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。
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
CREATETABLE 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; ALTERTABLE zipkin_spans ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `id`) COMMENT'ignore insert on duplicate'; ALTERTABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`, `id`) COMMENT 'forjoining with zipkin_annotations'; ALTERTABLE zipkin_spans ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'forgetTracesByIds'; ALTERTABLE zipkin_spans ADD INDEX(`name`) COMMENT 'for getTraces and getSpanNames'; 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 '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; ALTERTABLE zipkin_annotations ADD UNIQUE KEY(`trace_id_high`, `trace_id`, `span_id`,`a_key`, `a_timestamp`) COMMENT 'Ignore insert on duplicate'; ALTERTABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`, `span_id`)COMMENT 'for joining with zipkin_spans'; ALTERTABLE zipkin_annotations ADD INDEX(`trace_id_high`, `trace_id`) COMMENT 'forgetTraces/ByIds'; ALTERTABLE zipkin_annotations ADD INDEX(`endpoint_service_name`) COMMENT 'forgetTraces and getServiceNames'; ALTERTABLE zipkin_annotations ADD INDEX(`a_type`) COMMENT 'for getTraces'; ALTERTABLE zipkin_annotations ADD INDEX(`a_key`) COMMENT 'for getTraces'; ALTERTABLE zipkin_annotations ADD INDEX(`trace_id`, `span_id`, `a_key`) COMMENT 'fordependencies job'; CREATETABLE 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; ALTERTABLE 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 cluster
String sparkMaster = getEnv("SPARK_MASTER", "local[*]"); // By default the job only works on traces whose first timestamp is today
long 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？
mysql> show variables like 'character_set_database'; +------------------------+---------+| Variable_name | Value | +------------------------+---------+ | character_set_database | utf8mb4 |+------------------------+---------+1 row in set (0.01 sec)
作者：范存威
链接：https://www.jianshu.com/p/1ce661b83568
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/1347/viewspace-2820201/ ，如需转载，请注明出处，否则将追究法律责任。
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