As temporary solution, is it possible to force pgpool to use v2 protocol
when communicating with backend?
No.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
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If yes, can pgpool at the same time use v3 protocol to communicate
Not sure. Haruka(maintainer of pgpool-HA) may know.
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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Can Pgpool-HA works with heartbeat-3.0.4?
Regards.
-Mensaje original-
De: Tatsuo Ishii [mailto:is...@sraoss.co.jp
Yes.
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Tatsuo Ishii
SRA OSS, Inc. Japan
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Tatsuo, Is Haruka a member of this email list?
Regards.
-Mensaje original-
De: Tatsuo Ishii [mailto:is...@sraoss.co.jp]
Enviado el: jueves, 24 de noviembre de
/pgpool/ssl/server.cert.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
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Hello everyone in the list, I am proving the connecting SSL through with
Pgpool, the pgpool configuration parameters related with SSL are:
# - SSL
Could you show logs after this:
2011-11-23 04:37:25 ERROR: pid 17472: pool_read: read failed (Success)
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Tatsuo Ishii
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Tatsuo, thank you very much for your answer, the problem was solved and now I
One possibility is client_idle_limit.
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Tatsuo Ishii
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I have found that sometimes the client connections get disconnected and the
new ones are established. What I do is I get the PIDs using
Looks normal. psql first tried with trust auth. Backend requires md5
auth and pool propagated to psql. psql disconnected connection to
pgpool and tried with md5 auth again. This time it was successfull.
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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Devrim is responsible for creating Redhat rpm for
pgpool, but I'm not sure he has done it for pgpool-HA.
3. Is there any documentation for configuring an environment with Pgpool-II
and Pgpool-HA?
It's included in the source code.
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Tatsuo Ishii
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English: http
complains about
it missing upon startup ...
Really? It's definitely included in pgpool-en.html coming with
pgpool-II source code.
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Not wanting to be impatient, but I'm very concerned about this
problem, since its impossible to predict when it will occur. Is there
additional information that I can provide to investigate this further?
I really need to know where pgpool is looping.
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Tatsuo Ishii
SRA OSS, Inc. Japan
On Wed, Nov 23, 2011 at 10:42 PM, Tatsuo Ishii is...@sraoss.co.jp wrote:
Not wanting to be impatient, but I'm very concerned about this
problem, since its impossible to predict when it will occur. Is there
additional information that I can provide to investigate this further?
I really need
in the sources. Please help.
Please do:
mkdir m4
then configure...
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Run libtoolize?
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Thanks. This goes ahead and fails at the following line:
make[2]: Leaving directory `/opt/pgpool-II/pcp'
make[2]: Entering directory `/opt/pgpool-II'
make[2
I think you'd better post to pgsql-general since your question is
nothing related to pgpool.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
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Greetings,
I'm running PostgreSQL-9.0.4 on a Linux-x86_64 cluster with 1 master
Hi, Ishii-san
I'm sorry for late response.
(2011/11/16 21:26), Tatsuo Ishii wrote:
Now, I'm testing pgpool-II 3.1.0, but I can't
test load-balancing with many clients.
Because pgpool-II uses a lot of memory.
When I've tried to test pgpool-II 3.0.4,
I could not finish the test too
On Sun, Nov 20, 2011 at 4:27 AM, Tatsuo Ishii is...@sraoss.co.jp wrote:
By enabling log_connections you have your client IP and pgpool child
pid in your log. Since the log for unable parse... includes pgpool
child pid, you can get client IP by checking pgpool child pid.
LOG: pid 4327
in 3.1.x.
3.2 will allow to use md5 auth with health_check_password for price
of discontinuing support for V2 protocol.
BTW, problem with SSL is totally different story. It seems someone
forgot to allow to use SSL with health checking and
make_persistent_db_connection()...
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Tatsuo Ishii
SRA OSS
On Sun, 2011-11-20 at 08:13 +0900, Tatsuo Ishii wrote:
Thank you very much for the answer.
