SpringBoot+Kafka+ELK 完成海量日志收集（超詳細）
來源：jiandansuifeng.blog.csdn.net/
article/details/107361190
整體流程大概如下：
服務器準備
在這先列出各服務器節(jié)點，方便同學們在下文中對照節(jié)點查看相應內容
SpringBoot項目準備
引入log4j2替換SpringBoot默認log，demo項目結構如下：
pom
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<!-- 排除spring-boot-starter-logging -->
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<!-- log4j2 -->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>
<dependency>
<groupId>com.lmax</groupId>
<artifactId>disruptor</artifactId>
<version>3.3.4</version>
</dependency>
</dependencies>
log4j2.xml
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="INFO" schema="Log4J-V2.0.xsd" monitorInterval="600" >
<Properties>
<Property name="LOG_HOME">logs</Property>
<property name="FILE_NAME">collector</property>
<property name="patternLayout">[%d{yyyy-MM-dd'T'HH:mm:ss.SSSZZ}] [%level{length=5}] [%thread-%tid] [%logger] [%X{hostName}] [%X{ip}] [%X{applicationName}] [%F,%L,%C,%M] [%m] ## '%ex'%n</property>
</Properties>
<Appenders>
<Console name="CONSOLE" target="SYSTEM_OUT">
<PatternLayout pattern="${patternLayout}"/>
</Console>
<RollingRandomAccessFile name="appAppender" fileName="${LOG_HOME}/app-${FILE_NAME}.log" filePattern="${LOG_HOME}/app-${FILE_NAME}-%d{yyyy-MM-dd}-%i.log" >
<PatternLayout pattern="${patternLayout}" />
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
<SizeBasedTriggeringPolicy size="500MB"/>
</Policies>
<DefaultRolloverStrategy max="20"/>
</RollingRandomAccessFile>
<RollingRandomAccessFile name="errorAppender" fileName="${LOG_HOME}/error-${FILE_NAME}.log" filePattern="${LOG_HOME}/error-${FILE_NAME}-%d{yyyy-MM-dd}-%i.log" >
<PatternLayout pattern="${patternLayout}" />
<Filters>
<ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
</Filters>
<Policies>
<TimeBasedTriggeringPolicy interval="1"/>
<SizeBasedTriggeringPolicy size="500MB"/>
</Policies>
<DefaultRolloverStrategy max="20"/>
</RollingRandomAccessFile>
</Appenders>
<Loggers>
<!-- 業(yè)務相關 異步logger -->
<AsyncLogger name="com.bfxy.*" level="info" includeLocation="true">
<AppenderRef ref="appAppender"/>
</AsyncLogger>
<AsyncLogger name="com.bfxy.*" level="info" includeLocation="true">
<AppenderRef ref="errorAppender"/>
</AsyncLogger>
<Root level="info">
<Appender-Ref ref="CONSOLE"/>
<Appender-Ref ref="appAppender"/>
<AppenderRef ref="errorAppender"/>
</Root>
</Loggers>
</Configuration>
IndexController
測試Controller，用以打印日志進行調試
@Slf4j
@RestController
public class IndexController {
@RequestMapping(value = "/index")
public String index() {
InputMDC.putMDC();
log.info("我是一條info日志");
log.warn("我是一條warn日志");
log.error("我是一條error日志");
return "idx";
}
@RequestMapping(value = "/err")
public String err() {
InputMDC.putMDC();
try {
int a = 1/0;
} catch (Exception e) {
log.error("算術異常", e);
}
return "err";
}
}
InputMDC
用以獲取log中的[%X{hostName}]、[%X{ip}]、[%X{applicationName}]三個字段值
@Component
public class InputMDC implements EnvironmentAware {
private static Environment environment;
@Override
public void setEnvironment(Environment environment) {
InputMDC.environment = environment;
}
public static void putMDC() {
