pgpool2.git
7 years agoSome changes to SPEC file.
Bo Peng [Fri, 19 Oct 2018 02:33:49 +0000 (11:33 +0900)]
Some changes to SPEC file.

7 years agoSome changes to SPEC file.
Bo Peng [Fri, 19 Oct 2018 01:01:58 +0000 (10:01 +0900)]
Some changes to SPEC file.

7 years agoSome changes to release-note.
Bo Peng [Fri, 19 Oct 2018 00:53:25 +0000 (09:53 +0900)]
Some changes to release-note.

7 years agoFix syntax error in native replication, when queries including now() etc. and "IN...
Bo Peng [Thu, 18 Oct 2018 09:12:24 +0000 (18:12 +0900)]
Fix syntax error in native replication, when queries including now() etc. and "IN (SELECT ...)" in WHERE clause.

In native replication, queries including now() etc. are rewritten to a timestamp constant value.
However, Pgpool-II didn't support queries including now() etc. and "IN (SELECT ...)" in WHERE clause.

Per bug433.

7 years agoFix docuemnt typos and update release date.
Bo Peng [Thu, 18 Oct 2018 09:05:47 +0000 (18:05 +0900)]
Fix docuemnt typos and update release date.

7 years ago Change pgpool.spec file to install extension to server which supports LLVM JIT.
Bo Peng [Thu, 18 Oct 2018 08:51:13 +0000 (17:51 +0900)]
 Change pgpool.spec file to install extension to server which supports LLVM JIT.

7 years agoFix occasional less data returned to frontend.
Tatsuo Ishii [Fri, 12 Oct 2018 04:52:57 +0000 (13:52 +0900)]
Fix occasional less data returned to frontend.

While piggy-packing queries to system catalog data,
pool_push_pending_data() is responsible for pushing response from
backend. To judge whether pending data remains or not, it checks
socket fd of backend and dummy close message response (close
complete). Problem is, if the socket is not ready and accidentally
actual (non dummy) close message response is returned,
pool_push_pending_data() believes that there's no pending data any
more. As a result, some of pending data is not recovered after
returning to normal process.

The idea for fix is, use pending message data list. It records
messages from frontend, and it is expected that we will receive same
number of messages (or more -- e.g. execute message). So we can use
the data to make above judgment more robust for the case described
above.

Initial patch is created by Yugo Nagata. Fix to the patch for certain
cases by me.

See:
https://www.pgpool.net/mantisbt/view.php?id=432
for more details.

7 years agoFix memory leak when query cache enabled in streaming replication mode + extended...
Tatsuo Ishii [Thu, 11 Oct 2018 08:52:57 +0000 (17:52 +0900)]
Fix memory leak when query cache enabled in streaming replication mode + extended query case.

If BEGIN is executed in extended protocol, allocated temp buffer for
the command never discarded.  This is because in streaming replication
mode + extended query case, when handle_query_cache gets called at the
command complete timing, the reference counter to query context is not
0, which in turn prevents from calling
pool_discard_temp_query_cache().

In reality, we don't need to care about the query context here, so
let's proceed in streaming replication mode + extended query case.

Note that the memory leak case can be easily reproduced by "pgbench -M
extended" command (standard TPC-B).

7 years agodoc: add note to online recovery doc.
Tatsuo Ishii [Wed, 10 Oct 2018 04:05:39 +0000 (13:05 +0900)]
doc: add note to online recovery doc.

This warns that client_idle_limit_in_recovery must be smaller than
recovery_timeout.

7 years agoAdd "log_client_messages = on" to pursue occasional failure of 065 test.
Tatsuo Ishii [Tue, 9 Oct 2018 08:56:31 +0000 (17:56 +0900)]
Add "log_client_messages = on" to pursue occasional failure of 065 test.

Sometimes it fails with:

Exception in thread "main" org.postgresql.util.PSQLException: ResultSet not positioned properly, perhaps you need to call next.
at org.postgresql.jdbc.PgResultSet.checkResultSet(PgResultSet.java:2789)
at org.postgresql.jdbc.PgResultSet.getString(PgResultSet.java:1887)
at Main.main(Main.java:26)

7 years agoFix memory leak pointed out by Coverity.
Tatsuo Ishii [Tue, 9 Oct 2018 08:37:25 +0000 (17:37 +0900)]
Fix memory leak pointed out by Coverity.

