oracle-create-schema.sql and default reference.conf files mismatch

[Rafael Revi]

Versions used

Akka version: 2.6.13
akka-persistence-jdbc version: 5.0.0

Expected Behavior

1. Run the oracle-create-schema.sql script on a Oracle DB instance
2. Run a Akka app with persistence without overwriting the schema table and column name values from reference.conf in your application.conf
3. Success 🥳

Actual Behavior

1. Run the oracle-create-schema.sql script on a Oracle DB instance
2. Run a Akka app with persistence without overwriting the schema table and column name values from reference.conf in your application.conf
3. Failure 😭 with log statements like:

akka.persistence.typed.internal.JournalFailureException: Exception during recovery from snapshot. PersistenceId [SomeActor|some-actor-01]. ORA-00942: table or view does not exist

Relevant logs

N/A

Reproducible Test Case

N/A

For more history on this bug, INCLUDING POSSIBLE FIX see this forum post https://discuss.lightbend.com/t/akka-persistence-ora-00942-table-or-view-does-not-exist/8085

[Renato Cavalcanti]

Hi @rrevi,

Thanks for reporting this. You are correct on your comment in the discuss forum.

oracle-schema-overrides.conf is fixing this, but that only happens in our tests. Which also explains why we didn't see any issue.

I will check if we can use lowercase in the default create script. I think that's the best option. However I have a vague memory that @chbatey run into a issue with cases in Oracle and was forced to move it to uppercase.

[Christopher Batey]

From memory the Oracle JDBC driver doesn't support a prepared statement that returns a value for a table with a case sensitive name and it manifests its self as a table not found error

…

On Mon, Apr 12, 2021 at 11:11 AM Renato Cavalcanti ***@***.***> wrote: Hi @rrevi <https://github.com/rrevi>, Thanks for reporting this. You are correct on your comment in the discuss forum <https://discuss.lightbend.com/t/akka-persistence-ora-00942-table-or-view-does-not-exist/8085/6?u=octonato> . oracle-schema-overrides.conf is fixing this, but that only happens in our tests. Which also explains why we didn't see any issue. I will check if we can use lowercase in the default create script. I think that's the best option. However I have a vague memory that @chbatey <https://github.com/chbatey> run into a issue with cases in Oracle and was forced to move it to uppercase. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#523 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAOHYG7M6FJZH7YS2HQEGWDTILBO5ANCNFSM42RCNBUQ> .

[Karan Khanna]

Hi @octonato, @chbatey,

I am trying the same schema but with all the columns and table names in lower case. It works fine while reading from the tables but I am getting object "EVENT_JOURNAL" does not exist when it tries to insert.

Logs for the reference:

[DEBUG] 2021-07-23 11:11:50.962+0000 [slick.db-3] s.j.J.statement - Preparing insert statement (returning: ordering): insert into "event_journal" ("deleted","persistence_id","sequence_number","writer","write_timestamp","adapter_manifest","event_payload","event_ser_id","event_ser_manifest","meta_payload","meta_ser_id","meta_ser_manifest") values (?,?,?,?,?,?,?,?,?,?,?,?) [DEBUG] 2021-07-23 11:11:50.973+0000 [cloud-poi-ha-akka.persistence.dispatchers.default-plugin-dispatcher-53] s.b.B.action - #3: Rollback [ERROR] 2021-07-23 11:11:51.066+0000 [cloud-poi-ha-akka.actor.default-dispatcher-25] i.f.c.s.SaleSystem - Failed to persist event type [*Event] with sequence number [1] for persistenceId [*some-persistence-id*]. java.sql.SQLSyntaxErrorException: ORA-04043: object "EVENT_JOURNAL" does not exist

Any help how to go about this?

I am using the following for my schema:

`CREATE SEQUENCE EVENT_JOURNAL_ORDERING_SEQ START WITH 1 INCREMENT BY 1 NOMAXVALUE
/

CREATE TABLE "event_journal" (
"ordering" NUMERIC UNIQUE,
"deleted" CHAR(1) DEFAULT 0 NOT NULL check ("deleted" in (0, 1)),
"persistence_id" VARCHAR(255) NOT NULL,
"sequence_number" NUMERIC NOT NULL,
"writer" VARCHAR(255) NOT NULL,
"write_timestamp" NUMBER(19) NOT NULL,
"adapter_manifest" VARCHAR(255),
"event_payload" BLOB NOT NULL,
"event_ser_id" NUMBER(10) NOT NULL,
"event_ser_manifest" VARCHAR(255),
"meta_payload" BLOB,
"meta_ser_id" NUMBER(10),
"meta_ser_manifest" VARCHAR(255),
PRIMARY KEY("persistence_id", "sequence_number")
)
/

CREATE OR REPLACE TRIGGER EVENT_JOURNAL_ORDERING_TRG before insert on "event_journal" REFERENCING NEW AS NEW FOR EACH ROW WHEN (new."ordering" is null) begin select EVENT_JOURNAL_ORDERING_seq.nextval into :new."ordering" from sys.dual; end;
/

CREATE TABLE "event_tag" (
"event_id" NUMERIC NOT NULL,
"tag" VARCHAR(255) NOT NULL,
PRIMARY KEY("event_id", "tag"),
FOREIGN KEY("event_id") REFERENCES "event_journal"("ordering")
ON DELETE CASCADE
)
/

CREATE TABLE "snapshot" (
"persistence_id" VARCHAR(255) NOT NULL,
"sequence_number" NUMERIC NOT NULL,
"created" NUMERIC NOT NULL,
"snapshot_ser_id" NUMBER(10) NOT NULL,
"snapshot_ser_manifest" VARCHAR(255),
"snapshot_payload" BLOB NOT NULL,
"meta_ser_id" NUMBER(10),
"meta_ser_manifest" VARCHAR(255),
"meta_payload" BLOB,
PRIMARY KEY("persistence_id","sequence_number")
)
/

CREATE OR REPLACE PROCEDURE "reset_sequence"
IS
l_value NUMBER;
BEGIN
EXECUTE IMMEDIATE 'SELECT EVENT_JOURNAL_ORDERING_SEQ.nextval FROM dual' INTO l_value;
EXECUTE IMMEDIATE 'ALTER SEQUENCE EVENT_JOURNAL_ORDERING_SEQ INCREMENT BY -' || l_value || ' MINVALUE 0';
EXECUTE IMMEDIATE 'SELECT EVENT_JOURNAL_ORDERING_SEQ.nextval FROM dual' INTO l_value;
EXECUTE IMMEDIATE 'ALTER SEQUENCE EVENT_JOURNAL_ORDERING_SEQ INCREMENT BY 1 MINVALUE 0';
END;
/`