MDC.put("hostName", NetUtil.getLocalHostName());
MDC.put("ip", NetUtil.getLocalIp());
MDC.put("applicationName", environment.getProperty("spring.application.name"));
}
}
NetUtil
public class NetUtil {
public static String normalizeAddress(String address){
String[] blocks = address.split("[:]");
if(blocks.length > 2){
throw new IllegalArgumentException(address + " is invalid");
}
String host = blocks[0];
int port = 80;
if(blocks.length > 1){
port = Integer.valueOf(blocks[1]);
} else {
address += ":"+port; //use default 80
}
String serverAddr = String.format("%s:%d", host, port);
return serverAddr;
}
public static String getLocalAddress(String address){
String[] blocks = address.split("[:]");
if(blocks.length != 2){
throw new IllegalArgumentException(address + " is invalid address");
}
String host = blocks[0];
int port = Integer.valueOf(blocks[1]);
if("0.0.0.0".equals(host)){
return String.format("%s:%d",NetUtil.getLocalIp(), port);
}
return address;
}
private static int matchedIndex(String ip, String[] prefix){
for(int i=0; i<prefix.length; i++){
String p = prefix[i];
if("*".equals(p)){ //*, assumed to be IP
if(ip.startsWith("127.") ||
ip.startsWith("10.") ||
ip.startsWith("172.") ||
ip.startsWith("192.")){
continue;
}
return i;
} else {
if(ip.startsWith(p)){
return i;
}
}
}
return -1;
}
public static String getLocalIp(String ipPreference) {
if(ipPreference == null){
ipPreference = "*>10>172>192>127";
}
String[] prefix = ipPreference.split("[> ]+");
try {
Pattern pattern = Pattern.compile("[0-9]+\\.[0-9]+\\.[0-9]+\\.[0-9]+");
Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
String matchedIp = null;
int matchedIdx = -1;
while (interfaces.hasMoreElements()) {
NetworkInterface ni = interfaces.nextElement();
Enumeration<InetAddress> en = ni.getInetAddresses();
while (en.hasMoreElements()) {
InetAddress addr = en.nextElement();
String ip = addr.getHostAddress();
Matcher matcher = pattern.matcher(ip);
if (matcher.matches()) {
int idx = matchedIndex(ip, prefix);
if(idx == -1) continue;
if(matchedIdx == -1){
matchedIdx = idx;
matchedIp = ip;
} else {
if(matchedIdx>idx){
matchedIdx = idx;
matchedIp = ip;
}
}
}
}
}
if(matchedIp != null) return matchedIp;
return "127.0.0.1";
} catch (Exception e) {
return "127.0.0.1";
}
}
public static String getLocalIp() {
return getLocalIp("*>10>172>192>127");
}
public static String remoteAddress(SocketChannel channel){
SocketAddress addr = channel.socket().getRemoteSocketAddress();
String res = String.format("%s", addr);
return res;
}
public static String localAddress(SocketChannel channel){
SocketAddress addr = channel.socket().getLocalSocketAddress();
String res = String.format("%s", addr);
return addr==null? res: res.substring(1);
}
public static String getPid(){
RuntimeMXBean runtime = ManagementFactory.getRuntimeMXBean();
String name = runtime.getName();
int index = name.indexOf("@");
if (index != -1) {
return name.substring(0, index);
}
return null;
}
public static String getLocalHostName() {
try {
return (InetAddress.getLocalHost()).getHostName();
} catch (UnknownHostException uhe) {