7 years agoFix memory leak in trigger_failover_command.
Tatsuo Ishii [Tue, 9 Oct 2018 04:49:49 +0000 (13:49 +0900)]
Fix memory leak in trigger_failover_command.

Pointed out by Coverity.

7 years agoAllow to handle beta or rc version.
Tatsuo Ishii [Tue, 9 Oct 2018 01:47:24 +0000 (10:47 +0900)]
Allow to handle beta or rc version.

pgpool_setup failed to extract major version number if it includes non
numeric characters.

7 years agoFix memory leak when memory_cache_enabled = on and write SQLs are sent.
Bo Peng [Tue, 9 Oct 2018 00:20:39 +0000 (09:20 +0900)]
Fix memory leak when memory_cache_enabled = on and write SQLs are sent.

In a explicit transaction, we the SELECT results are cached in temporary buffer.
If a write SQL is sent which modifies the table, the temporary buffe should be reset.

7 years agoFix occasional failure in regression 065.bug152.
Tatsuo Ishii [Mon, 8 Oct 2018 22:50:03 +0000 (07:50 +0900)]
Fix occasional failure in regression 065.bug152.

In the test first create a table with some data, then query
it. However sometimes it seems replication delay causes the table
still not ready in standby. Since there's no reason we need to a
standby or slave for this particular test, let the test have only
primary/master.

7 years agoFix comment broken by pgindent.
Tatsuo Ishii [Fri, 5 Oct 2018 22:17:16 +0000 (07:17 +0900)]
Fix comment broken by pgindent.

7 years agoRevert "Fix comment broken by pgindent."
Tatsuo Ishii [Fri, 5 Oct 2018 22:12:50 +0000 (07:12 +0900)]
Revert "Fix comment broken by pgindent."

This reverts commit 228b20e43e7d719bb4acc5dc03e7c521f0099f3b.

7 years agoFix comment broken by pgindent.
Tatsuo Ishii [Fri, 5 Oct 2018 12:49:22 +0000 (21:49 +0900)]
Fix comment broken by pgindent.

7 years agoAdd "log_client_messages = on" to know more detailed info.
Tatsuo Ishii [Fri, 5 Oct 2018 08:38:47 +0000 (17:38 +0900)]
Add "log_client_messages = on" to know more detailed info.

We see occasional failure of the test. To know what's going on, the
new parameter in 4.0 should help a lot.

7 years agoFix memory leak pointed out by 2018/10/5 Coverity scan.
Tatsuo Ishii [Fri, 5 Oct 2018 02:10:08 +0000 (11:10 +0900)]
Fix memory leak pointed out by 2018/10/5 Coverity scan.

While processing command complete message in extended query/streaming
replication mode, failure to read from socket leads to memory leak.

7 years agoFix some coverity warnings.
Tatsuo Ishii [Thu, 4 Oct 2018 22:56:57 +0000 (07:56 +0900)]
Fix some coverity warnings.

CommandComplete.c: fix memory leak
pool_memqcache.c: fix access to already freed data

7 years agoFix regression test 024 failure.
Tatsuo Ishii [Thu, 4 Oct 2018 04:29:08 +0000 (13:29 +0900)]
Fix regression test 024 failure.

The generated SSL auth files, at least key files needed to be set
permissions to 600.

7 years agoFix document typo.
Bo Peng [Wed, 3 Oct 2018 02:46:54 +0000 (11:46 +0900)]
Fix document typo.

7 years agoTry to fix regression test 024 failure.
Tatsuo Ishii [Sat, 29 Sep 2018 13:13:05 +0000 (22:13 +0900)]
Try to fix regression test 024 failure.

It seems the valid period of root cert is default to now.
Set it to from now to 1 year after. See if this works.

7 years agoAdd cert authentication test.
Tatsuo Ishii [Fri, 28 Sep 2018 08:59:51 +0000 (17:59 +0900)]
Add cert authentication test.

7 years agoFix to add execution permission.
Tatsuo Ishii [Mon, 24 Sep 2018 07:25:06 +0000 (16:25 +0900)]
Fix to add execution permission.

The regression 071 script lacked execution permission.

7 years agoAdd EXECUTE/DEALLOCATE regression test.
Bo Peng [Fri, 21 Sep 2018 08:32:30 +0000 (17:32 +0900)]
Add EXECUTE/DEALLOCATE regression test.