Is there a plan for using sr_check_password in the next release of pgpool
3.1 series?
Yes, it's in my plan. Unless supporting sr_check_password is too
invasive...
Sorry, but I disagree. Either
to parse the query:
select select; from local client
Comments?
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
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diff --git a/child.c b/child.c
index 773b5c2..3dfa460 100644
--- a/child.c
+++ b/child.c
@@ -90,6 +90,9 @@ char
Thank you very much for the answer.
Is there a plan for using sr_check_password in the next release of pgpool 3.1
series?
Yes, it's in my plan. Unless supporting sr_check_password is too
invasive...
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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the query receives
an SQL exception (I/O error).
I hope this helps. If I can help you with anything else, let me know.
Regards,
silvio
-Original Message-
From: Tatsuo Ishii [mailto:is...@sraoss.co.jp]
Sent: 17. studeni 2011 0:33
To: Silvio Svečnjak
Cc: pgpool-general
: postgresql-9.1-901.jdbc4.jar
PostgreSQL 9.1.1
java-1.6.0-openjdk-1.6.0.0-4.b22vl6.x86_64
It would be helpfull if you give me standalone sample Java program and
table (and data if neccessary) which can reproduce the proble.
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Tatsuo Ishii
SRA OSS, Inc. Japan
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...
--
what do you have something idea about it?
良かったら、irc://irc.freenode.net/pgpool で、相談させて頂きたいですが・・・
2011/11/16 Tatsuo Ishii is...@sraoss.co.jp
Can you show me debug out? I mean run pgpool with -d -n option.
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Tatsuo Ishii
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English: http
Can you show me backtrace?
$ gdb pgpool core-file
(gdb)bt
I expect to get more usefull info because the core was generated by
your pgpool binary.
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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Hello!
Could you please
Test test... please ignore.
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Can you show me debug out? I mean run pgpool with -d -n option.
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yes, i am sure.
I tried it)
I tried a test how to change backend_hostname0 and backend_hostname1.
(like
I found this in your pgpool.conf:
pool_conn_dbname = 'postgres'
Any version of pgpool-II does not have the directive. Is your
pgpool-II a customized one?
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Tatsuo Ishii
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I see some more logs
.
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have moved from pgfoundry's CVS to
git.postgresql.org. Please take a look at Repository section on the
page.
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is not shows??
md5 is not allowed for sr_check_user and health_check_user at the
moment. Please use trust instead.
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top line is the latest
version of 3.1 stable. Click the right most link snapshot.
http://git.postgresql.org/gitweb/?p=pgpool2.git;a=snapshot;h=8b47d55274ddf66059867cf3eb912a2cd9f932b6;sf=tgz
You will get the tar ball.
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Tatsuo Ishii
SRA OSS, Inc. Japan
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to parse the query: select select;
I was hoping there was some way other than enabling log_connections,
as that's going to log every single connection (millions/day), even if
there's no error?
Good suggestion. I would like to include it for next release (3.2)
unless someone beats me.
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on the web for more details. In the whole process you don't
need to restart pgpool.
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pgpool-II 2.0.1 is pretty old (released 4 years ago) and is not
maintained any more. It had tons of bugs also. Please use the latest
stable version(3.1).
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
Our production server
One thing I did think about yesterday
If the node these statements are being sent to fails, then these
statements are going to blow up when they try to send to another node.
In this case pgpool restarts all children processes. That means all of
current sessions are restarting and you do
It seems the code tries to do what you said. There are many places
calling pool_create_sent_message(). In my understanding the function
tries to remember where Parse/Bind messges have been sent. For
example, Parse() calles like this:
msg = pool_create_sent_message('P', len,
Thank you for your reply!
But I have no way to change the request because the client proprietary.
Is it possible in pgpool or modify the query or not to send to slave?
Help white_function_list or black_function_list?
No.
