pgpool-II 4.7.0 Documentation
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# A.150. Release 3.7.5

> Release Date: 2018-07-31

## A.150.1. Bug fixes

- Allow not to use `pool_passwd` in raw mode. (bug 411) (Tatsuo Ishii)

  Since in raw there's only 1 backend is actually involved, there's no need to use pool_passwd with `md5` authentication.

- Fix "write on backend 0 failed with error :"Success"" error. (bug 403) (Tatsuo Ishii)

  Don't treated it as an error if `write()` returns 0.

- Fix for 0000409: worker process is not restarted after failover on standby Pgpool-II. (bug 409) (Muhammad Usama)

  Patch contributed by Yugo Nagata.

- Fix for 0000406: failover called with wrong old-primary. (bug 406) (Muhammad Usama)

- Fixed that the health check process was not started after failed back. (bug 407) (Tatsuo Ishii)

- Fix memory leaks related to `pool_extract_error_message()`. (Tatsuo Ishii)

- Fix an incorrect declare as bool, rather than int in `pool_extract_error_message()`. (Tatsuo Ishii)

  This led to a segfault issue mentioned on certain platform.

- Fix segfault in `per_node_error_log()` on armhf architecture. (Tatsuo Ishii)

  Patch provided by Christian Ehrhardt.

- Fix for wrong backend roles on standby after the failover. (Muhammad Usama)

- Doc: Improve documents of "MD5 Password Authentication", "Installing Pgpool-II" and "pg_md5".(Bo Peng)

  Patch provided by Takuma Hoshiai.

- Test: Fix 006.memqcache test failure. (Tatsuo Ishii)

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