Elasticsearch
ElasticSearch 延遲索引
我目前有以下設置:
syslog-ng 伺服器 –> Logstash –> ElasticSearch
syslog-ng 伺服器是負載平衡的,並寫入到 SAN 位置,Logstash 只是在該位置跟踪文件並將它們發送到 ES。我目前正在接收大約 1,300 個事件/秒到 syslog 集群的網路日誌。我遇到的問題是日誌在 ES 中實際可搜尋的時間逐漸延遲。當我啟動集群(4 個節點)時,它已經死了。然後落後幾分鐘,現在 4 天后落後了約 35 分鐘。我可以確認日誌正在 syslog-ng 伺服器上實時寫入,我還可以確認我的 4 個使用相同概念但不同 Logstash 實例的其他索引保持最新。但是,它們要低得多(約 500 個事件/秒)。
似乎正在讀取平面文件的 Logstash 實例無法跟上。我已經將這些文件分離了一次並生成了 2 個 Logstash 實例以提供幫助,但我仍然落後。
任何幫助將不勝感激。
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典型的輸入是 ASA 日誌,主要是拒絕和 VPN 連接
Jan 7 00:00:00 firewall1.domain.com Jan 06 2016 23:00:00 firewall1 : %ASA-1-106023: Deny udp src outside:192.168.1.1/22245 dst DMZ_1:10.5.1.1/33434 by access-group "acl_out" [0x0, 0x0] Jan 7 00:00:00 firewall2.domain.com %ASA-1-106023: Deny udp src console_1:10.1.1.2/28134 dst CUSTOMER_094:2.2.2.2/514 by access-group "acl_2569" [0x0, 0x0]
這是我的 Logstash 配置。
input { file { type => "network-syslog" exclude => ["*.gz"] start_position => "end" path => [ "/location1/*.log","/location2/*.log","/location2/*.log"] sincedb_path => "/etc/logstash/.sincedb-network" } } filter { grok { overwrite => [ "message", "host" ] patterns_dir => "/etc/logstash/logstash-2.1.1/vendor/bundle/jruby/1.9/gems/logstash-patterns-core-2.0.2/patterns" match => [ "message", "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:host} %%{CISCOTAG:ciscotag}: %{GREEDYDATA:message}", "message", "%{SYSLOGTIMESTAMP:syslog_timestamp} %{SYSLOGHOST:host} %{GREEDYDATA:message}" ] } grok { match => [ "message", "%{CISCOFW106001}", "message", "%{CISCOFW106006_106007_106010}", "message", "%{CISCOFW106014}", "message", "%{CISCOFW106015}", "message", "%{CISCOFW106021}", "message", "%{CISCOFW106023}", "message", "%{CISCOFW106100}", "message", "%{CISCOFW110002}", "message", "%{CISCOFW302010}", "message", "%{CISCOFW302013_302014_302015_302016}", "message", "%{CISCOFW302020_302021}", "message", "%{CISCOFW305011}", "message", "%{CISCOFW313001_313004_313008}", "message", "%{CISCOFW313005}", "message", "%{CISCOFW402117}", "message", "%{CISCOFW402119}", "message", "%{CISCOFW419001}", "message", "%{CISCOFW419002}", "message", "%{CISCOFW500004}", "message", "%{CISCOFW602303_602304}", "message", "%{CISCOFW710001_710002_710003_710005_710006}", "message", "%{CISCOFW713172}", "message", "%{CISCOFW733100}", "message", "%{GREEDYDATA}" ] } syslog_pri { } date { "match" => [ "syslog_timestamp", "MMM d HH:mm:ss", "MMM dd HH:mm:ss" ] target => "@timestamp" } mutate { remove_field => [ "syslog_facility", "syslog_facility_code", "syslog_severity", "syslog_severity_code"] } } output { elasticsearch { hosts => ["server1","server2","server3"] index => "network-%{+YYYY.MM.dd}" template => "/etc/logstash/logstash-2.1.1/vendor/bundle/jruby/1.9/gems/logstash-output-elasticsearch-2.2.0-java/lib/logstash/outputs/elasticsearch/elasticsearch-network.json" template_name => "network" } }
-w N
可以使用命令行選項告訴 LS 為每個實例啟動更多工作程序,其中 N 是一個數字。這應該會大大增加您的事件吞吐量。
我不知道你的確切伺服器佈局,但啟動一半的工作人員可能是安全的,因為你的 LS 盒子上有核心,但要根據它執行的其他功能進行調整。