Hi All,
I'm experiencing search performance degradation when index size is growing.
Eg: For a given query, i'm getting 3500 RPS (Request per second) with 1M
documents on index, whereas with 6M documents on index is giving me 1200
RPS. Each document size on index is average of 500 bytes. Tried with
following different cluster configs, and the behavior is same in both
cases.
Elastic Search version:* 1.2.1*
Cluster 1 configuration: 4 node cluster
2 Routers Nodes: VMs with 4 Core CPU, 4 GB Ram, 20GB disk
2 Data Nodes: Physicals with 32 Core CPU, 198GB Ram (24G allocated to ES
process), 250 GB disk
Cluster 2 configuration: 7 node cluster
2 Routers Nodes: VMs with 4 Core CPU, 4 GB Ram, 20GB disk
2 Data Nodes: VMs with 8 Core CPU, 48GB Ram (24G allocated to ES
process), 250 GB local storage
In addition to search query performance issue, i observed that the Data
nodes CPU is always spiking to 100% on all core.
Any inputs would be greatly appreciated.
Thanks
Gopi
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