Patch created by Takuma Hoshiai.

7 years agoEnable AM_MAINTAINER_MODE for master branch.
Bo Peng [Wed, 19 Sep 2018 06:06:50 +0000 (15:06 +0900)]
Enable AM_MAINTAINER_MODE for master branch.

7 years agoUpdate pgpool.spec. V4_0_0_BETA1 V4_0_0_BETA1_RPM
Bo Peng [Wed, 19 Sep 2018 04:10:40 +0000 (13:10 +0900)]
Update pgpool.spec.

7 years agoFix typos.
Bo Peng [Wed, 19 Sep 2018 03:57:46 +0000 (12:57 +0900)]
Fix typos.

7 years agoChange Makefile of pgpool_recovery.
Bo Peng [Wed, 19 Sep 2018 03:50:38 +0000 (12:50 +0900)]
Change Makefile of pgpool_recovery.

7 years agoPrepare 4.0beta1.
Bo Peng [Wed, 19 Sep 2018 03:31:17 +0000 (12:31 +0900)]
Prepare 4.0beta1.

7 years agoUpdate pgpool.spec file.
Bo Peng [Wed, 19 Sep 2018 03:09:26 +0000 (12:09 +0900)]
Update pgpool.spec file.

7 years agoSome changes to 4.0 release-note and update release-note version.
Bo Peng [Wed, 19 Sep 2018 03:07:49 +0000 (12:07 +0900)]
Some changes to 4.0 release-note and update release-note version.

7 years agoDoc: Add Japanese release-note for Pgpool-II 4.0, and change some documents about...
Takuma Hoshiai [Wed, 19 Sep 2018 00:57:51 +0000 (09:57 +0900)]
Doc: Add Japanese release-note for Pgpool-II 4.0, and change some documents about authentication.

7 years agoDisable AM_MAINTAINER_MODE.
Bo Peng [Wed, 19 Sep 2018 00:39:04 +0000 (09:39 +0900)]
Disable AM_MAINTAINER_MODE.

7 years agoAdd missing pgpool_recovery--1.0--1.1.sql file to update pgpool_recovery() function...
Bo Peng [Wed, 19 Sep 2018 00:25:31 +0000 (09:25 +0900)]
Add missing pgpool_recovery--1.0--1.1.sql file to update pgpool_recovery() function version to 1.1.

7 years agoAdd pgpool_recovery--1.1--1.2.sql file to update pgpool_recovery() function version.
Bo Peng [Tue, 18 Sep 2018 03:27:45 +0000 (12:27 +0900)]
Add pgpool_recovery--1.1--1.2.sql file to update pgpool_recovery() function version.

7 years agoFix kind mismatch error when DEALLOCATE statement is issued.
Bo Peng [Thu, 13 Sep 2018 08:30:58 +0000 (17:30 +0900)]
Fix kind mismatch error when DEALLOCATE statement is issued.

PREPARE should be add to pool_add_sent_message, so that EXECUTE and DEALLOCATE
can be sent to the same node as PREPARE.

See [pgpool-general: 6226] for more details.

7 years agoDowngrade warning to debug5 when AES/PLAIN password not found in pool_passwd.
Tatsuo Ishii [Thu, 13 Sep 2018 06:02:03 +0000 (15:02 +0900)]
Downgrade warning to debug5 when AES/PLAIN password not found in pool_passwd.

When health_check_password etc. is an empty string, Pgpool-II tries to
fetch AES/PLAIN password in pool_passwd. If other type of password
entry (actually it must be MD5), it warned it. However this is normal
setting till 3.7. Moreover, every time health check or streaming
replication delay check run, it emits the waring and the log file was
filled up with the message.

Solution is, downgrade the message to DEBUG5. Also add password type to
the message.

7 years agoAdd missing src/parser/scan.c file.
Bo Peng [Mon, 10 Sep 2018 02:56:18 +0000 (11:56 +0900)]
Add missing src/parser/scan.c file.

7 years agoFix buildfarm error of 023.ssl_connection.
Tatsuo Ishii [Mon, 10 Sep 2018 02:06:15 +0000 (11:06 +0900)]
Fix buildfarm error of 023.ssl_connection.

It seems CentOS6/7 recognizes "localhost" as IPv6 ::1.