String host = uhe.getMessage();
if (host != null) {
int colon = host.indexOf(':');
if (colon > 0) {
return host.substring(0, colon);
}
}
return "UnknownHost";
}
}
}
啟動項目，訪問/index和/ero接口，可以看到項目中生成了app-collector.log和error-collector.log兩個日志文件
我們將Springboot服務部署在192.168.11.31這臺機器上。
Kafka安裝和啟用
kafka下載地址：
http://kafka.apache.org/downloads.html
kafka安裝步驟：首先kafka安裝需要依賴與zookeeper，所以小伙伴們先準備好zookeeper環(huán)境（三個節(jié)點即可），然后我們來一起構建kafka broker。
## 解壓命令：
tar -zxvf kafka_2.12-2.1.0.tgz -C /usr/local/
## 改名命令：
mv kafka_2.12-2.1.0/ kafka_2.12
## 進入解壓后的目錄，修改server.properties文件：
vim /usr/local/kafka_2.12/config/server.properties
## 修改配置：
broker.id=0
port=9092
host.name=192.168.11.51
advertised.host.name=192.168.11.51
log.dirs=/usr/local/kafka_2.12/kafka-logs
num.partitions=2
zookeeper.connect=192.168.11.111:2181,192.168.11.112:2181,192.168.11.113:2181
## 建立日志文件夾：
mkdir /usr/local/kafka_2.12/kafka-logs
##啟動kafka：
/usr/local/kafka_2.12/bin/kafka-server-start.sh /usr/local/kafka_2.12/config/server.properties &
創(chuàng)建兩個topic
## 創(chuàng)建topic
kafka-topics.sh --zookeeper 192.168.11.111:2181 --create --topic app-log-collector --partitions 1 --replication-factor 1
kafka-topics.sh --zookeeper 192.168.11.111:2181 --create --topic error-log-collector --partitions 1 --replication-factor 1
我們可以查看一下topic情況
kafka-topics.sh --zookeeper 192.168.11.111:2181 --topic app-log-test --describe
可以看到已經成功啟用了app-log-collector和error-log-collector兩個topic
filebeat安裝和啟用
filebeat下載
cd /usr/local/software
tar -zxvf filebeat-6.6.0-linux-x86_64.tar.gz -C /usr/local/
cd /usr/local
mv filebeat-6.6.0-linux-x86_64/ filebeat-6.6.0
配置filebeat，可以參考下方y(tǒng)ml配置文件
vim /usr/local/filebeat-5.6.2/filebeat.yml
###################### Filebeat Configuration Example #########################
filebeat.prospectors:
- input_type: log
paths:
## app-服務名稱.log, 為什么寫死，防止發(fā)生輪轉抓取歷史數(shù)據(jù)
- /usr/local/logs/app-collector.log
#定義寫入 ES 時的 _type 值
document_type: "app-log"
multiline:
#pattern: '^\s*(\d{4}|\d{2})\-(\d{2}|[a-zA-Z]{3})\-(\d{2}|\d{4})' # 指定匹配的表達式（匹配以 2017-11-15 08:04:23:889 時間格式開頭的字符串）
pattern: '^\[' # 指定匹配的表達式（匹配以 "{ 開頭的字符串）
negate: true # 是否匹配到
match: after # 合并到上一行的末尾
max_lines: 2000 # 最大的行數(shù)
timeout: 2s # 如果在規(guī)定時間沒有新的日志事件就不等待后面的日志
fields:
logbiz: collector
logtopic: app-log-collector ## 按服務劃分用作kafka topic
evn: dev
- input_type: log
paths:
- /usr/local/logs/error-collector.log
document_type: "error-log"
multiline:
#pattern: '^\s*(\d{4}|\d{2})\-(\d{2}|[a-zA-Z]{3})\-(\d{2}|\d{4})' # 指定匹配的表達式（匹配以 2017-11-15 08:04:23:889 時間格式開頭的字符串）
pattern: '^\[' # 指定匹配的表達式（匹配以 "{ 開頭的字符串）
negate: true # 是否匹配到
match: after # 合并到上一行的末尾
max_lines: 2000 # 最大的行數(shù)
timeout: 2s # 如果在規(guī)定時間沒有新的日志事件就不等待后面的日志
fields:
logbiz: collector
logtopic: error-log-collector ## 按服務劃分用作kafka topic
evn: dev
output.kafka:
enabled: true
hosts: ["192.168.11.51:9092"]
topic: '%{[fields.logtopic]}'
partition.hash:
reachable_only: true
compression: gzip
max_message_bytes: 1000000
required_acks: 1
logging.to_files: true
filebeat啟動：
檢查配置是否正確
cd /usr/local/filebeat-6.6.0
./filebeat -c filebeat.yml -configtest
