谁必须 *** 网一手数据-微服务架构之分布式系统追踪系统软件（springboot zipkin mysql）
大家简易了解了zipkin的应用，可是搜集的数据都储存在内存中重新启动后数据遗失，但是zipkin的Storage除开内存，也有Cassandra、MYSQL、ElasticSearch。
二、zipkin的各种各样Storage配置介绍
zipkin存有一些公用的配置，另外存有一些独享的配置（详细资料详细地址为：https://github.com/openzipkin/zipkin/tree/master/zipkin-server#configuration-for-the-ui），这里不做配置表明的汉语翻译（由于都较为简单易懂），其公用的配置以下所显示：
新 *** 黑客qq破解器注册码*`QUERY_PORT`: Listen port for the http api and web ui; Defaults to 9411
新 *** 黑客qq破解器注册码 *`QUERY_LOG_LEVEL`: Log level written to the console; Defaults to INFO
*`QUERY_LOOKBACK`: How many milliseconds queries can look back from endTs;Defaults to 7 days
新 *** 黑客qq破解器注册码 *`STORAGE_TYPE`: SpanStore implementation: one of `mem`, `mysql`, `cassandra`,`elasticsearch`
新 *** 黑客qq破解器注册码 *`COLLECTOR_PORT`: Listen port for the scribe thrift api; Defaults to 9410
*`COLLECTOR_SAMPLE_RATE`: Percentage of traces to retain, defaults to alwayssample (1.0).
（1）Cassandra 新 *** 黑客qq破解器注册码 Storage配置
* `CASSANDRA_KEYSPACE`: The keyspace to use. Defaults to “zipkin”.
* `CASSANDRA_CONTACT_POINTS`: Comma separated list of hosts / ip addresses part of Cassandra cluster. Defaults to localhost
新 *** 黑客qq破解器注册码 * `CASSANDRA_LOCAL_DC`: Name of the datacenter that will be considered “local” for latency load balancing. When unset, load-balancing is round-robin.
新 *** 黑客qq破解器注册码 新 *** 黑客qq破解器注册码 * `CASSANDRA_ENSURE_SCHEMA`: Ensuring cassandra has the latest schema. If enabled tries to execute scripts in the classpath prefixed with `cassandra-schema-cql3`. Defaults to true
新 *** 黑客qq破解器注册码 * `CASSANDRA_USERNAME` and `CASSANDRA_PASSWORD`: Cassandra authentication. Will throw an exception on startup if authentication fails. No default
新 *** 黑客qq破解器注册码 * `CASSANDRA_USE_SSL`: Requires `javax.net.ssl.trustStore` and `javax.net.ssl.trustStorePassword`, defaults to false.
（2）MySQL Storage配置
新 *** 黑客qq破解器注册码* `MYSQL_DB`: The database to use. Defaults to “zipkin”.
* `MYSQL_USER` and `MYSQL_PASS`: MySQL authentication, which defaults to empty string.
新 *** 黑客qq破解器注册码 * `MYSQL_HOST`: Defaults to localhost
* `MYSQL_TCP_PORT`: Defaults to 3306
新 *** 黑客qq破解器注册码 * `MYSQL_MAX_CONNECTIONS`: Maximum concurrent connections, defaults to 10
新 *** 黑客qq破解器注册码 * `MYSQL_USE_SSL`: Requires `javax.net.ssl.trustStore` and `javax.net.ssl.trustStorePassword`, defaults to false.
（3）Elasticsearch Storage配置
新 *** 黑客qq破解器注册码 * `ES_CLUSTER`: The name of the elasticsearch cluster to connect to. Defaults to “elasticsearch”.
新 *** 黑客qq破解器注册码 * `ES_HOSTS`: A comma separated list of elasticsearch hostnodes to connect to. When in host:port
新 *** 黑客qq破解器注册码 format, they should use the transport port, not the http port. To use http, specify
新 *** 黑客qq破解器注册码 base urls, ex. http://host:9200. Defaults to “localhost:9300″. When not using http,
新 *** 黑客qq破解器注册码 Only one of the hosts needs to be available to fetch the remaining nodes in&新 *** 黑客qq破解器注册码nbsp;the
cluster. It is recommended to set this to all the 新 *** 黑客qq破解器注册码master nodes of the cluster.
&nb sp; If the http URL is an AWS-hosted elasticsearch installation (e.g.