2018-09-08 17:04:06: pid 21508: DETAIL:  no pg_hba.conf entry for host "::1", user "postgres", database "postgres", SSL on

So add following line to pg_hba.conf.

host    all             all             ::1/128                 trust

Let's see if buildfarm still complains.

7 years agoPrepare 4.0alpha2. V4_0_0_ALPHA2
Bo Peng [Thu, 6 Sep 2018 09:00:49 +0000 (18:00 +0900)]
Prepare 4.0alpha2.

7 years agoAdd some changes to 4.0 english release note.
Bo Peng [Thu, 6 Sep 2018 08:57:32 +0000 (17:57 +0900)]
Add some changes to 4.0 english release note.

7 years agoAdd japanese docs for changes about client authentication, and fix some doc typos.
Bo Peng [Thu, 6 Sep 2018 08:12:37 +0000 (17:12 +0900)]
Add japanese docs for changes about client authentication, and fix some doc typos.

Patch provided by Takuma Hoshiai.

7 years agoFix for 0000428: Secure TCP/IP Connections with SSL...
Muhammad Usama [Wed, 5 Sep 2018 06:55:00 +0000 (11:55 +0500)]
Fix for 0000428: Secure TCP/IP Connections with SSL...

check for empty string in pool_config->ssl_ca_cert before
trying to load root certificates

7 years agoAdd "Migration to Version 4.0" section to releasenote.
Bo Peng [Wed, 5 Sep 2018 05:19:57 +0000 (14:19 +0900)]
Add "Migration to Version 4.0" section to releasenote.

7 years agoMiscellaneous fixes in the area of SCRAM authentication.
Muhammad Usama [Tue, 4 Sep 2018 16:01:26 +0000 (21:01 +0500)]
Miscellaneous fixes in the area of SCRAM authentication.

The commit takes care of resource leak warnings reported by coverity
in the authentication module of Pgpool-II, Apart from doing the individual
resource leak fixes I have made the authentication system to use the temporary
memory context which gets deleted after the authentication is done.

In addition to the memory related fixes the commit also contains the following.

-- TEXT prefix support for specifying plain text passwords in configuration
and pool_passwd file.
-- Documentation updates to use plain text passwords with TEXT prefix.
-- Fix for 0000427: pg_enc emits wrong warnings
-- Fix for 0000426: Pgpool-II contines to emit warning messages

7 years agoAdd missing gram.c by previous commit.
Bo Peng [Thu, 30 Aug 2018 00:41:31 +0000 (09:41 +0900)]
Add missing gram.c by previous commit.

7 years agoAdd regression test for SSL connection.
Tatsuo Ishii [Wed, 29 Aug 2018 02:58:36 +0000 (11:58 +0900)]
Add regression test for SSL connection.

This tests SSL connection between frontend <--> Pgpool-II and
Pgpool-II <--> backend.

7 years agoImport PostgreSQL 11 beta3 parser.
Bo Peng [Tue, 28 Aug 2018 09:20:07 +0000 (18:20 +0900)]
Import PostgreSQL 11 beta3 parser.

7 years agoUnbreak pgpool_setup and regression tests against pre-10 PostgreSQL.
Tatsuo Ishii [Thu, 23 Aug 2018 12:12:29 +0000 (21:12 +0900)]
Unbreak pgpool_setup and regression tests against pre-10 PostgreSQL.

Commit 26446126f36dcd34ea9032ac934aafe63acc0eee broke pgpool_setup and
regression tests against pre-10 PostgreSQL because they unconditionally
use feature introduced in PostgreSQL 10, i.e. SCRAM authentication. To
fix this, check PostgreSQL version using initdb -v and not use
PostgreSQL 10 specific feature if PostgreSQL 9.6 or earlier is used.
In this case regression tests 020, 021 and 022 always success.

7 years agoUpdate copyright year.
Tatsuo Ishii [Wed, 22 Aug 2018 07:09:19 +0000 (16:09 +0900)]
Update copyright year.

7 years agoAdd notes regarding failover script.
Tatsuo Ishii [Wed, 22 Aug 2018 07:01:21 +0000 (16:01 +0900)]
Add notes regarding failover script.

It's not recommended to access against Pgpool-II itself from
failover/failback scripts.

