[pgpool-general: 1502] Re: pgpool and md5 auth possible bug

Tatsuo Ishii ishii at postgresql.org
Fri Mar 15 09:19:31 JST 2013 

Does not reproduce here.

pool_hba.conf:
# TYPE  DATABASE    USER        CIDR-ADDRESS          METHOD
host    test         foo         127.0.0.1/32          md5
local    test         foo                  md5
# "local" is for Unix domain socket connections only
local   all         all                               trust
# IPv4 local connections:
host    all         all         127.0.0.1/32          trust

pool_passwd:
foo:md5

Lazaro,

Can you reproduce the problem there?
--
Tatsuo Ishii
SRA OSS, Inc. Japan
English: http://www.sraoss.co.jp/index_en.php
Japanese: http://www.sraoss.co.jp

> Oppss, the md5 sum is not present?? 
> 
> toto:md5 without the sum?? 
> 
> This very strange?. 
> 
> Is this a bug? 
> 
> Regards. 
> 
> ----- Mensaje original -----
> 
>> I agree with 2nd and 3rd trys, i created it to show something wrong
>> with last one .
>> I disagree with 4th because the file is only :
> 
>> toto:md5
> 
>> Nothing behind md5. So pgpool didn't check the password and let
>> connection going to PG and be checked.
> 
>> Regards.
> 
>> > ----- Original Message -----
>> 
>> > From: Lazaro Ruben Garcia Martinez
>> 
>> > Sent: 03/14/13 05:05 PM
>> 
>> > To: uruvela of india
>> 
>> > Subject: Re: [pgpool-general: 1485] pgpool and md5 auth
>> 
> 
>> > 2nd launch : changing md5 to reject in pool_hba.conf (restarting
>> > pgpool) : DBI connect('dbname=mydb','toto',...) failed: ERROR: no
>> > pool_hba.conf entry for host "[local]", user "toto", database
>> > "mydb"
>> > at dbi.pl line 5
>> 
> 
>> > If you use md5, You have to use md5 between clients and pgpool and
>> > between pgpool and postgresql. That is the reason for
>> 
>> > 2nd launch error.
>> 
>> > > > > 3rd launch : back to md5 in pool_hba.conf and changing toto
>> > > > > by
>> > > > > tito
>> > > > > in pool_passwd (restarting pgpool) : DBI
>> > > > > connect('dbname=mydb','toto',...) failed: ERROR: "MD5"
>> > > > > authentication with pgpool failed for user "toto" at dbi.pl
>> > > > > line
>> > > > > 5
>> > > > 
>> > > 
>> > 
>> 
>> > > > Role tito is not present in postgresql server, that is the
>> > > > reason
>> > > > of
>> > > > this error.
>> > > 
>> > 
>> 
>> > > > > 4th launch : back to toto vs tito in pool_passwd and deleted
>> > > > > everything after md5 (now pool_passwd is like this
>> > > > > 'toto:md5')
>> > > > > +
>> > > > > restarting pgpool : working.
>> > > > 
>> > > 
>> > 
>> 
>> > > > This is the expected behavior.
>> > > 
>> > 
>> 
>> > Regards.
>> 
>> > ----- Mensaje original -----
>> 
> 
>> > > No error with pool_passwd (i'm sure the file is ok if you looking
>> > > 3rd
>> > > try and username change with error).
>> > 
>> 
> 
>> > > I create md5 hashing with tutorial (pg_md5 etc...)
>> > 
>> 
> 
>> > > postgresql log is ok (md5 checking is good)
>> > 
>> 
> 
>> > > > ----- Original Message -----
>> > > 
>> > 
>> 
>> > > > From: Lazaro Ruben Garcia Martinez
>> > > 
>> > 
>> 
>> > > > Sent: 03/14/13 04:39 PM
>> > > 
>> > 
>> 
>> > > > To: uruvela of india
>> > > 
>> > 
>> 
>> > > > Subject: Re: [pgpool-general: 1485] pgpool and md5 auth
>> > > 
>> > 
>> 
> 
>> > > > Is there any line in the log file with some information related
>> > > > with
>> > > > pool_password file?
>> > > 
>> > 
>> 
> 
>> > > > What does postgresql say in log file?
>> > > 
>> > 
>> 
> 
>> > > > Do you create the pool_password file as pgpool tutorial says,
>> > > > or
>> > > > just
>> > > > copy and paste the md5 from pg_authid of postgres server to
>> > > > pool_password, my advice, delete the pool_password and create
>> > > > it
>> > > > again follows the steps in pgpool tutorial.
>> > > 
>> > 
>> 
> 
>> > > > Regards.
>> > > 
>> > 
>> 
>> > > > ----- Mensaje original -----
>> > > 
>> > 
>> 
> 
>> > > > > I m looking to install last stable version .
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > example of my log in debug mode :
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > loading "/etc/pgpool2/pool_hba.conf" for client
>> > > > > authentication
>> > > > > configuration file
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pgpool-II successfully started. version 3.2.2 (namameboshi)
>> > > > 
>> > > 
>> > 
>> 
>> > > > > ...
>> > > > 
>> > > 
>> > 
>> 
>> > > > > Protocol Major: 3 Minor: 0 database: mydb user: toto
>> > > > 
>> > > 
>> > 
>> 
>> > > > > new_connection: connecting 0 backend
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_ssl: SSL requested but SSL support is not available
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length: slot: 0 length: 12
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_do_auth: auth kind:5
>> > > > 
>> > > 
>> > 
>> 
>> > > > > trying md5 authentication
>> > > > 
>> > > 
>> > 
>> 
>> > > > > : DB node id: 0 salt: 657c38
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 22
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: application_name value:
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 25
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: client_encoding value: UTF8
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 23
