CentOS上的Elasticsearch 1.7.2,8GB RAM,2节点集群。
我们在此处发布了整个日志:http://pastebin.com/zc2iG2q4
当我们查看/ _cluster / health时,我们会看到2个未分配的分片:
{
"cluster_name" : "elasticsearch-prod",
"status" : "yellow", <--------------------------
"timed_out" : false,
"number_of_nodes" : 2,
"number_of_data_nodes" : 2,
"active_primary_shards" : 5,
"active_shards" : 8,
"relocating_shards" : 0,
"initializing_shards" : 0,
"unassigned_shards" : 2, <--------------------------
"delayed_unassigned_shards" : 0,
"number_of_pending_tasks" : 0,
"number_of_in_flight_fetch" : 0
在日志中,我们看到:
marking and sending shard failed due to [failed to create shard]
java.lang.OutOfMemoryError: Java heap space
还有其他错误。
我们唯一与内存相关的配置值是:
indices.fielddata.cache.size: 75%
我们期待:
其他详情:
1)ES_HEAP_SIZE是库存,没有变化。 (此外,环顾四周,目前还不清楚最好改变它...... /etc/init.d/elasticsearch
?)
2)我们的jvm统计数据如下。 (请注意,作为测试,我修改了"/etc/init.d/elasticsearch"
并添加了导出ES_HEAP_SIZE=4g
[代替现有的"export ES_HEAP_SIZE"
行]并重新启动ES ....比较两个相同的节点,一个包含已更改的elasticsearch
文件和一个库存,下面的值看起来相同)
"jvm" : {
"timestamp" : 1448395039780,
"uptime_in_millis" : 228297,
"mem" : {
"heap_used_in_bytes" : 81418872,
"heap_used_percent" : 7,
"heap_committed_in_bytes" : 259522560,
"heap_max_in_bytes" : 1037959168,
"non_heap_used_in_bytes" : 50733680,
"non_heap_committed_in_bytes" : 51470336,
"pools" : {
"young" : {
"used_in_bytes" : 52283368,
"max_in_bytes" : 286326784,
"peak_used_in_bytes" : 71630848,
"peak_max_in_bytes" : 286326784
},
"survivor" : {
"used_in_bytes" : 2726824,
"max_in_bytes" : 35782656,
"peak_used_in_bytes" : 8912896,
"peak_max_in_bytes" : 35782656
},
"old" : {
"used_in_bytes" : 26408680,
"max_in_bytes" : 715849728,
"peak_used_in_bytes" : 26408680,
"peak_max_in_bytes" : 715849728
}
}
},
"threads" : {
"count" : 81,
"peak_count" : 81
},
"gc" : {
"collectors" : {
"young" : {
"collection_count" : 250,
"collection_time_in_millis" : 477
},
"old" : {
"collection_count" : 1,
"collection_time_in_millis" : 22
}
}
},
"buffer_pools" : {
"direct" : {
"count" : 112,
"used_in_bytes" : 20205138,
"total_capacity_in_bytes" : 20205138
},
"mapped" : {
"count" : 0,
"used_in_bytes" : 0,
"total_capacity_in_bytes" : 0
}
}
},
答案 0 :(得分:0)
解决。
此处的关键是错误"java.lang.OutOfMemoryError: Java heap space"
另一天,来自ES docs的另一个宝石:
https://www.elastic.co/guide/en/elasticsearch/guide/current/heap-sizing.html
说(强调我的):
Elasticsearch的默认安装配置为1 GB堆。 对于几乎每个部署,此数字都太小。如果您使用的是默认堆值,则您的群集可能配置不正确。
分辨率:
修改:/etc/sysconfig/elasticsearch
设置ES_HEAP_SIZE=4g
//此系统具有8GB RAM
重启ES
并且tada ....未分配的分片被神奇地分配,并且群集变为绿色。