7 years agoFix memory leak and typo in comments.
Tatsuo Ishii [Wed, 22 Aug 2018 04:24:08 +0000 (13:24 +0900)]
Fix memory leak and typo in comments.

7 years agoFix memory leak pointed out by Coverity.
Tatsuo Ishii [Tue, 21 Aug 2018 08:33:52 +0000 (17:33 +0900)]
Fix memory leak pointed out by Coverity.

7 years agoAdd missing new file to previous commit. V4_0_0_ALPHA1
Bo Peng [Mon, 20 Aug 2018 08:06:35 +0000 (17:06 +0900)]
Add missing new file to previous commit.

7 years agoMove pgproto header files to "include/pgproto".
Bo Peng [Mon, 20 Aug 2018 08:04:45 +0000 (17:04 +0900)]
Move pgproto header files to "include/pgproto".

7 years agoChange test file name to avoid make dist error due to too long file name.
Bo Peng [Mon, 20 Aug 2018 08:00:55 +0000 (17:00 +0900)]
Change test file name to avoid make dist error due to too long file name.

7 years agoChange distdir to include new files.
Bo Peng [Mon, 20 Aug 2018 07:25:20 +0000 (16:25 +0900)]
Change distdir to include new files.

7 years agoPrepare 4.0alpha1.
Bo Peng [Mon, 20 Aug 2018 05:36:43 +0000 (14:36 +0900)]
Prepare 4.0alpha1.

7 years agoChange follow_master_command description new master -> new primary.
Bo Peng [Mon, 20 Aug 2018 05:13:29 +0000 (14:13 +0900)]
Change follow_master_command description new master -> new primary.

7 years agoImprove 4.0 release note.
Bo Peng [Mon, 20 Aug 2018 05:07:08 +0000 (14:07 +0900)]
Improve 4.0 release note.

7 years agoAdd .gitignore to doc and doc.ja.
Bo Peng [Mon, 20 Aug 2018 04:49:44 +0000 (13:49 +0900)]
Add .gitignore to doc and doc.ja.

7 years agoAdd .gitignore to pgenc and pgproto.
Bo Peng [Mon, 20 Aug 2018 04:43:06 +0000 (13:43 +0900)]
Add .gitignore to pgenc and pgproto.
Patch provided by Jesper Pedersen.

7 years agoSome document updates for SCRAM authentication feature
Muhammad Usama [Sun, 19 Aug 2018 10:18:23 +0000 (15:18 +0500)]
Some document updates for SCRAM authentication feature

Patch contributed by Jesper Pedersen <jesper.pedersen@redhat.com>
against SCRAM branch and updated by me against master

7 years agoUse failover instead of fail-over pr fail_over
Muhammad Usama [Sun, 19 Aug 2018 09:46:49 +0000 (14:46 +0500)]
Use failover instead of fail-over pr fail_over

Fix mistakes where "fail_over" and "fail-over" were used instead of the
"failover". And that also includes a wrongly spelled configuration parameter
"fail_over_on_backend_error",
Now we throw a warning message when old config name fail_over_on_backend_error
is used instead of failover_on_backend_error,
Using the old config variable name will have no effect.

7 years agoRun pgindent.
Tatsuo Ishii [Fri, 17 Aug 2018 08:23:14 +0000 (17:23 +0900)]
Run pgindent.

Fix and unify indentation by using PostgreSQL 11's pgindent command.

7 years agoDeal with pgindent.
Tatsuo Ishii [Fri, 17 Aug 2018 04:29:54 +0000 (13:29 +0900)]
Deal with pgindent.

7 years agoAdd Pgpool-II 4.0 release note.
Bo Peng [Fri, 17 Aug 2018 05:44:05 +0000 (14:44 +0900)]
Add Pgpool-II 4.0 release note.

7 years agoFix test directory name typos.
Bo Peng [Fri, 17 Aug 2018 03:06:38 +0000 (12:06 +0900)]
Fix test directory name typos.

7 years agoAdd pgproto to Pgpool-II.
Bo Peng [Fri, 17 Aug 2018 02:56:52 +0000 (11:56 +0900)]
Add pgproto to Pgpool-II.

Now by installing pgpool, pgproto will also be installed.
Patch provided by Takuma Hoshiai.

