调优

修改堆内存大小

cd /elk/software/es7/elasticsearch-7.17.5
cat config/jvm.options
-Xms1g
-Xmx1g

# 查看
# ./jdk/bin/jhsdb jmap --heap --pid $(./jdk/bin/jps | awk '/Elastic/{print $1}') | grep MaxHeapSize
./jdk/bin/jhsdb jmap --heap --pid <xxxx>
Heap Configuration:
   ...
   MaxHeapSize              = 1073741824 (1024.0MB)
   ...