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: DateStyle value: ISO, DMY
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 25
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: integer_datetimes value: on
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 27
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: IntervalStyle value: postgres
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 21
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: is_superuser value: off
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 25
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: server_encoding value: UTF8
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 25
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: server_version value: 9.2.3
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 31
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: session_authorization value: toto
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 36
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: standard_conforming_strings value: off
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length2: master slot: 0 length: 17
>> > > > 
>> > > 
>> > 
>> 
>> > > > > 0 th backend: name: TimeZone value: GMT
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_read_message_length: slot: 0 length: 12
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_do_auth: cp->info[i]:0x7fbc47d7c800 pid:29617
>> > > > 
>> > > 
>> > 
>> 
>> > > > > pool_send_auth_ok: send pid 29617 to frontend
>> > > > 
>> > > 
>> > 
>> 
>> > > > > select_load_balancing_node: selected backend id is 0
>> > > > 
>> > > 
>> > 
>> 
>> > > > > selected load balancing node: 0
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > ----- Original Message -----
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > From: Lazaro Ruben Garcia Martinez
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > Sent: 03/14/13 04:05 PM
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > To: uruvela of india
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > Subject: Re: [pgpool-general: 1485] pgpool and md5 auth
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > Could you install the most stable release of 3.2 series,
>> > > > > > 3.2.3,
>> > > > > > because this realease has some bugs fixed.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > Enabled the debug mode in the pgpool.conf.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > start pgpool like this: pgpool -a pool_hba_file -d -f
>> > > > > > pgpool_config_file
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > In debug mode you should see any kind of information about
>> > > > > > the
>> > > > > > autentication process.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > In any moments I had been the same problem but it was
>> > > > > > related
>> > > > > > with
>> > > > > > the configuration access (chmod and shown comands) over the
>> > > > > > pool_hba.conf and pool_password file.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > Another reasons, If you have 2 pg servers or more, each
>> > > > > > server
>> > > > > > need
>> > > > > > to has the same autentication configuration.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > Regards.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > Sorry for my poor english.
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > ----- Mensaje original -----
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > Pgpool log say everything ok, that's seems weird because
>> > > > > > > md5
>> > > > > > > crypt
>> > > > > > > is
>> > > > > > > wrong so i cant' understand why it's working in this
>> > > > > > > case.
>> > > > > > > I
>> > > > > > > feel
>> > > > > > > a
>> > > > > > > huge mistake from myself but i can't see where .
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > Pgpool connection vs pg server is ok (everything work
>> > > > > > > well
>> > > > > > > with
>> > > > > > > pg
>> > > > > > > client).
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > Regards.
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > ----- Original Message -----
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > From: Lazaro Ruben Garcia Martinez
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > Sent: 03/14/13 03:27 PM
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > To: uruvela of india
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > Subject: Re: [pgpool-general: 1485] pgpool and md5 auth
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > What says pgpool log file?
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > Regards.
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > Would you try to connect to pg server from pgpool
>> > > > > > > > machine,
>> > > > > > > > but
>> > > > > > > > only
>> > > > > > > > from pgpool machine for testing is the pg service could
>> > > > > > > > accept
>> > > > > > > > connections from this machine??
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > Regards.
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > ----- Mensaje original -----
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > Hi,
