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159 lines
18 KiB
ReStructuredText
159 lines
18 KiB
ReStructuredText
Node database
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=============
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.. contents::
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Configuring the node database
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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H2
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--
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By default, nodes store their data in an H2 database. See :doc:`node-database-access-h2`.
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Nodes can also be configured to use PostgreSQL and SQL Server. However, these are experimental community contributions.
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The Corda continuous integration pipeline does not run unit tests or integration tests of these databases.
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PostgreSQL
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----------
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Nodes can also be configured to use PostgreSQL 9.6, using PostgreSQL JDBC Driver 42.1.4. Here is an example node
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configuration for PostgreSQL:
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.. sourcecode:: groovy
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dataSourceProperties = {
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dataSourceClassName = "org.postgresql.ds.PGSimpleDataSource"
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dataSource.url = "jdbc:postgresql://[HOST]:[PORT]/[DATABASE]"
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dataSource.user = [USER]
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dataSource.password = [PASSWORD]
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}
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database = {
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transactionIsolationLevel = READ_COMMITTED
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}
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Note that:
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* Database schema name can be set in JDBC URL string e.g. *currentSchema=my_schema*
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* Database schema name must either match the ``dataSource.user`` value to end up
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on the standard schema search path according to the
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`PostgreSQL documentation <https://www.postgresql.org/docs/9.3/static/ddl-schemas.html#DDL-SCHEMAS-PATH>`_, or
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the schema search path must be set explicitly for the user.
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* If your PostgresSQL database is hosting multiple schema instances (using the JDBC URL currentSchema=my_schema)
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for different Corda nodes, you will need to create a *hibernate_sequence* sequence object manually for each subsequent schema added after the first instance.
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Corda doesn't provision Hibernate with a schema namespace setting and a sequence object may be not created.
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Run the DDL statement and replace *my_schema* with your schema namespace:
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.. sourcecode:: groovy
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CREATE SEQUENCE my_schema.hibernate_sequence INCREMENT BY 1 MINVALUE 1 MAXVALUE 9223372036854775807 START 8 CACHE 1 NO CYCLE;
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SQLServer
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---------
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Nodes also have untested support for Microsoft SQL Server 2017, using Microsoft JDBC Driver 6.4 for SQL Server. Here is
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an example node configuration for SQLServer:
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.. sourcecode:: groovy
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dataSourceProperties = {
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dataSourceClassName = "com.microsoft.sqlserver.jdbc.SQLServerDataSource"
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dataSource.url = "jdbc:sqlserver://[HOST]:[PORT];databaseName=[DATABASE_NAME]"
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dataSource.user = [USER]
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dataSource.password = [PASSWORD]
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}
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database = {
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transactionIsolationLevel = READ_COMMITTED
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}
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jarDirs = ["[FULL_PATH]/sqljdbc_6.4/enu/"]
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Note that:
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* Ensure the directory referenced by jarDirs contains only one JDBC driver JAR file; by default, the
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``sqljdbc_6.4/enu/`` contains multiple JDBC JAR files for different Java versions.