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Tatsuo Ishii
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English: http://www.sraoss.co.jp
on the FAQ:
http://pgpool.projects.postgresql.org/FAQ.html
Please take a look at it.
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What I meant was, if you type pg_config, it executes or do you get
command not found?
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Tatsuo Ishii
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Yes pg_config is installed, and it is under /opt/pgsql/bin directory.
Pgpool is installed
self contained test case to
reproduce your problem?
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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So it's safe to say that there is not a large user base of people
pairing pgpool with java?
On 10/17/2011 08:21 PM, Tatsuo
Takahiro,
Any comment on this?
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Tatsuo Ishii
SRA OSS, Inc. Japan
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Greetings all, I'm new to the list.
I've been experimenting with pgpool since the 3.0.1 release.
We have never implemented this in production
Thank you for pointing it out. I'll send a correction.
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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The link sending download pgpoolAdmin Version 3.0.3.
The url for download pgpoolAdmin Version 3.1.0 from pgfoundry
of vsyslog which is not available in AIX (and
perhaps HP-UX). If there's no alternative for vsyslog in AIX, we have
to disable syslog functionality with AIX unless someone comes up with
more portable vsyslog implementation.
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
that means. I have pgpool2 v3.1.0 and the 3.0.3 pgpoolAdmin.
Hmm. In this context, Invalidation seem to mean Off, I think.
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Tatsuo Ishii
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That's because you enable parallel mode. In parallel mode, you can
replicate tables but this does not mean you are running in
replication mode.
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Tatsuo Ishii
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Not sure cause replication
after receiving SIGUSR1. Please try.
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Tatsuo Ishii
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Looks like this is the bit of code in question:
pool_log(starting recovering node %d, recovery_node);
if (VALID_BACKEND
to mistake to determine which is primary.
In summary, in your system WAL receiver process occasionally goes
down, and this trigger the error described above.
Pgpool-II 3.1 changes the logic to detect primary to solve the
problem. So my bet is upgrading to 3.1 will solve the problem.
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Tatsuo Ishii
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is the
master?
The master node is the node which is alive and has the least node
id. Not important in streaming replication mode(important in pgpool-II
native replication mode, though).
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to accomplish?
In streaming replication mode you essentially don't need to set
failback command. Of course if you want to be noticed by email in case
of the event happens for example, you could set it arbitrary shell
script.
Should have mentioned: I'm specifically asking about version 3.1.0.
--
Tatsuo
, pgpool-II sends pg_is_in_recovery() to
each node to look for a node which returns false. If a node returns
false, it is regarded as primary node.
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Tatsuo Ishii
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on master. The effect of vacuum will be applied to slaves
through streaming replication.
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and C.
I plan to
connect directly the database B instead of A until the server A restart.
What do you think ?
That should work.
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And don't forget to enable enable_pool_hba in pgpool.conf.
Regards,
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Tatsuo Ishii
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English: http://www.sraoss.co.jp/index_en.php
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I'm used pgpool-II with md5 authentication, you need to create a
pool_password file and enabling pool_hba
Hello,
Thanks for all your help!!!
I' ve two new problems with the same environment. I 've two balancers
nodes with Pgpool-II 3.0.3 instance and two SQL nodes with PostgreSQL
8.3.9 instance. I'm using Pgpool-II replication mode.
Alfresco is one of the applications witch send requests to
I restarted pgpool, after running the above. Please let me know if I
need to do anything else to resolve this.
It seems cuda-db0 lacks pgpool-walrecrunning.so. Have you ever installed it?
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On Fri, Sep 23, 2011 at 3:43 PM, Tatsuo Ishii is...@sraoss.co.jp wrote:
Ok. I think this is the cause of the problem:
2011-09-21 16:23:11 LOG: pid 23588: find_primary_node:
pgpool_walrecrunning does not exist
I think you did not install pgpool_walrecrunning() on DB node 2. In
this case
One comment. According to Toshihiro, the memory leak only occurs in
raw mode.