## Config OK
啟動filebeat
/usr/local/filebeat-6.6.0/filebeat &
檢查是否啟動成功
ps -ef | grep filebeat
可以看到filebeat已經啟動成功
然后我們訪問192.168.11.31:8001/index和192.168.11.31:8001/err，再查看kafka的logs文件，可以看到已經生成了app-log-collector-0和error-log-collector-0文件，說明filebeat已經幫我們把數(shù)據(jù)收集好放到了kafka上。
logstash安裝
我們在logstash的安裝目錄下新建一個文件夾
mkdir scrpit
然后cd進該文件，創(chuàng)建一個logstash-script.conf文件
cd scrpit
vim logstash-script.conf
## multiline 插件也可以用于其他類似的堆棧式信息，比如 linux 的內核日志。
input {
kafka {
## app-log-服務名稱
topics_pattern => "app-log-.*"
bootstrap_servers => "192.168.11.51:9092"
codec => json
consumer_threads => 1 ## 增加consumer的并行消費線程數(shù)
decorate_events => true
#auto_offset_rest => "latest"
group_id => "app-log-group"
}
kafka {
## error-log-服務名稱
topics_pattern => "error-log-.*"
bootstrap_servers => "192.168.11.51:9092"
codec => json
consumer_threads => 1
decorate_events => true
#auto_offset_rest => "latest"
group_id => "error-log-group"
}
}
filter {
## 時區(qū)轉換
ruby {
code => "event.set('index_time',event.timestamp.time.localtime.strftime('%Y.%m.%d'))"
}
if "app-log" in [fields][logtopic]{
grok {
## 表達式,這里對應的是Springboot輸出的日志格式
match => ["message", "\[%{NOTSPACE:currentDateTime}\] \[%{NOTSPACE:level}\] \[%{NOTSPACE:thread-id}\] \[%{NOTSPACE:class}\] \[%{DATA:hostName}\] \[%{DATA:ip}\] \[%{DATA:applicationName}\] \[%{DATA:location}\] \[%{DATA:messageInfo}\] ## (\'\'|%{QUOTEDSTRING:throwable})"]
}
}
if "error-log" in [fields][logtopic]{
grok {
## 表達式
match => ["message", "\[%{NOTSPACE:currentDateTime}\] \[%{NOTSPACE:level}\] \[%{NOTSPACE:thread-id}\] \[%{NOTSPACE:class}\] \[%{DATA:hostName}\] \[%{DATA:ip}\] \[%{DATA:applicationName}\] \[%{DATA:location}\] \[%{DATA:messageInfo}\] ## (\'\'|%{QUOTEDSTRING:throwable})"]
}
}
}
## 測試輸出到控制臺：
output {
stdout { codec => rubydebug }
}
## elasticsearch：
output {
if "app-log" in [fields][logtopic]{
## es插件
elasticsearch {
# es服務地址
hosts => ["192.168.11.35:9200"]
# 用戶名密碼
user => "elastic"
password => "123456"
## 索引名，+ 號開頭的，就會自動認為后面是時間格式：
## javalog-app-service-2019.01.23
index => "app-log-%{[fields][logbiz]}-%{index_time}"
# 是否嗅探集群ip：一般設置true；http://192.168.11.35:9200/_nodes/http?pretty
# 通過嗅探機制進行es集群負載均衡發(fā)日志消息
sniffing => true
# logstash默認自帶一個mapping模板，進行模板覆蓋
template_overwrite => true
}
}
if "error-log" in [fields][logtopic]{
elasticsearch {
hosts => ["192.168.11.35:9200"]
user => "elastic"
password => "123456"
index => "error-log-%{[fields][logbiz]}-%{index_time}"
sniffing => true
template_overwrite => true
}
}
}
啟動logstash
/usr/local/logstash-6.6.0/bin/logstash -f /usr/local/logstash-6.6.0/script/logstash-script.conf &
等待啟動成功，我們再次訪問192.168.11.31:8001/err
可以看到控制臺開始打印日志
ElasticSearch與Kibana
ES和Kibana的搭建之前沒寫過博客，網(wǎng)上資料也比較多，大家可以自行搜索。
搭建完成后，訪問Kibana的管理頁面192.168.11.35:5601，選擇Management -> Kinaba - Index Patterns
然后Create index pattern
index pattern 輸入 app-log-*Time Filter field name 選擇 currentDateTime
這樣我們就成功創(chuàng)建了索引。
我們再次訪問192.168.11.31:8001/err，這個時候就可以看到我們已經命中了一條log信息
里面展示了日志的全量信息
到這里，我們完整的日志收集及可視化就搭建完成了，grafana loki也不錯，用起來賊爽！
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