新黑客qq破解器激活码 https://search-domain-xyzzy.us-west-2.es.amazonaws.com) then Zipkin will attempt to
新黑客qq破解器激活码 use the default AWS 新黑客qq破解器激活码credential provider (env variables, system properties, config
新黑客qq破解器激活码 files, or ec2 profiles) to sign outbound requests to the cluster.
* `ES_PIPELINE`: Only valid when the destination is Elasticsearch 5.x. Indicates the ingest
新黑客qq破解器激活码 pipeline used before spans are indexed. No default.
新黑客qq破解器激活码 * `ES_MAX_REQUESTS`: Only valid when the transport is http. Sets maximum in-flight requests from
新黑客qq破解器激活码 this process to any Elasticsearch host. Defaults to 64.
新黑客qq破解器激活码 * `ES_AWS_DOMAIN`: The name of the AWS-hosted elasticsearch domain to use. Supercedes&新黑客qq破解器激活码nbsp;any set
`ES_HOSTS`. Triggers the same request signing behavior as with `ES_HOSTS`, but
新黑客qq破解器激活码 requires the additional IAM permission to describe the given domain.
新黑客qq破解器激活码 * `ES_AWS_REGION`: An optional override to the default&新黑客qq破解器激活码nbsp;region lookup to search for the domain
given in `ES_AWS_DOMAIN`. Ignored if only `ES_HOSTS` is present.
新黑客qq破解器激活码 * `ES_INDEX`: The index prefix to use when generating daily index names. Defaults to zipkin.
新黑客qq破解器激活码 * `ES_DATE_SEPARATOR`: The date separator to use when generating daily index names. Defaults to ‘-‘.
新黑客qq破解器激活码 * `ES_INDEX_SHARDS`: The number of shards to split the index into. Each shard and its replicas
新黑客qq破解器激活码 are assigned to a machine in the cluster. Increasing the number of shards
新黑客qq破解器激活码 新黑客qq破解器激活码 and machines in the cluster will improve read and write performance. Number
&新黑客qq破解器激活码nbsp; of shards cannot be changed for existing indices, but new&新黑客qq破解器激活码nbsp;daily indices
will pick up changes to the setting. Defaults to 5.
三、zipkin环境准备与启动
在本节中，以MySQL为例进行说明，由于目前只是Mysql5.6和5.7进行测试过，所以本次我选择Mysql5.7版本新黑客qq破解器激活码。
（1） 初始化数据库
安装好Mysql5.7后新建zipkin的数据库，然后执行下面的SQL语句新建表：
CREATETABLE IF NOT EXISTS zipkin_spans (
新黑客qq破解器激活码 `trace_id_high` BIGINT NOT NULL DEFAULT 0COMMENT ‘If non zero, this means the trace uses 128 bit traceIds instead of 64bit’,
新黑客qq破解器激活码 `trace_id` BIGINT NOT NULL,
`id` BIGINT NOT NULL,
`name` VARCHAR(255)&新黑客qq破解器激活码nbsp;NOT NULL,
`parent_id` BIGINT,
`debug` BIT(1),
新黑客qq破解器激活码 `start_ts` BIGINT COMMENT ‘Span.timestamp():epoch micros used for endTs query and to implement TTL’,
`duration` BIGINT COMMENT ‘Span.duration():micros used for minDuration and maxDuration query’
新黑客qq破解器激活码 )ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;
新黑客qq破解器激活码
ALTERTABLE zipkin_spans ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `id`) COMMENT‘ignore insert on duplicate’;
新黑客qq破解器激活码 ALTERTABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`, `id`) COMMENT ‘forjoining with zipkin_annotations’;
新黑客qq破解器激活码 ALTERTABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`) COMMENT ‘forgetTracesByIds’;
ALTERTABLE zipkin_spans ADD INDEX(`name`) COMMENT ‘for getTraces and getSpanNames’;
新黑客qq破解器激活码 ALTERTABLE zipkin_spans ADD INDEX(`start_ts`) COMMENT ‘for getTraces ordering andrange’;
