][o.e.n.Node ] [QVELKSRH01] version[6.2.4], pid[12014], build[ccec39f/2018-04-12T20:37:28.497551Z], OS[Linux/3.10.0-693.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_171/25.171-b11]
[2018-04-27T11:31:37,788][INFO ][o.e.n.Node ] [QVELKSRH01] JVM arguments [-Xms2g, -Xmx2g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.io.tmpdir=/tmp/elasticsearch.EvFo8Q0n, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=/var/lib/elasticsearch, -XX:+PrintGCDetails, -XX:+PrintGCDateStamps, -XX:+PrintTenuringDistribution, -XX:+PrintGCApplicationStoppedTime, -Xloggc:/var/log/elasticsearch/gc.log, -XX:+UseGCLogFileRotation, -XX:NumberOfGCLogFiles=32, -XX:GCLogFileSize=64m, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/etc/elasticsearch]
[2018-04-27T11:31:38,504][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [aggs-matrix-stats]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [analysis-common]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [ingest-common]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [lang-expression]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [lang-mustache]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [lang-painless]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [mapper-extras]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [parent-join]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [percolator]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [rank-eval]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [reindex]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [repository-url]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [transport-netty4]
[2018-04-27T11:31:38,505][INFO ][o.e.p.PluginsService ] [QVELKSRH01] loaded module [tribe]
[2018-04-27T11:31:38,506][INFO ][o.e.p.PluginsService ] [QVELKSRH01] no plugins loaded
[2018-04-27T11:31:40,781][INFO ][o.e.d.DiscoveryModule ] [QVELKSRH01] using discovery type [zen]
[2018-04-27T11:31:41,194][INFO ][o.e.n.Node ] [QVELKSRH01] initialized
[2018-04-27T11:31:41,194][INFO ][o.e.n.Node ] [QVELKSRH01] starting ...
[2018-04-27T11:31:41,391][INFO ][o.e.t.TransportService ] [QVELKSRH01] publish_address {10.51.20.23:9300}, bound_addresses {10.51.20.23:9300}
[2018-04-27T11:31:41,409][INFO ][o.e.b.BootstrapChecks ] [QVELKSRH01] bound or publishing to a non-loopback address, enforcing bootstrap checks
[2018-04-27T11:31:44,492][INFO ][o.e.c.s.MasterService ] [QVELKSRH01] zen-disco-elected-as-master ([0] nodes joined), reason: new_master {QVELKSRH01}{FndpeyYfQ6Oo_U-F8aQusg}{9gzDrupuR5SiVRSJ7we5MA}{10.51.20.23}{10.51.20.23:9300}
[2018-04-27T11:31:44,501][INFO ][o.e.c.s.ClusterApplierService] [QVELKSRH01] new_master {QVELKSRH01}{FndpeyYfQ6Oo_U-F8aQusg}{9gzDrupuR5SiVRSJ7we5MA}{10.51.20.23}{10.51.20.23:9300}, reason: apply cluster state (from master [master {QVELKSRH01}{FndpeyYfQ6Oo_U-F8aQusg}{9gzDrupuR5SiVRSJ7we5MA}{10.51.20.23}{10.51.20.23:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])
[2018-04-27T11:31:44,524][INFO ][o.e.h.n.Netty4HttpServerTransport] [QVELKSRH01] publish_address {10.51.20.23:9200}, bound_addresses {10.51.20.23:9200}
[2018-04-27T11:31:44,525][INFO ][o.e.n.Node ] [QVELKSRH01] started
[2018-04-27T11:31:44,537][INFO ][o.e.g.GatewayService ] [QVELKSRH01] recovered [0] indices into cluster_state
Run that from the machine where elasticsearch has been started:
curl 10.51.20.23:9200
It shows some output with attributes.
I just wonder why I can't access through web browser
After this, what steps should I follow then? I'm a bit getting lost.
Thanks.
So everything is working well on elasticsearch side as the logs suggest.
May be look if you have a proxy defined in your browser, a firewall somewhere...
And if it does not work, share what you are exactly doing in the browser. Which URL?
I try to access it via http://10.51.20.23:9200 in the same network bypassing proxy and firewall.
Nothing is displayed.
I can't tell. If elasticsearch is working with:
curl 10.51.20.23:9200
Then you have a problem on your end. Double check that you can access this machine from your laptop by like doing a telnet or curl from your machine on port 9200.
I can ping it but unable to telnet it via port 9200.
Any setting also needs to be changed?
@thompsonlau as @dadoonet has kindly pointed out, are you able to curl 10.51.20.23:9200 ?
Found the problem. The CentOS firewall block it.
I now can access the page via web browser. Then what part of procedures should I move on to configure elasticsearch?
from here go forth with https://www.elastic.co/guide/en/elasticsearch/reference/current/_exploring_your_cluster.html
OK thanks. Actually will ElasticSearch goes with GUI? At which step I can access UI?
Ensure Kibana is installed, started, listening on port 5601: https://www.elastic.co/guide/en/kibana/current/getting-started.html
Then and depending on your setup visit http://10.51.20.23:5601
Isn't what I said?
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