Rails Unique Key Violation with Multiple Instances
I am using this gem:
https://github.com/rails/activerecord-session_store
When I run multiple instances of the rails app, I get this error occurring:
PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "sessions_pkey"
DETAIL: Key (id)=(3005307) already exists.
: INSERT INTO "sessions" ("session_id", "data", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id"
The id column is generated by a sequence:
CREATE TABLE public.sessions
(
id integer NOT NULL DEFAULT nextval('sessions_id_seq'::regclass),
session_id character varying(255) COLLATE pg_catalog."default" NOT NULL,
data text COLLATE pg_catalog."default",
created_at timestamp without time zone,
updated_at timestamp without time zone,
CONSTRAINT sessions_pkey PRIMARY KEY (id)
)
WITH (
OIDS = FALSE
)
TABLESPACE pg_default;
Given this is the case, shouldn't the sequence guarantee uniqueness even if the inserts are happening from multiple processes?
ruby-on-rails postgresql
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
add a comment |
I am using this gem:
https://github.com/rails/activerecord-session_store
When I run multiple instances of the rails app, I get this error occurring:
PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "sessions_pkey"
DETAIL: Key (id)=(3005307) already exists.
: INSERT INTO "sessions" ("session_id", "data", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id"
The id column is generated by a sequence:
CREATE TABLE public.sessions
(
id integer NOT NULL DEFAULT nextval('sessions_id_seq'::regclass),
session_id character varying(255) COLLATE pg_catalog."default" NOT NULL,
data text COLLATE pg_catalog."default",
created_at timestamp without time zone,
updated_at timestamp without time zone,
CONSTRAINT sessions_pkey PRIMARY KEY (id)
)
WITH (
OIDS = FALSE
)
TABLESPACE pg_default;
Given this is the case, shouldn't the sequence guarantee uniqueness even if the inserts are happening from multiple processes?
ruby-on-rails postgresql
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
add a comment |
I am using this gem:
https://github.com/rails/activerecord-session_store
When I run multiple instances of the rails app, I get this error occurring:
PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "sessions_pkey"
DETAIL: Key (id)=(3005307) already exists.
: INSERT INTO "sessions" ("session_id", "data", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id"
The id column is generated by a sequence:
CREATE TABLE public.sessions
(
id integer NOT NULL DEFAULT nextval('sessions_id_seq'::regclass),
session_id character varying(255) COLLATE pg_catalog."default" NOT NULL,
data text COLLATE pg_catalog."default",
created_at timestamp without time zone,
updated_at timestamp without time zone,
CONSTRAINT sessions_pkey PRIMARY KEY (id)
)
WITH (
OIDS = FALSE
)
TABLESPACE pg_default;
Given this is the case, shouldn't the sequence guarantee uniqueness even if the inserts are happening from multiple processes?
ruby-on-rails postgresql
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
I am using this gem:
https://github.com/rails/activerecord-session_store
When I run multiple instances of the rails app, I get this error occurring:
PG::UniqueViolation: ERROR: duplicate key value violates unique constraint "sessions_pkey"
DETAIL: Key (id)=(3005307) already exists.
: INSERT INTO "sessions" ("session_id", "data", "created_at", "updated_at") VALUES ($1, $2, $3, $4) RETURNING "id"
The id column is generated by a sequence:
CREATE TABLE public.sessions
(
id integer NOT NULL DEFAULT nextval('sessions_id_seq'::regclass),
session_id character varying(255) COLLATE pg_catalog."default" NOT NULL,
data text COLLATE pg_catalog."default",
created_at timestamp without time zone,
updated_at timestamp without time zone,
CONSTRAINT sessions_pkey PRIMARY KEY (id)
)
WITH (
OIDS = FALSE
)
TABLESPACE pg_default;
Given this is the case, shouldn't the sequence guarantee uniqueness even if the inserts are happening from multiple processes?
ruby-on-rails postgresql
ruby-on-rails postgresql
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
asked Nov 20 '18 at 2:28
zorro2bzorro2b
1,13821833
1,13821833
add a comment |
add a comment |
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