elk(單機)安裝過程中遇到的問題及解決方法
阿新 • • 發佈:2019-01-03
1、記憶體不夠
Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000006c5330000, 4207738880, 0) failed; error='Cannot allocate memory' (errno=12)
## There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 2103864440 bytes for committing reserved memory.
# An error report file with more information is saved as:
# /home/user/hs_err_pid1375.log
elk預設啟動需要2g的記憶體,可以根據本機環境調整
-Xms2g
-Xmx2g
2、其他主機不可訪問
curl: connect to address : Connection refused調整防火牆
vi /etc/sysconfig/iptables
-A INPUT -m state --state NEW -m tcp -p tcp --dport 9200 -j ACCEPTservice iptables restart
調整elk配置
vi ./elasticsearch-5.1.1/config/elasticsearch.ymlnetwork.host: 0.0.0.0
3、max file descriptor
max file descriptors [4096] for elasticsearch process is too low, increase to at least [65536]
vi /etc/security/limits.conf
* hard nofile 65536
* soft nofile 65536
4、max number of threads
max number of threads [1024] for user [user] is too low, increase to at least [2048]vi /etc/security/limits.d/90-nproc.conf
* soft nproc 2048
5、max virtual memory areas
1 sysctl -w vm.max_map_count=262144
2 vi /etc/sysctl.conf
vm.max_map_count=262144
6、設定/etc/security/limits.d/90-nproc.conf後,仍報錯
ERROR: bootstrap checks failed
max number of threads [1876] for user [work] is too low, increase to at least [2048]
查詢虛擬機器記憶體,如果記憶體較低,就會影響實際的最大執行緒數