7 years agoFeature: Add SCRAM and Certificate authentication support
Muhammad Usama [Thu, 16 Aug 2018 16:34:32 +0000 (21:34 +0500)]
Feature: Add SCRAM and Certificate authentication support

New feature to add scram and cert authentication method support in Pgpool-II.
Apart from supporting the new authentication methods the commit also includes
the following enhancements and changes in the authentication framework
of Pgpool-II

Different auth methods for frontend and backend for user session
================================================================
Now it possible to use different authentication method for client
application and backend PostgreSQL servers.
For example, a client application can use scram-sha-256 to connect to Pgpool-II
which in turn can use trust or md5 authentication to connect to
PostgreSQL backend for the same session.

Use MD5 and SCRAM without pool_passwd
=====================================
New configuration parameter allow_clear_text_frontend_auth, enables the Pgpool-II
to use clear-text-password authentication with frontend clients when pool_passwd
file does not contains the password for the connecting user.
For example: suppose PostgreSQL servers has a user named "some_user" which can
connect to database using SCRAM authentication, Now for this "some_user" to
connect to PostgreSQL using SCRAM through Pgpool-II we must have the some_user's
password stored in the pool_passwd file, but if in some case when pool_passwd does
not have the entry of "some_user" and allow_clear_text_frontend_auth is enabled
in the pgpool.conf then Pgpool-II will ask the connecting frontend to use
clear-text-password auth method for authentication, and after receiving the
password from the client, Pgpool-II will use that password to authenticate with
backend using the required SCRAM auth.

Note: allow_clear_text_frontend_auth only works when pool_hba.conf is not enabled.

Encrypted passwords in pool_passwd file
=======================================
Since the SCRAM authentication method explicitly guards against the
man-in-middle type attacks, so to use such authentication methods Pgpool-II
requires the PostgreSQL user password to authenticate with the backend.
But as storing the clear text password in the "pool_passwd" file is never a good
idea, so now you can store the AES256-CBC encrypted password in the "pool_passwd".
To store the AES encrypted password in the "pool_passwd" the password is first
encrypted using the AES256 encryption with the user provided key and then the
encrypted password is base64 encoded and AES prefix is added to
the encoded string.

New pg_enc utility to create encrypted passwords
================================================
A new utility pg_enc is added to create AES encrypted passwords. The utility
works similar in most ways as pg_md5 utility, with a some small differences,
pg_enc also requires the key for encrypting the password entries. later that
same key is required by Pgpool-II to decrypt the passwords to be used for
authentication.

Note: Pgpool-II must be build with ssl (--with-openssl) support to use
this encrypted password feature.

Providing encryption key to Pgpool-II
=====================================
If you have AES encrypted passwords stored in the pool_passwd file, then
Pgpool-II will require the decryption key to decrypt the passwords before
using them, Pgpool-II tries to read the decryption key at startup from
the pgpoolkey file.
By default the Pgpool-II will look for the pgpoolkey file in user's home
directory or the file referenced by environment variable PGPOOLKEYFILE.
You can also specify the key file using the (-k, --key-file=KEY_FILE)
command line argument to the Pgpool-II binary.

Encrypted Passwords in pgpool.conf
==================================
The commit also allows to specify the AES encrypted password in the pgpool.conf
file for healh_check_user, sr_check_user, wd_lifecheck_user and recovery_user
users, Additionally if the password field for any of these users is left blank
in pgpool conf then Pgpool-II will first try to get the password for that user
from pool_passwd file before using the empty password for the connection.
So now pgpool.conf can be made password free and single pool_passwd file can be
used to store all passwords for internal and external user connection

Documentation updates and regression test cases for the
feature are also part of the commit.
Thanks to jesperpedersen <jesper.pedersen@redhat.com> for helping
in documentation and testing for the feature

7 years agoFix too small buffer size in some configuration file process.
Tatsuo Ishii [Thu, 16 Aug 2018 06:38:33 +0000 (15:38 +0900)]
Fix too small buffer size in some configuration file process.

This was found by newer version of gcc warnings.

pool_config_variables.c: In function ‘BackendFlagsShowFunc’:
pool_config_variables.c:3809:57: warning: ‘__builtin_snprintf’ output truncated before the last format character [-Wformat-truncation=]
   snprintf(buffer, sizeof(buffer), "DISALLOW_TO_FAILOVER");
                                                         ^
In file included from /usr/include/stdio.h:862:0,
                 from pool_config_variables.c:1:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note: ‘__builtin_snprintf’ output 21 bytes into a destination of size 20
   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        __bos (__s), __fmt, __va_arg_pack ());
        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

7 years agoImprove documetation about "black_query_pattern_list".
Bo Peng [Wed, 15 Aug 2018 00:13:11 +0000 (09:13 +0900)]
Improve documetation about "black_query_pattern_list".