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > I'm looking for some help with MD5 authentification
>> > > > > > > > > in
>> > > > > > > > > pgpool.
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > 1st :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > pgpool-II version 3.2.2 (namameboshi)
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > PG 9.2.3
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > * On PG server : I create a toto role with encrypted
>> > > > > > > > > password,
>> > > > > > > > > and
>> > > > > > > > > add this line in pg_hba.conf :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > host mydb toto my_pgpool_ip/32 md5
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > Restarting PG.
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > * On pgpool server :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > pgpool.conf :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > enable_pool_hba = on
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > pool_passwd = 'pool_passwd'
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > Create toto md5 password in pool_passwd :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > toto:md5cb926329843e9a8f3eb15e0a2a5c9851
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > Checking same thing in PG in pg_authid :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > | toto | md5cb926329843e9a8f3eb15e0a2a5c9851 |
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > pool_hba.conf :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > add this line : local mydb toto md5
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > 2nd :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > Starting pgpool.
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > Using perl script dbi.pl to test on pgpool server :
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > use DBI;
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $DB_name = 'mydb';
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $DB_user = 'toto';
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $DB_pwd = 'mypassword';
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $dbh =
>> > > > > > > > > DBI->connect("dbi:Pg:dbname=$DB_name","$DB_user","$DB_pwd");
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > if ( !defined $dbh ) { die "Cannot connect to
>> > > > > > > > > database!\n";
>> > > > > > > > > }
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $sth = $dbh->prepare("SELECT * FROM pg_user");
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $sth->execute();
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > while ( ($id,$name) = $sth->fetchrow_array() ) {
>> > > > > > > > > print
>> > > > > > > > > "$id\t\t
>> > > > > > > > > $name
>> > > > > > > > > \n";
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > }
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $sth->finish();
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > $dbh->disconnect();
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > 1st launch : working
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > 2nd launch : changing md5 to reject in pool_hba.conf
>> > > > > > > > > (restarting
>> > > > > > > > > pgpool) : DBI connect('dbname=mydb','toto',...)
>> > > > > > > > > failed:
>> > > > > > > > > ERROR:
>> > > > > > > > > no
>> > > > > > > > > pool_hba.conf entry for host "[local]", user "toto",
>> > > > > > > > > database
>> > > > > > > > > "mydb"
>> > > > > > > > > at dbi.pl line 5
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > 3rd launch : back to md5 in pool_hba.conf and
>> > > > > > > > > changing
>> > > > > > > > > toto
>> > > > > > > > > by
>> > > > > > > > > tito
>> > > > > > > > > in pool_passwd (restarting pgpool) : DBI
>> > > > > > > > > connect('dbname=mydb','toto',...) failed: ERROR:
>> > > > > > > > > "MD5"
>> > > > > > > > > authentication with pgpool failed for user "toto" at
>> > > > > > > > > dbi.pl
>> > > > > > > > > line
>> > > > > > > > > 5
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > 4th launch : back to toto vs tito in pool_passwd and
>> > > > > > > > > deleted
>> > > > > > > > > everything after md5 (now pool_passwd is like this
>> > > > > > > > > 'toto:md5')
>> > > > > > > > > +
>> > > > > > > > > restarting pgpool : working.
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
> 
>> > > > > > > > > I miss something i'm sure :) but why it's working in
>> > > > > > > > > 4th
>> > > > > > > > > try
>> > > > > > > > > ?
>> > > > > > > > > It's
>> > > > > > > > > seems only PG server do it's authentification job's.
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > _______________________________________________
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > pgpool-general mailing list
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > pgpool-general at pgpool.net
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>> 
>> > > > > > > > > http://www.pgpool.net/mailman/listinfo/pgpool-general
>> > > > > > > > 
>> > > > > > > 
>> > > > > > 
>> > > > > 
>> > > > 
>> > > 
>> > 
>>

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