zipkinZipkin是一种分布式跟踪系统。它有助于收集解决微服务架构中的延迟问题所需的时序数据zipkin官网zipkin4Netzipkin4net是.NET客户端库。zipkin4netzipkin-dependencies这是一个Spark作业，它将从您的数据存储区...
zipkin
Zipkin是一种分布式跟踪系统。它有助于收集解决微服务架构中的延迟问题所需的时序数据
zipkin官网
zipkin4Net
zipkin4net是.NET客户端库。
zipkin4net
zipkin-dependencies
这是一个Spark作业，它将从您的数据存储区收集跨度，分析服务之间的链接，并存储它们以供以后在Web UI中呈现。
zipkin-dependencies
使用方法
如果内存不足时，java后跟上-Xmx1024m -Xms1024m参数，JAVA_OPTS的一些参数可参考Oracle官方说明配置默认JVM和Java参数
# ex to run the job to process yesterday's traces on OS/X$ STORAGE_TYPE=cassandra3 java -jar zipkin-dependencies.jar `date -uv-1d +%F`# or on Linux$ STORAGE_TYPE=cassandra3 java -jar zipkin-dependencies.jar `date -u -d '1 day ago' +%F`
MySQL 存储
* `MYSQL_DB`: 使用的数据库，默认是 "zipkin". * `MYSQL_USER` and `MYSQL_PASS`: MySQL授权, 默认是空. * `MYSQL_HOST`: 默认主机（域名/ip）是localhost * `MYSQL_TCP_PORT`: 默认端口是 3306* `MYSQL_USE_SSL`: 验证 `javax.net.ssl.trustStore` 和 `javax.net.ssl.trustStorePassword`,默认不验证。
示例
$ STORAGE_TYPE=mysql MYSQL_USER=root java -jar zipkin-dependencies.jar
详情参考：
zipkin-dependencies
实践
创建使用数据库
mysql> create database mytestdb; Query OK, 1 row affected (0.01 sec) mysql> show databases; +--------------------+| Database |+--------------------+| information_schema || mysql || mytestdb || performance_schema || sys || ttt |+--------------------+7 rows in set (0.00 sec) mysql> use mytestdb Database changed
使用sql语句创建zipkin表
CREATE TABLE IF NOT EXISTS zipkin_spans (`trace_id_high` BIGINT NOT NULL DEFAULT 0COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64bit',`trace_id` BIGINT NOT NULL,`id` BIGINT NOT NULL,`name` VARCHAR(255) NOT NULL,`parent_id` BIGINT,`debug` BIT(1),`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')ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci; ALTER TABLE zipkin_spans ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `id`) COMMENT'ignore insert on duplicate'; ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`, `id`) COMMENT 'forjoining with zipkin_annotations'; ALTER TABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'forgetTracesByIds'; ALTER TABLE zipkin_spans ADD INDEX(`name`) COMMENT 'for getTraces and getSpanNames'; ALTER TABLE zipkin_spans ADD INDEX(`start_ts`) COMMENT 'for getTraces ordering andrange'; CREATE TABLE IF NOT EXISTS zipkin_annotations (`trace_id_high` BIGINT NOT NULL DEFAULT 0COMMENT 'If non zero, this means the trace uses 128 bit traceIds instead of 64bit',`trace_id` BIGINT NOT NULL COMMENT 'coincideswith zipkin_spans.trace_id',`span_id` BIGINT NOT NULL COMMENT 'coincideswith zipkin_spans.id',`a_key` VARCHAR(255) NOT NULL COMMENT'BinaryAnnotation.key or Annotation.value if type == -1',`a_value` BLOB COMMENT'BinaryAnnotation.value(), which must be smaller than 64KB',`a_type` INT NOT NULL COMMENT'BinaryAnnotation.type() or -1 if Annotation',`a_timestamp` BIGINT COMMENT 'Used toimplement TTL; Annotation.timestamp or zipkin_spans.timestamp',`endpoint_ipv4` INT COMMENT 'Null whenBinary/Annotation.endpoint is null',`endpoint_ipv6` BINARY(16) COMMENT 'Null whenBinary/Annotation.endpoint is null, or no IPv6 address',`endpoint_port` SMALLINT COMMENT 'Null whenBinary/Annotation.endpoint is null',`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; ALTER TABLE zipkin_annotations ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `span_id`,`a_key`, `a_timestamp`) COMMENT 'Ignore insert on duplicate'; ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`, `span_id`)COMMENT 'for joining with zipkin_spans'; ALTER TABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'forgetTraces/ByIds'; ALTER