Question

我有两个引擎：postgres.properties（主节点）和azure.properties。两者都在同一台机器上。一个数据库是本地的，一个是在云中。

当SymmetricDS启动时，它会为天蓝色引擎提供此错误：

2018-06-05 06:49:30,476 WARN [azure] [JdbcSqlTemplate] [symmetric-engine-startup-1] CREATE TABLE permission denied in database 'master'..  Failed to execute: CREATE TABLE "sym_channel"(
    "channel_id" VARCHAR(128) NOT NULL,
    "processing_order" INT DEFAULT 1 NOT NULL,
    "max_batch_size" INT DEFAULT 1000 NOT NULL,
    "max_batch_to_send" INT DEFAULT 60 NOT NULL,
    "max_data_to_route" INT DEFAULT 100000 NOT NULL,
    "extract_period_millis" INT DEFAULT 0 NOT NULL,
    "enabled" SMALLINT DEFAULT 1 NOT NULL,
    "use_old_data_to_route" SMALLINT DEFAULT 1 NOT NULL,
    "use_row_data_to_route" SMALLINT DEFAULT 1 NOT NULL,
    "use_pk_data_to_route" SMALLINT DEFAULT 1 NOT NULL,
    "reload_flag" SMALLINT DEFAULT 0 NOT NULL,
    "file_sync_flag" SMALLINT DEFAULT 0 NOT NULL,
    "contains_big_lob" SMALLINT DEFAULT 0 NOT NULL,
    "batch_algorithm" VARCHAR(50) DEFAULT 'default' NOT NULL,
    "data_loader_type" VARCHAR(50) DEFAULT 'default' NOT NULL,
    "description" VARCHAR(255),
    "queue" VARCHAR(25) DEFAULT 'default' NOT NULL,
    "max_network_kbps" DECIMAL(10,3) DEFAULT 0.000 NOT NULL,
    "data_event_action" CHAR(1),
    "create_time" DATETIME,
    "last_update_by" VARCHAR(50),
    "last_update_time" DATETIME,
    PRIMARY KEY ("channel_id")
)

这是因为＆＃39;主人＆＃39;数据库是read-only in Azure SQL databases。在此之后，[azure]节点关闭。

INFO [azure] [AbstractSymmetricEngine] [symmetric-engine-startup-1]停止SymmetricDS externalId = 001 version = 3.9.7 database = Microsoft SQL Server

..然后[postgres]节点对此有所说明：

WARN [postgres] [PushService] [postgres-push-default-3]无法推送到节点＆＃39; 001＆＃39;在小组＆＃39; azure＆＃39;。同步网址为空

为两个引擎设置了同步网址和注册网址，因此我认为真正的问题在于权限问题。

的问题：

如何解决此错误？ 我假设我需要指示SymmetricDS使用除＃master;＆＃39;以外的数据库，但是如何使用？

postgres.properties

engine.name=postgres
db.driver=org.postgresql.Driver

# The JDBC URL used to connect to the database
db.url=jdbc:postgresql://127.0.0.1/<redacted>

# The user to login as who can create and update tables
db.user=<redacted>

# The password for the user to login as
db.password=<redacted>

registration.url=
sync.url=http://localhost:31415/sync/postgres-000

# Do not change these for running the demo
group.id=postgres
external.id=000

# Don't muddy the waters with purge logging
job.purge.period.time.ms=7200000

# This is how often the routing job will be run in milliseconds
job.routing.period.time.ms=5000
# This is how often the push job will be run.
job.push.period.time.ms=10000
# This is how often the pull job will be run.
job.pull.period.time.ms=10000
# Kick off initial load
initial.load.create.first=true

azure.properties

engine.name=azure
db.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver # located in the libs folder

# The JDBC URL used to connect to the database
db.url=jdbc:jtds:sqlserver://<redacted>

# The user to login as who can create and update tables
db.user=<redacted>

# The password for the user to login as
db.password=<redacted>

sync.url=http://localhost:31415/sync/azure-001
registration.url=http://localhost:31415/sync/postgres-000

group.id=azure
external.id=001

# This is how often the routing job will be run in milliseconds
job.routing.period.time.ms=5000
# This is how often the push job will be run.
job.push.period.time.ms=10000
# This is how often the pull job will be run.
job.pull.period.time.ms=10000

Answer 1

在文件public static String RSADecryption(Key key, String base64EncryptedData) throws Exception { Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); cipher.init(Cipher.DECRYPT_MODE, key); byte[] a = Base64.decode(base64EncryptedData, Base64.DEFAULT); byte[] plainBytes = cipher.doFinal(a); return new String(plainBytes, "UTF-8"); } public static String RSAEncryption(Key key, String plainData) throws Exception { Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding"); cipher.init(Cipher.ENCRYPT_MODE, key); byte[] a = plainData.getBytes(); byte[] encryptedBytes = cipher.doFinal(a); return Base64.encodeToString(encryptedBytes, Base64.DEFAULT); }中，azure.properties行已注释掉：

sync.url

经验法则是symmetricDs代理应该尽可能接近它同步的数据库。应该有一个对称-ds代理程序靠近主节点运行，另一个代理程序靠近azure实例运行。您将无法同步只读数据库。 SymmetricDs需要写/读，甚至创建表，函数，包和触发器权限才能正常工作

将SymmetricDS与Azure SQL数据库一起使用时的权限问题

的问题：

1 个答案: