75 lines
3.3 KiB
Markdown
75 lines
3.3 KiB
Markdown
# MariaDB MaxScale 2.1.7 Release Notes -- 2017-09-11
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Release 2.1.7 is a GA release.
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This document describes the changes in release 2.1.7, when compared to
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release [2.1.6](MaxScale-2.1.6-Release-Notes.md).
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If you are upgrading from release 2.0, please also read the following
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release notes:
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[2.1.6](./MaxScale-2.1.6-Release-Notes.md)
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[2.1.5](./MaxScale-2.1.5-Release-Notes.md)
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[2.1.4](./MaxScale-2.1.4-Release-Notes.md)
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[2.1.3](./MaxScale-2.1.3-Release-Notes.md)
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[2.1.2](./MaxScale-2.1.2-Release-Notes.md)
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[2.1.1](./MaxScale-2.1.1-Release-Notes.md)
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[2.1.0](./MaxScale-2.1.0-Release-Notes.md)
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For any problems you encounter, please consider submitting a bug
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report at [Jira](https://jira.mariadb.org).
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## Changed Features
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### Persistent connection statistics
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The output of `show servers` now shows the number of times a connection was
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taken from a server's pool as well as the ratio of connections taken from the
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pool versus newly created connections.
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### Logging
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When known, the session id will be included in all logged messages. This allows
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a range of logged messages related to a particular session (that is, client) to
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be bound together, and makes it easier to investigate problems. In practice this
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is visible so that if a logged message earlier looked like
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```
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2017-08-30 12:20:49 warning: [masking] The rule ...
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```
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it will now look like
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```
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2017-08-30 12:20:49 warning: (4711) [masking] The rule ...
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```
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where `4711` is the session id.
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## Bug fixes
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[Here is a list of bugs fixed in MaxScale 2.1.7.](https://jira.mariadb.org/issues/?jql=project%20%3D%20MXS%20AND%20issuetype%20%3D%20Bug%20AND%20status%20%3D%20Closed%20AND%20fixVersion%20%3D%202.1.7)
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* (MXS-1396)[https://jira.mariadb.org/browse/MXS-1396] Persistent connections hang with Percona Server 5.6.37-82.2-log
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* (MXS-1395)[https://jira.mariadb.org/browse/MXS-1395] SELECT NAMES FROM TABLE is not parsed completely
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* (MXS-1385)[https://jira.mariadb.org/browse/MXS-1385] Monitor script arguments can be truncated
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* (MXS-1384)[https://jira.mariadb.org/browse/MXS-1384] maxscale.cnf script field length limitation
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* (MXS-1380)[https://jira.mariadb.org/browse/MXS-1380] UNION is partially parsed
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* (MXS-1379)[https://jira.mariadb.org/browse/MXS-1379] Undefined outcome on schemarouter query conflict
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* (MXS-1375)[https://jira.mariadb.org/browse/MXS-1375] Reused connections get multiple replies to COM_CHANGE_USER
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* (MXS-1374)[https://jira.mariadb.org/browse/MXS-1374] Persistent connections can't be altered at runtime
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* (MXS-1366)[https://jira.mariadb.org/browse/MXS-1366] Abrupt disconnections with persistent connections
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* (MXS-1365)[https://jira.mariadb.org/browse/MXS-1365] Write to invalid memory in avrorouter
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* (MXS-1363)[https://jira.mariadb.org/browse/MXS-1363] Servers with zero weight aren't used by readconnroute
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* (MXS-1341)[https://jira.mariadb.org/browse/MXS-1341] binlog checksums break avrorouter processing
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## Packaging
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RPM and Debian packages are provided for the Linux distributions supported
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by MariaDB Enterprise.
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Packages can be downloaded [here](https://mariadb.com/resources/downloads).
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## Source Code
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The source code of MaxScale is tagged at GitHub with a tag, which is identical
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with the version of MaxScale. For instance, the tag of version X.Y.Z of MaxScale
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is maxscale-X.Y.Z.
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The source code is available [here](https://github.com/mariadb-corporation/MaxScale).
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