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Tatsuo Ishii
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Hi Glyn, takizo,
I created a patch to fix a massive memory leak of raw mode.
The patch which
for
analysis?
Yes, I'm interested. Please show me a backtrace.
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I checked a second of the coredumps, and it has the same backtrace.
Let me know if you need anything else. thanks!
Thanks. Can you show me pgpool log when DNS failed and pgpool died in
segfaulting?
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Please provide logging of pgpool and PostgreSQL when the problem
occured. In the mean time, I don't see particular problem with
PostgreSQL 8.3.9 and pgpool-II 3.0.3 combo.
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SRA OSS, Inc. Japan
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Hello
Pgpool-II is not responsible for replication itself when operated with
streaming replication. Are you sure that streaming replicaton is
working? If so, you'd better to send questions to postgresql-general.
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as 'stream', then I do not need this function., right?
No, you need this function when you use streaming replication
mode(master/Slave mode with sub mode as 'stream').
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in streaming
replication mode.
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Can you please show me more details about the issue?
That would be usefull info for those who are using HP.
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okay. That was some x/open socket issue on HP. Thanks guys
. You record 195 process ids and compare current
process ids. If some of them have been changed, we can assume that
child process is dying.
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Tatsuo Ishii
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On Wed, Sep 14, 2011 at 4:22 PM, Tatsuo Ishii is...@sraoss.co.jp wrote:
I'm pretty sure that's not the case as the messages stop whenever
pgpool isn't running, they were not present prior to using pgpool, and
pg_hba.conf is setup such that the database servers only accept
connections from
On Mon, Sep 12, 2011 at 6:47 PM, Lonni J Friedman netll...@gmail.com wrote:
On Mon, Sep 12, 2011 at 6:39 PM, Tatsuo Ishii is...@sraoss.co.jp wrote:
I couldn't find anything possibly related to your problem at a first
grance(in theory client_idle_limit and authentication_timeout
.
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is missing the updation and has bogus data.
To avoid this situation, you can use follow_master_command, which is
new in 3.1. Currently there's few explanation how to use it in the
docs. I'm going to write some tutorials how to use the new directive.
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English: http
://pgpool.projects.postgresql.org/pgpool-II/doc/pgpool-en.html and
pgpool-en.html coming the 3.1 source code.
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but guess that AIX has the definition of struct
timeval in sys/time.h. Included is a patch attempting to fix your
problem. Could you try it out?
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Index: pool.h
confused: am I supposed to be
installing walrecrunning to my databases, or not?
You don't need to install pgpool_walrecrunning any more.
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:
snprintf(weight_str,
sizeof(weight_str), %f, bi-backend_weight);
Just a guess though.
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it to other than 0, say 300,
pgpool-II will close the connection between pgpool-II and PostgreSQL,
which has been idle for 5 minutes. In this case pgpool-II will
reconnect if necessary as well.
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Are you able to connect to pgpool-II using psql?
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2011/8/16 Tatsuo Ishii is...@sraoss.co.jp:
What operation did you do when you were getting errors below? Did you
try to connect
This is an expected behavior. When one PostgreSQL servers goes down,
pgpool-II reset all session from clients to pgpool-II. Subsequent
session works normally.
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hi pgpool Expert
is specific to pgpool.
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it out. Backend_wight can be changed by reloading
pgpool.conf. So latter is correct. I will fix CVS HEAD and 3.0-stable
tree.
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?
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On Thu, Jul 28, 2011 at 10:40 PM, Tatsuo Ishii is...@sraoss.co.jp wrote:
Because newly added node is likely to have out of sync databases. Thus
bringing it online immediately will allow user to use obsolete
databases. You should do online recovery first.
Since the new slave being
that are working on other databases.
It's impossible with pgpool-II 3.0.x.