TABLE zipkin_annotations ADD INDEX(`endpoint_service_name`) COMMENT 'forgetTraces and getServiceNames'; ALTER TABLE zipkin_annotations ADD INDEX(`a_type`) COMMENT 'for getTraces'; ALTER TABLE zipkin_annotations ADD INDEX(`a_key`) COMMENT 'for getTraces'; ALTER TABLE zipkin_annotations ADD INDEX(`trace_id`, `span_id`, `a_key`) COMMENT 'fordependencies job'; CREATE TABLE IF NOT EXISTS zipkin_dependencies (`day` DATE NOT NULL,`parent` VARCHAR(255) NOT NULL,`child` VARCHAR(255) NOT NULL,`call_count` BIGINT )ENGINE=InnoDB ROW_FORMAT=COMPRESSED CHARACTER SET=utf8 COLLATE utf8_general_ci; ALTER TABLE zipkin_dependencies ADD UNIQUE KEY(`day`, `parent`, `child`);
创建成功后，查询结果。
mysql> show tables; +---------------------+| Tables_in_mytestdb |+---------------------+| zipkin_annotations || zipkin_dependencies || zipkin_spans |+---------------------+3 rows in set (0.00 sec)
启动zipkin-dependencies
最开始我的密码是【四个字母一个感叹号一个数字】，再执行启动命令时，密码那块给我报错自动换成【四个字母rm -f】，我修改成【四个字母一个#号一个数字】就能执行了
执行成功后，依然提示Access denied for user 'root'@'localhost' (using password: NO),但我在linux的命令中直接用mysql -u root -p相同密码是可以登录成功的。所以问题出现在哪呢？
[root@izwz9fwifc2eniq3lbdzmgz cusD]# STORAGE_TYPE=mysql MYSQL_HOST=localhost MYSQL_TCP_PORT=3306 MYSQL_DB=mytestdb MYSQL_USER=XXXXX MYSQL_PASS=XXXXX java -Xmx1024m -Xms1024m -jar zipkin-dependencies.jar Exception in thread "main" java.lang.RuntimeException: java.sql.SQLInvalidAuthorizationSpecException: Access denied for user 'root'@'localhost' (using password: NO) at zipkin2.dependencies.mysql.MySQLDependenciesJob.hasTraceIdHigh(MySQLDependenciesJob.java:233) at zipkin2.dependencies.mysql.MySQLDependenciesJob.run(MySQLDependenciesJob.java:184) at zipkin2.dependencies.ZipkinDependenciesJob.main(ZipkinDependenciesJob.java:65) Caused by: java.sql.SQLInvalidAuthorizationSpecException: Access denied for user 'root'@'localhost' (using password: NO) at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:173) at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:110) at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1115) at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:502) at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:154) at org.mariadb.jdbc.Driver.connect(Driver.java:86) at java.sql.DriverManager.getConnection(DriverManager.java:664) at java.sql.DriverManager.getConnection(DriverManager.java:247) at zipkin2.dependencies.mysql.MySQLDependenciesJob.hasTraceIdHigh(MySQLDependenciesJob.java:229) ... 2 more Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: NO) Current charset is UTF-8. If password has been set using other charset, consider using option 'passwordCharacterEncoding'at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.authentication(AbstractConnectProtocol.java:862) at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.handleConnectionPhases(AbstractConnectProtocol.java:785) at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connect(AbstractConnectProtocol.java:456) at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1111) ... 8 more
追溯源码
逼不得已，走上查看源码之路，Idea打开zipkin-dependencies/mysql源码，查看相关部分代码。
public static final class Builder {
Map<String, String> sparkProperties = ImmutableMap.of("spark.ui.enabled", "false");
String db = getEnv("MYSQL_DB", "zipkin");
String host = getEnv("MYSQL_HOST", "localhost");int port = Integer.parseInt(getEnv("MYSQL_TCP_PORT", "3306"));
String user = getEnv("MYSQL_USER", "");
