Elasticsearch: Node suddenly stops working with no shards available exception












0















I have a single node elk installation which was working fine up until I discovered that kibana was unable to connect to elasticsearch.



systemctl status elasticsearch

● elasticsearch.service - Elasticsearch

   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: enabled)

   Active: active (running) since Fri 2018-12-28 14:21:33 EET; 5min ago

     Docs: http://www.elastic.co

 Main PID: 1193 (java)

    Tasks: 87

   Memory: 3.0G

      CPU: 5min 39.675s

   CGroup: /system.slice/elasticsearch.service

           ├─1193 /usr/bin/java -Xms2g -Xmx2g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=

           └─1548 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller


but here is a gist with the exceptions;



for some weird reason after a restart the node seems to recover.



How can this behavior be explained?






elasticsearch







share|improve this question























  • Can you successfully run any requests against Elasticsearch? Like maybe localhost:9200/_cat/nodes?

    – skylerl
    Dec 28 '18 at 15:49











  • Looks like the node with ELK installed experienced a crash and all shards have been unassigned. The shards re-assigned once the node was healthy again most likely fixed by the restart. Check in the logs if you see errors concerning ELK crash

    – ben5556
    Dec 29 '18 at 0:48


















0















I have a single node elk installation which was working fine up until I discovered that kibana was unable to connect to elasticsearch.



systemctl status elasticsearch

● elasticsearch.service - Elasticsearch

   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: enabled)

   Active: active (running) since Fri 2018-12-28 14:21:33 EET; 5min ago

     Docs: http://www.elastic.co

 Main PID: 1193 (java)

    Tasks: 87

   Memory: 3.0G

      CPU: 5min 39.675s

   CGroup: /system.slice/elasticsearch.service

           ├─1193 /usr/bin/java -Xms2g -Xmx2g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=

           └─1548 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller


but here is a gist with the exceptions;



for some weird reason after a restart the node seems to recover.



How can this behavior be explained?






elasticsearch







share|improve this question























  • Can you successfully run any requests against Elasticsearch? Like maybe localhost:9200/_cat/nodes?

    – skylerl
    Dec 28 '18 at 15:49











  • Looks like the node with ELK installed experienced a crash and all shards have been unassigned. The shards re-assigned once the node was healthy again most likely fixed by the restart. Check in the logs if you see errors concerning ELK crash

    – ben5556
    Dec 29 '18 at 0:48
















0












0








0








I have a single node elk installation which was working fine up until I discovered that kibana was unable to connect to elasticsearch.



systemctl status elasticsearch

● elasticsearch.service - Elasticsearch

   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: enabled)

   Active: active (running) since Fri 2018-12-28 14:21:33 EET; 5min ago

     Docs: http://www.elastic.co

 Main PID: 1193 (java)

    Tasks: 87

   Memory: 3.0G

      CPU: 5min 39.675s

   CGroup: /system.slice/elasticsearch.service

           ├─1193 /usr/bin/java -Xms2g -Xmx2g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=

           └─1548 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller


but here is a gist with the exceptions;



for some weird reason after a restart the node seems to recover.



How can this behavior be explained?






elasticsearch







share|improve this question














I have a single node elk installation which was working fine up until I discovered that kibana was unable to connect to elasticsearch.



systemctl status elasticsearch

● elasticsearch.service - Elasticsearch

   Loaded: loaded (/usr/lib/systemd/system/elasticsearch.service; enabled; vendor preset: enabled)

   Active: active (running) since Fri 2018-12-28 14:21:33 EET; 5min ago

     Docs: http://www.elastic.co

 Main PID: 1193 (java)

    Tasks: 87

   Memory: 3.0G

      CPU: 5min 39.675s

   CGroup: /system.slice/elasticsearch.service

           ├─1193 /usr/bin/java -Xms2g -Xmx2g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+AlwaysPreTouch -Xss1m -Djava.awt.headless=true -Dfile.encoding=

           └─1548 /usr/share/elasticsearch/modules/x-pack-ml/platform/linux-x86_64/bin/controller


but here is a gist with the exceptions;



for some weird reason after a restart the node seems to recover.



How can this behavior be explained?






elasticsearch




elasticsearch






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Dec 28 '18 at 12:52









pkaramolpkaramol

1,98411442




1,98411442













  • Can you successfully run any requests against Elasticsearch? Like maybe localhost:9200/_cat/nodes?

    – skylerl
    Dec 28 '18 at 15:49











  • Looks like the node with ELK installed experienced a crash and all shards have been unassigned. The shards re-assigned once the node was healthy again most likely fixed by the restart. Check in the logs if you see errors concerning ELK crash

    – ben5556
    Dec 29 '18 at 0:48





















  • Can you successfully run any requests against Elasticsearch? Like maybe localhost:9200/_cat/nodes?

    – skylerl
    Dec 28 '18 at 15:49











  • Looks like the node with ELK installed experienced a crash and all shards have been unassigned. The shards re-assigned once the node was healthy again most likely fixed by the restart. Check in the logs if you see errors concerning ELK crash

    – ben5556
    Dec 29 '18 at 0:48



















Can you successfully run any requests against Elasticsearch? Like maybe localhost:9200/_cat/nodes?

– skylerl
Dec 28 '18 at 15:49





Can you successfully run any requests against Elasticsearch? Like maybe localhost:9200/_cat/nodes?

– skylerl
Dec 28 '18 at 15:49













Looks like the node with ELK installed experienced a crash and all shards have been unassigned. The shards re-assigned once the node was healthy again most likely fixed by the restart. Check in the logs if you see errors concerning ELK crash

– ben5556
Dec 29 '18 at 0:48







Looks like the node with ELK installed experienced a crash and all shards have been unassigned. The shards re-assigned once the node was healthy again most likely fixed by the restart. Check in the logs if you see errors concerning ELK crash

– ben5556
Dec 29 '18 at 0:48














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