[MDEV-13924] CONNECT engine table_type=JDBC very broken on 10.1.27 hangs SUSPECT POOLING Created: 2017-09-27 Updated: 2018-01-24 Resolved: 2017-10-11 |
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| Status: | Closed |
| Project: | MariaDB Server |
| Component/s: | Storage Engine - Connect |
| Affects Version/s: | 10.1.27 |
| Fix Version/s: | 10.0.33, 10.1.29, 10.2.10 |
| Type: | Bug | Priority: | Critical |
| Reporter: | Robert Dyas | Assignee: | Olivier Bertrand |
| Resolution: | Fixed | Votes: | 0 |
| Labels: | None | ||
| Environment: |
centos7 |
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| Description |
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I just upgraded from 10.1.26 (very stable) to 10.1.27 and CONNECT with JDBC table types is now hanging With pooling ON it seems to hang after maybe 8 to 10 queries. No error, just never returns. This would seem to correspond roughly to the default number of connections in the Apache pool. So suspect connections are no longer being free'ed aka closed. Non-connect tables CAN be queried. When I turn OFF pooling for the tables - i.e. recreate them without using the ApacheWrapper the system does not appear to hang (50 queries and still ok). So my wild guess is that something changed with how ApacheWrapper works, or possibly since the connections need to go back in the pool, maybe the connections in 10.1.27 are not getting a connection.close() or something. |
| Comments |
| Comment by Olivier Bertrand [ 2017-09-27 ] |
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Version 10.1.27 was recalled because of regression errors. Stay with MariaDB 10.1.26 until 10.1.28 is released. |
| Comment by Olivier Bertrand [ 2017-10-03 ] |
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Indeed, this is a regression bug. Thanks for reporting, it will be fixed asap. |
| Comment by Olivier Bertrand [ 2017-10-11 ] |
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