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zettadb / kunlun

KunlunBase is a distributed relational database management system(RDBMS) with complete NewSQL capabilities and robust transaction ACID guarantees and is compatible with standard SQL. Applications which used PostgreSQL or MySQL can work with KunlunBase as-is without any code change or rebuild because KunlunBase supports both PostgreSQL and MySQL connection protocols and DML SQL grammars. MySQL DBAs can quickly work on a KunlunBase cluster because we use MySQL as storage nodes of KunlunBase. KunlunBase can elastically scale out as needed, and guarantees transaction ACID under error conditions, and KunlunBase fully passes TPC-C, TPC-H and TPC-DS test suites, so it not only support OLTP workloads but also OLAP workloads. Application developers can use KunlunBase to build IT systems that handles terabytes of data, without any effort on their part to implement data sharding, distributed transaction processing, distributed query processing, crash safety, high availability, strong consistency, horizontal scalability. All these powerful features are provided by KunlunBase. KunlunBase supports powerful and user friendly cluster management, monitor and provision features, can be readily used as DBaaS.
http://www.kunlunbase.com
Apache License 2.0
143 stars 19 forks source link

Internal error: communication channel in use #573

Open jd-zhang opened 2 years ago

jd-zhang commented 2 years ago

Issue migrated from trac ticket # 259

component: computing nodes | priority: major

2021-11-26 10:03:19: @vito4172 created the issue

sql code: DROP TABLE if exists SUBSELECT_TBL; CREATE TABLE SUBSELECT_TBL ( f1 integer, f2 integer, f3 float ); INSERT INTO SUBSELECT_TBL VALUES (1, 2, 3); INSERT INTO SUBSELECT_TBL VALUES (2, 3, 4); INSERT INTO SUBSELECT_TBL VALUES (3, 4, 5); INSERT INTO SUBSELECT_TBL VALUES (1, 1, 1); INSERT INTO SUBSELECT_TBL VALUES (2, 2, 2); INSERT INTO SUBSELECT_TBL VALUES (3, 3, 3); INSERT INTO SUBSELECT_TBL VALUES (6, 7, 8); INSERT INTO SUBSELECT_TBL VALUES (8, 9, NULL);

DROP table if exists INT4_TBL; CREATE TABLE INT4_TBL(f1 int4); INSERT INTO INT4_TBL(f1) VALUES (' 0 '); INSERT INTO INT4_TBL(f1) VALUES ('123456 '); INSERT INTO INT4_TBL(f1) VALUES (' -123456'); INSERT INTO INT4_TBL(f1) VALUES ('2147483647'); INSERT INTO INT4_TBL(f1) VALUES ('-2147483647');

select f1, ss1 as relabel from (select *, (select sum(f1) from int4_tbl b where f1 >= a.f1) as ss1 from int4_tbl a) ss;

psql:subselect.sql:274: ERROR: Kunlun-db: Internal error: communication channel in use.

expect:

 f1      |  relabel

-------------+------------ 0 | 2147607103 123456 | 2147607103 -123456 | 2147483647 2147483647 | 2147483647 -2147483647 | 0 (5 rows)

jd-zhang commented 2 years ago

2021-12-10 14:14:27: @david-zhao

jd-zhang commented 2 years ago

2021-12-10 14:14:27: @david-zhao changed owner from david to smith

jd-zhang commented 2 years ago

2021-12-10 14:14:27: @david-zhao changed status from new to assigned

jd-zhang commented 2 years ago

2021-12-28 16:04:08: smith changed status from assigned to accepted