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Node database tables
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^^^^^^^^^^^^^^^^^^^^
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By default, the node database has the following tables:
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| Table name | Columns |
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+=============================+==========================================================================================================================================================================================================+
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| DATABASECHANGELOG | ID, AUTHOR, FILENAME, DATEEXECUTED, ORDEREXECUTED, EXECTYPE, MD5SUM, DESCRIPTION, COMMENTS, TAG, LIQUIBASE, CONTEXTS, LABELS, DEPLOYMENT_ID |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| DATABASECHANGELOGLOCK | ID, LOCKED, LOCKGRANTED, LOCKEDBY |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_ATTACHMENTS | ATT_ID, CONTENT, FILENAME, INSERTION_DATE, UPLOADER |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_ATTACHMENTS_CONTRACTS | ATT_ID, CONTRACT_CLASS_NAME |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_ATTACHMENTS_SIGNERS | ATT_ID, SIGNER |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_CHECKPOINTS | CHECKPOINT_ID, CHECKPOINT_VALUE |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_CONTRACT_UPGRADES | STATE_REF, CONTRACT_CLASS_NAME |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_HASH_TO_KEY | PK_HASH, PUBLIC_KEY |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_IDENTITIES | PK_HASH, IDENTITY_VALUE |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_IDENTITIES_NO_CERT | PK_HASH, NAME |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_INFOS | NODE_INFO_ID, NODE_INFO_HASH, PLATFORM_VERSION, SERIAL |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_INFO_HOSTS | HOST_NAME, PORT, NODE_INFO_ID, HOSTS_ID |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_INFO_PARTY_CERT | PARTY_NAME, ISMAIN, OWNING_KEY_HASH, PARTY_CERT_BINARY |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_LINK_NODEINFO_PARTY | NODE_INFO_ID, PARTY_NAME |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_MESSAGE_IDS | MESSAGE_ID, INSERTION_TIME, SENDER, SEQUENCE_NUMBER |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_NAMED_IDENTITIES | NAME, PK_HASH |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_NETWORK_PARAMETERS | HASH, EPOCH, PARAMETERS_BYTES, SIGNATURE_BYTES, CERT, PARENT_CERT_PATH |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_OUR_KEY_PAIRS | PUBLIC_KEY_HASH, PRIVATE_KEY, PUBLIC_KEY |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_PROPERTIES | PROPERTY_KEY, PROPERTY_VALUE |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_SCHEDULED_STATES | OUTPUT_INDEX, TRANSACTION_ID, SCHEDULED_AT |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| NODE_TRANSACTIONS | TX_ID, TRANSACTION_VALUE, STATE_MACHINE_RUN_ID |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| PK_HASH_TO_EXT_ID_MAP | ID, EXTERNAL_ID, PUBLIC_KEY_HASH |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| STATE_PARTY | OUTPUT_INDEX, TRANSACTION_ID, ID, PUBLIC_KEY_HASH, X500_NAME |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| VAULT_FUNGIBLE_STATES | OUTPUT_INDEX, TRANSACTION_ID, ISSUER_NAME, ISSUER_REF, OWNER_NAME, QUANTITY |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| VAULT_FUNGIBLE_STATES_PARTS | OUTPUT_INDEX, TRANSACTION_ID, PARTICIPANTS |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| VAULT_LINEAR_STATES | OUTPUT_INDEX, TRANSACTION_ID, EXTERNAL_ID, UUID |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| VAULT_LINEAR_STATES_PARTS | OUTPUT_INDEX, TRANSACTION_ID, PARTICIPANTS |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| VAULT_STATES | OUTPUT_INDEX, TRANSACTION_ID, CONSUMED_TIMESTAMP, CONTRACT_STATE_CLASS_NAME, LOCK_ID, LOCK_TIMESTAMP, NOTARY_NAME, RECORDED_TIMESTAMP, STATE_STATUS, RELEVANCY_STATUS, CONSTRAINT_TYPE, CONSTRAINT_DATA |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| VAULT_TRANSACTION_NOTES | SEQ_NO, NOTE, TRANSACTION_ID |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| V_PKEY_HASH_EX_ID_MAP | ID, PUBLIC_KEY_HASH, TRANSACTION_ID, OUTPUT_INDEX, EXTERNAL_ID |
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+-----------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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For more details see: :doc:`node-database-tables`.
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Database connection pool
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^^^^^^^^^^^^^^^^^^^^^^^^
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Corda uses `Hikari Pool <https://github.com/brettwooldridge/HikariCP>`_ for creating the connection pool.
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To configure the connection pool any custom properties can be set in the `dataSourceProperties` section.
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For example:
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.. sourcecode:: groovy
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dataSourceProperties = {
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dataSourceClassName = "org.postgresql.ds.PGSimpleDataSource"
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...
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maximumPoolSize = 10
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connectionTimeout = 50000
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}
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