String password = getEnv("MYSQL_PASS", "");int maxConnections = Integer.parseInt(getEnv("MYSQL_MAX_CONNECTIONS", "10"));boolean useSsl = Boolean.parseBoolean(getEnv("MYSQL_USE_SSL", "false"));// local[*] master lets us run & test the job locally without setting a Spark clusterString sparkMaster = getEnv("SPARK_MASTER", "local[*]");// By default the job only works on traces whose first timestamp is todaylong day = midnightUTC(System.currentTimeMillis());/**
*为减少篇幅，中间设置属性部分代码省略。
*/public MySQLDependenciesJob build() {return new MySQLDependenciesJob(this);
}
}/**
*为减少篇幅，中间部分代码省略。
*/MySQLDependenciesJob(Builder builder) {this.db = builder.db;this.day = builder.day;
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
df.setTimeZone(TimeZone.getTimeZone("UTC"));this.dateStamp = df.format(new Date(builder.day));this.url = new StringBuilder("jdbc:mysql://")
.append(builder.host).append(":").append(builder.port)
.append("/").append(builder.db)
.append("?autoReconnect=true")
.append("&useSSL=").append(builder.useSsl).toString();this.user = builder.user;this.password = builder.password;this.conf = new SparkConf(true)
.setMaster(builder.sparkMaster)
.setAppName(getClass().getName());if (builder.jars != null) conf.setJars(builder.jars);for (Map.Entry<String, String> entry : builder.sparkProperties.entrySet()) {
conf.set(entry.getKey(), entry.getValue());
}this.logInitializer = builder.logInitializer;
}void saveToMySQL(List<DependencyLink> links) {try (Connection con = DriverManager.getConnection(url, user, password)) {
PreparedStatement replace = con.prepareStatement("REPLACE INTO zipkin_dependencies (day, parent, child, call_count, error_count) VALUES (?,?,?,?,?)");for (DependencyLink link : links) {
replace.setDate(1, new java.sql.Date(day));
replace.setString(2, link.parent());
replace.setString(3, link.child());
replace.setLong(4, link.callCount());
replace.setLong(5, link.errorCount());
replace.executeUpdate();
}
} catch (SQLException e) {throw new RuntimeException("Could not save links " + links, e);
}
}然并卵，看完之后，没看出明显问题。难道还是我自己的mysql配置问题？还是启动部分的参数问题？代码部分也是有些疑惑,password和root为什么没放进url里，难道是为了安全考虑么？
this.url = new StringBuilder("jdbc:mysql://")
.append(builder.host).append(":").append(builder.port)
.append("/").append(builder.db)
.append("?autoReconnect=true")
.append("&useSSL=").append(builder.useSsl).toString();this.user = builder.user;this.password = builder.password;文中还提到 Current charset is UTF-8. If password has been set using other charset, consider using option 'passwordCharacterEncoding'，编码格式是否有不同呢？
查看mysql数据库及表编码格式
mysql> show variables like 'character_set_database'; +------------------------+---------+| Variable_name | Value | +------------------------+---------+ | character_set_database | utf8mb4 |+------------------------+---------+1 row in set (0.01 sec)
参考链接
https://jira.mariadb.org/browse/CONJ-480
https://samebug.io/exceptions/2980875/java.sql.SQLInvalidAuthorizationSpecException/could-not-connect-access-denied-for-user
将请求参数作为UTF-8编码的字符串传递[重复]
zipkin
zipkin集成到node，C#
微服务之分布式跟踪系统（springboot+zipkin+mysql）
第二十九章 springboot + zipkin + mysql
Linux下的Mysql用命令执行sql文件
修改MySQL管理员密码
zipkin-server
总结
由于启动zipkin-dependencies链接mysql报Access denied for user 'root'@'localhost' (using password: NO)错误，本次持久化之路最终失败。但由于我直接使用【mysql -u 用户 -p】是能登录成功的，所以我猜测了以下原因：
- 客户端自己的bug,和我服务器mysql版本不兼容？
- 编码问题，编码两者不符？
- 用户名和密码没有共享全局，只对一个数据库有效？
别人的博文是面向教学成功编程，我的是面向失败编程，也别有一番趣味。留下疑问，待日后解决调。虽然失败了，但我又收集了一堆链接，增添了mysql一些故障解决的认识。
今天换了一款个人很喜欢的皮肤，会根据h1,h2自动生成目录，之前的博文我也都检查了下，有很大失位的我都调整了过来，不标准的暂时不改了，我以后的博文都按照要求的格式写，排版美观度提升了很多，感谢作者bndong，如果有打算使用这个皮肤的，一定要开启控件显示公告。
沃梦达教程
本文标题为：.NetCore实践篇：分布式监控Zipkin持久化之殇
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