Upcoming pgpool-II 3.1 will not disconnect connections after online
recovery.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
On Thu, Jul 28, 2011 at 6:05 PM, Tatsuo Ishii is...@sraoss.co.jp wrote:
I have configured pgpool 3.0.3 in master/slave mode and setup
streaming
Note that pgpool-II 3.0.4 is the latest stable release.
I am using the version that EnterpriseDB bundles with PPAS (Postgres Plus
Advanced
Oh, we don't need the function at all on 9.1?
First, we need the function if we use native replcation mode. Second,
there are few use case which require the function even operated in
streaming replication mode.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
will be not be given
to the user who have same probalem as you until they upgrade
pgpool-II).
Of course we will look into the problem you pointed out in the mean time.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
From: Guillaume Lelarge guilla...@lelarge.info
Subject: Re: [Pgpool-general] We really need a change to the API for calling
recovery
Date: Thu, 21 Jul 2011 10:07:46 +0200
Message-ID: 1311235666.2018.11.camel@laptop
On Thu, 2011-07-21 at 16:29 +0900, Tatsuo Ishii wrote:
On Thu, 2011-07-21
, then the number of pgpool
process in total is 400, not 2000.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
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replication mode.
The exception is following case.
1) you have a temporary table called t1
2) you have public.pg_class
3) you want execute a query SELECT * FROM pg_class WHERE relname = 't1'
Without pgpool_regclass, the query might be sent to standby and may
return incorrect result.
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Tatsuo Ishii
SRA OSS
number at least.
If that's impossible for some reason, can we at least pass the master
address to the recovery script? Working without it is unnecessarily
difficult.
That would be easy. I would do it for 3.1.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
permission to these files and
continue the install procces.
Maybe SE-Linux thing?
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
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I don't have AIX here but I guess AIX does not have getopt_log() or
requires additional libraries?
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
Hi,
I've just tried to build pgpool 3.0.4 on AIX and I get the following error
= 1
backend_hostname0 = 'localhost'
backend_port0 = 5432
thanks
2011/7/7 Tatsuo Ishii is...@sraoss.co.jp
I have tried with your shell script with pgpool-II CVS HEAD. Between
16:56 and 17:26, about 30k SELECTs have
127.0.0.1(46350) idle
Thu Jul 7 17:26:43 JST 2011
F UID PID PPID PRI NIVSZ RSS WCHAN STAT TTYTIME COMMAND
148 29388 29356 20 0 23208 1912 ? S? 0:09 pgpool:
t-ishii postgres 127.0.0.1(46350) idle
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Tatsuo Ishii
SRA OSS, Inc
I am not familiar with Python and am not sure what kind of queries are
actually sent. How long did it take before observing the memory leak?
minutes? hours? days?
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
Hi,
I'm using
issue's
That requires system db is set properly. Please check related settings.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
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In this case you should have some error messages in the PostgreSQL
log. Can you show me them?
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
sir thanks for your reply,
for 1) i've created user health_check_user both primary
As I remarked earlier, I already changed DNS addresses, changed the Pgpool
port
to , as it was incorrectly set to 5432.
Sill not getting it to work. Any other suggestion you may have?
Can you show me pgpool's debug output(starting pgpool with -d option),
pgpool.conf?
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Tatsuo Ishii
forward to adding it to the FAQ. Of course patches
against documentations are always welcome.
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
Tatsuo,
As I understand to get option
replication_stop_on_mismatch = true
to work
You need to replace osspc17 and osspc18 part at least in
pgpool.conf unless you set PostgreSQL servers's hostnanmes exactly
same as in the tutorial.
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
Tatsuo Ishii ishii@... writes
?
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Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
Hello
I've got three nodes in pgpool-II:
sO21 - id:0
sO22 - id:1
db00 - id:2
replication_mode = true
load_balance_mode = true
replication_stop_on_mismatch = true
Hi,
Just out of curiosity, I would like to know if there is any user who
are using pgpool-II on HP-UX. Anybody?
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp
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