CREATETABLE IF NOT EXISTS zipkin_annotations (
`trace_id_high` BIGINT NOT NULL DEFAULT 0COMMENT &新黑客qq破解器激活码lsquo;If non zero, this means the trace uses 128 bit traceIds instead of 64bit’,
新黑客qq破解器激活码 `trace_id` BIGINT NOT NULL COMMENT ‘coincideswith zipkin_spans.trace_id’,
`span_id` BIGINT NOT NULL COMMENT ‘coincideswith zipkin_spans.id’,
新黑客qq破解器激活码 `a_key` VARCHAR(255) NOT NULL COMMENT‘BinaryAnnotation.key or Annotation.value if type == -1′,
新黑客qq破解器激活码 `a_value` BLOB COMMENT‘BinaryAnnotation.value(), which must be *** aller than 64KB’,
`a_type` INT NOT 新黑客qq破解器激活码NULL COMMENT‘BinaryAnnotation.type() or -1 if Annotation’,
`a_timestamp` BIGINT COMMENT ‘Used toimplement TTL; Annotation.timestamp or zipkin_spans.timestamp’,
新黑客qq破解器激活码 `endpoint_ipv4` INT COMMENT ‘Null whenBinary/Annotation.endpoint is null’,
新黑客qq破解器激活码 `endpoint_ipv6` BINARY(16) COMMENT ‘Null whenBinary/Annotation.endpoint is null, or no IPv6 address’,
新黑客qq破解器激活码 `endpoint_port` *** ALLINT COMMENT ‘Null whenBinary/Annotation.endpoint is null’,
新黑客qq破解器激活码 `endpoint_service_name` VARCHAR(255) COMMENT‘Null when Binary/Annotation.endpoint is null’
)ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;
新黑客qq破解器激活码
ALTERTABLE zipkin_annotations ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `span_id`,`a_key`, `a_timestamp`) COMMENT ‘Ignore insert on duplicate’;
新黑客qq破解器激活码 ALTERTABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`, `span_id`)COMMENT ‘for joining with zipkin_spans’;
新黑客qq破解器激活码 ALTERTABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`) COMMENT ‘forgetTraces/ByIds’;
新黑客qq破解器激活码 ALTERTABLE zipkin_annotations ADD INDEX(`endpoint_service_name`) COMMENT ‘forgetTraces and getServiceNames’;
新黑客qq破解器激活码 ALTERTABLE zipkin_annotations ADD INDEX(`a_type`) COMMENT ‘for getTraces’;
ALTERTABLE zipkin_annotations ADD INDEX(`a_key`) COMMENT ‘for getTraces’;
新黑客qq破解器激活码 ALTERTABLE zipkin_annotations ADD INDEX(`trace_id`, `span_id`, `a_key`) COMMENT ‘fordependencies job’;
新黑客qq破解器激活码 CREATETABLE IF NOT EXISTS zipkin_dependencies (
`day` DATE NOT NULL,
`parent` VARCHAR(255) NOT NULL,
新黑客qq破解器激活码 `child` VARCHAR(255) NOT NULL,
`call_count` BIGINT
)ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci;
新黑客qq破解器激活码
ALTERTABLE zipkin_dependencies ADD UNIQUE KEY(`day`, `parent`, `child`);
（2） 启动实例
执行命令：Java -jar zipkin-server-1.17.1-exec.jar –STORAGE_TYPE=mysql–MYSQL_DB=zipkin –MYSQL_USER=root –MYSQL_PASS=root 新黑客qq破解器激活码 –MYSQL_HOST=localhost–MYSQL_TCP_PORT=3306，启动成功如下图所示：
（3） 查看运行效果
通过上图，我们发现zipkin使用springboot，并且启动的端口为9411，然后我们通过浏览器访问，效果如下：
四、分布式跟踪系统实践（springboot+zipkin+mysql）
4.1场景设置与分析
现在有一个服务A调用服务B，服务B又分别调用服务C和D，整个链路过程的关系图如下所示：
4.2 代码编写
具体代码和上一节代码相同，源代码下载地址：https://github.com/dreamerkr/mircoservice.git文件夹springboot+zipkin下面。
4.3运行效果
（1）分别启动每个服务，然后访问服务1，浏览器访问（http://localhost:8081/service1/test）
（2）输入zipkin地址，每次trace的列表
点击其中的trace，可以看trace的树形结构，包括每个服务所消耗的时间：
点击每个span可以获取延迟信息新黑客qq破解器激活码：
同时可以查看服务之间的依赖关系：
同时查看zipkin数据库表已经存在数据：
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