7 years agoImprove pg_md5 docs and error message.
Bo Peng [Tue, 14 Aug 2018 13:43:49 +0000 (22:43 +0900)]
Improve pg_md5 docs and error message.

Patch provided by Jesper Pedersen and modified by me.

7 years agoFix that if the last character of black_query_pattern_list is not ";",
Bo Peng [Fri, 10 Aug 2018 09:12:45 +0000 (18:12 +0900)]
Fix that if the last character of black_query_pattern_list is not ";",
the last SQL pattern was ignored.

Now wether or not the last character ";" exists, the SQL patterns
will be correctly handled.

7 years agoFix document example errors about "black_query_pattern_list".
Bo Peng [Fri, 10 Aug 2018 06:22:49 +0000 (15:22 +0900)]
Fix document example errors about "black_query_pattern_list".

7 years agoAdd some comments about performance to "black_query_pattern_list" docs.
Bo Peng [Fri, 10 Aug 2018 05:02:21 +0000 (14:02 +0900)]
Add some comments about performance to "black_query_pattern_list" docs.

7 years agoAdd definition of PGLIB in regress.sh.
Bo Peng [Fri, 10 Aug 2018 04:16:02 +0000 (13:16 +0900)]
Add definition of PGLIB in regress.sh.
Patch provided by Jesper Pedersen.

7 years agoUpdate clean.sh which clean up regression test results.
Bo Peng [Fri, 10 Aug 2018 03:40:10 +0000 (12:40 +0900)]
Update clean.sh which clean up regression test results.

Patch provided by Jesper Pedersen.

7 years agoAdd .gitignore files.
Bo Peng [Fri, 10 Aug 2018 03:34:32 +0000 (12:34 +0900)]
Add .gitignore files.

Patch provided by Jesper Pedersen.

7 years agoUpdate expected data to adopt the lastest version of pgproto.
Tatsuo Ishii [Thu, 9 Aug 2018 05:01:35 +0000 (14:01 +0900)]
Update expected data to adopt the lastest version of pgproto.

7 years agoFix regression test 008.dbredirect error.
Bo Peng [Wed, 8 Aug 2018 03:42:13 +0000 (12:42 +0900)]
Fix regression test 008.dbredirect error.

7 years agoFeature: allow to specify load balance weight ratio for load balance parameters.
Bo Peng [Tue, 7 Aug 2018 01:07:24 +0000 (10:07 +0900)]
Feature: allow to specify load balance weight ratio for load balance parameters.

Add a new feature to allow to specify load balance weight ratio for
"database_redirect_preference_list" and "app_name_redirect_preference_list"
parameters.

You can specify the list of "database-name:node id(ratio)" pairs to
send SELECT queries to a particular backend node for a particular
database connection at a specified load balance ratio.
Also you can specify list of "application-name:node id(ratio)" pairs to
send SELECT queries to a particular backend node for a particular client
application connection at a specified load balance ratio.

This load balance ratio specifies a value between 0 and 1,
and the default is 1.0.

For example, by specifying "database_redirect_preference_list = 'test:1(0.5)'",
Pgpool-II will redirect 50% SELECT queries to the backend node of ID 1
for the connection to "test" database. And the other 50% SELECT queries
will be sent to other backend nodes.

7 years agoFix segfault when node 0 is in down status.
Tatsuo Ishii [Sun, 5 Aug 2018 01:54:18 +0000 (10:54 +0900)]
Fix segfault when node 0 is in down status.

MASTER_CONNECTION refers to the connection to "master"
node. "Master" means the first live backend appearing in
pgpool.conf. The master node is determined at the time of fail over.
Unfortunately with both health check and fail_over_on_backend_error
are disabled, there's no chance of failover, which means the master
node id is remained the default value 0. So the MASTER_CONNECTION
refers to the node 0, and the connection is NULL.

Fix is as follows.

If attempt to connection to backend fails, check the master node id in
the shared memory.  If the master node id is the failed node, then
look for new master node using get_next_master_node (this was a static
function, but now it's made to public) and set the node id to the
master node id in the shared memory area.

Problem reported by Muhammad Usama in [pgpool-hackers: 2905].

7 years agoFix typos in documents and scripts.
Tatsuo Ishii [Fri, 3 Aug 2018 02:09:30 +0000 (11:09 +0900)]
Fix typos in documents and scripts.

Patch contributed by Jesper Pedersen.

7 years agoFix redundant messages in log_client_messages.
Tatsuo Ishii [Thu, 2 Aug 2018 00:39:33 +0000 (09:39 +0900)]
Fix redundant messages in log_client_messages.

Patch contributed by Takuma Hoshiai.

7 years agoFix redundant messages when log_client_messages is enabled.
Tatsuo Ishii [Wed, 1 Aug 2018 07:42:46 +0000 (16:42 +0900)]
Fix redundant messages when log_client_messages is enabled.

Also add missing test files in the previous commit.
Patch contributed by Takuma Hoshiai.

7 years agoFix compiler error if HAVE_ASPRINTF is not defined.
Tatsuo Ishii [Tue, 31 Jul 2018 01:16:10 +0000 (10:16 +0900)]
Fix compiler error if HAVE_ASPRINTF is not defined.

7 years agoFix badly formatted comment out line.
Tatsuo Ishii [Tue, 31 Jul 2018 01:13:53 +0000 (10:13 +0900)]
Fix badly formatted comment out line.

7 years agoFix configure.ac to remove generating src/sql/pgpool_adm/Makefile.in.
Tatsuo Ishii [Tue, 31 Jul 2018 01:10:26 +0000 (10:10 +0900)]
Fix configure.ac to remove generating src/sql/pgpool_adm/Makefile.in.

Along with newer autoconf generated files.

7 years agoRemove unnecessary files.
Tatsuo Ishii [Tue, 31 Jul 2018 00:49:37 +0000 (09:49 +0900)]
Remove unnecessary files.

7 years agoAdd missing last newline.
Tatsuo Ishii [Tue, 31 Jul 2018 00:38:37 +0000 (09:38 +0900)]
Add missing last newline.

I have found this while playing with pgindent. It is smart enough to
find out such problems.

7 years agoAdd release-notes 3.3.22-3.7.5.
Bo Peng [Tue, 31 Jul 2018 00:02:15 +0000 (09:02 +0900)]
Add release-notes 3.3.22-3.7.5.

7 years agoAdd new log_client_messages directive.
Tatsuo Ishii [Fri, 27 Jul 2018 08:35:41 +0000 (17:35 +0900)]
Add new log_client_messages directive.

This allows to log messages from frontend.

Note that the regression test for this (019.log_client_messages)
requires pgproto command.  We will eventually import pgproto in the
future but for now we just check the existence of pgproto in
019.log_client_messages/test.sh. If pgproto does not exist in the
command search pass, just skip the test with "ok" status.

Patch contributed by Takuma Hoshiai.

7 years agoFix document typos.
Bo Peng [Tue, 24 Jul 2018 04:45:11 +0000 (13:45 +0900)]
Fix document typos.
Patch provided by Takuma Hoshiai.

7 years agoFix document typo.
Bo Peng [Tue, 24 Jul 2018 00:05:53 +0000 (09:05 +0900)]
Fix document typo.

7 years agoFix accessing already freed data in extended query.
Tatsuo Ishii [Fri, 13 Jul 2018 08:36:00 +0000 (17:36 +0900)]
Fix accessing already freed data in extended query.

When previous_message was set and accessed later on, it looked into
already freed data. This is because read_kind_from_backend() set the
pointer to the previous message in session context, and then released
the memory at the end of the function. No report from fields so far. I
just found this while testing Pgpool-II.

To fix this, store the previous message in the session context, rather
than storing the pointer. Also have a flag in the session context to
indicate whether a previous message is actually stored or not.

All the API for previous message has not been changed.

7 years agoTry to reduce the chance of regression 006.memcache failure.
Tatsuo Ishii [Wed, 11 Jul 2018 01:16:07 +0000 (10:16 +0900)]
Try to reduce the chance of regression 006.memcache failure.

It seems the occasional failure of the test is caused by replication
lag.  The script tries to read tables from standby but it returns a
table not existing error.  So insert pg_sleep() after creation of
tables.