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Subject: Re: [MTT users] MTT server side problem
From: Pavel Shamis (Pasha) (pasha_at_[hidden])
Date: 2008-05-07 11:04:07


Hi Josh.
>
> Looking at the patch I'm a little bit conserned. The
> "get_table_fields()" is, as you mentioned, no longer used so should be
> removed. However the other functions are critical to the submission
> script particularly 'do_pg_connect' which opens the connection to the
> backend database.
All the functions are implemented in $topdir/database.inc file. And the
"database.inc" implementation is better because it use password and
username from config.ini. The original implementation from submit/index use
hardcoded values defined in the file.
>
> Are you using the current development trunk (mtt/trunk) or the stable
> release branch (mtt/branches/ompi-core-testers)?
trunk
>
> Can you send us the error messages that you were receiving?

1. On client side I see ""*** WARNING: MTTDatabase client did not get a
serial"
As result of the error some of MTT results is not visible via the web
reporter
 
2. On server side I found follow error message:
[client 10.4.3.214] PHP Fatal error: Allowed memory size of 33554432
bytes exhausted (tried to allocate 23592960
bytes) in /.autodirect/swgwork/MTT/mtt/submit/index.php(79) : eval()'d
code on line 77515
[Mon May 05 19:26:05 2008] [notice] caught SIGTERM, shutting down
[Mon May 05 19:30:54 2008] [notice] suEXEC mechanism enabled (wrapper:
/usr/sbin/suexec)
[Mon May 05 19:30:54 2008] [notice] Digest: generating secret for digest
authentication ...
[Mon May 05 19:30:54 2008] [notice] Digest: done
[Mon May 05 19:30:54 2008] [notice] LDAP: Built with OpenLDAP LDAP SDK
[Mon May 05 19:30:54 2008] [notice] LDAP: SSL support unavailable
 
My memory limit in php.ini file was set on 256MB !

Regards,
Pasha

>
> Cheers,
> Josh
>
> On May 7, 2008, at 4:49 AM, Pavel Shamis (Pasha) wrote:
>
>> Hi,
>> I upgraded the server side (the mtt is still running , so don't know
>> if the problem was resolved)
>> During upgrade I had some problem with the submit/index.php script,
>> it had some duplicated functions and some of them were broken.
>> Please review the attached patch.
>>
>> Pasha
>>
>> Ethan Mallove wrote:
>>> On Tue, May/06/2008 06:29:33PM, Pavel Shamis (Pasha) wrote:
>>>
>>>>> I'm not sure which cron jobs you're referring to. Do you
>>>>> mean these?
>>>>>
>>>>> https://svn.open-mpi.org/trac/mtt/browser/trunk/server/php/cron
>>>>>
>>>> I talked about this one:
>>>> https://svn.open-mpi.org/trac/mtt/wiki/ServerMaintenance
>>>>
>>>
>>> I'm guessing you would only be concerned with the below
>>> periodic-maintenance.pl script, which just runs
>>> ANALYZE/VACUUM queries. I think you can start that up
>>> whenever you want (and it should optimize the Reporter).
>>>
>>> https://svn.open-mpi.org/trac/mtt/browser/trunk/server/sql/cron/periodic-maintenance.pl
>>>
>>>
>>> -Ethan
>>>
>>>
>>>
>>>>> The only thing there are the regular
>>>>> mtt-results_at_[hidden] email alerts and some out-of-date
>>>>> DB monitoring junk. You can ignore that stuff.
>>>>>
>>>>> Josh, are there some nightly (DB
>>>>> pruning/cleaning/vacuuming?) cron jobs that Pasha should be
>>>>> running?
>>>>>
>>>>> -Ethan
>>>>>
>>>>>
>>>>>> Thanks.
>>>>>>
>>>>>> Ethan Mallove wrote:
>>>>>>
>>>>>>> Hi Pasha,
>>>>>>>
>>>>>>> I thought this issue was solved in r1119 (see below). Do you
>>>>>>> have the latest mtt/server scripts?
>>>>>>>
>>>>>>> https://svn.open-mpi.org/trac/mtt/changeset/1119/trunk/server/php/submit
>>>>>>>
>>>>>>>
>>>>>>> -Ethan
>>>>>>>
>>>>>>> On Tue, May/06/2008 03:26:43PM, Pavel Shamis (Pasha) wrote:
>>>>>>>
>>>>>>>> About the issue:
>>>>>>>> 1. On client side I see ""*** WARNING: MTTDatabase client did
>>>>>>>> not get a serial"
>>>>>>>> As result of the error some of MTT results is not visible via
>>>>>>>> the web reporter
>>>>>>>> 2. On server side I found follow error message:
>>>>>>>> [client 10.4.3.214] PHP Fatal error: Allowed memory size of
>>>>>>>> 33554432 bytes exhausted (tried to allocate 23592960
>>>>>>>> bytes) in /.autodirect/swgwork/MTT/mtt/submit/index.php(79) :
>>>>>>>> eval()'d code on line 77515
>>>>>>>> [Mon May 05 19:26:05 2008] [notice] caught SIGTERM, shutting down
>>>>>>>> [Mon May 05 19:30:54 2008] [notice] suEXEC mechanism enabled
>>>>>>>> (wrapper: /usr/sbin/suexec)
>>>>>>>> [Mon May 05 19:30:54 2008] [notice] Digest: generating secret
>>>>>>>> for digest authentication ...
>>>>>>>> [Mon May 05 19:30:54 2008] [notice] Digest: done
>>>>>>>> [Mon May 05 19:30:54 2008] [notice] LDAP: Built with OpenLDAP
>>>>>>>> LDAP SDK
>>>>>>>> [Mon May 05 19:30:54 2008] [notice] LDAP: SSL support unavailable
>>>>>>>> My memory limit in php.ini file was set on 256MB !
>>>>>>>>
>>>>>>>> Any ideas ?
>>>>>>>>
>>>>>>>> Thanks.
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Pavel Shamis (Pasha)
>>>>>>>> Mellanox Technologies
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> mtt-users mailing list
>>>>>>>> mtt-users_at_[hidden]
>>>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
>>>>>>>>
>>>>>>>
>>>>>> --
>>>>>> Pavel Shamis (Pasha)
>>>>>> Mellanox Technologies
>>>>>>
>>>>>> _______________________________________________
>>>>>> mtt-users mailing list
>>>>>> mtt-users_at_[hidden]
>>>>>> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
>>>>>>
>>>>>
>>>> --
>>>> Pavel Shamis (Pasha)
>>>> Mellanox Technologies
>>>>
>>>> _______________________________________________
>>>> mtt-users mailing list
>>>> mtt-users_at_[hidden]
>>>> http://www.open-mpi.org/mailman/listinfo.cgi/mtt-users
>>>>
>>>
>>>
>>
>>
>> --
>> Pavel Shamis (Pasha)
>> Mellanox Technologies
>>
>> Index: submit/index.php
>> ===================================================================
>> --- submit/index.php (revision 1200)
>> +++ submit/index.php (working copy)
>> @@ -1,6 +1,7 @@
>> <?php
>> # Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
>> # Copyright (c) 2006-2007 Sun Microsystems, Inc. All rights reserved.
>> +# Copyright (c) 2008 Mellanox Technologies. All rights reserved.
>>
>> #
>> #
>> @@ -24,8 +25,7 @@ if (file_exists("$topdir/config.inc")) {
>> ini_set("memory_limit", "32M");
>>
>> $topdir = '..';
>> -$ompi_home = '/l/osl/www/doc/www.open-mpi.org';
>> -include_once("$ompi_home/dbpassword.inc");
>> +include_once("$topdir/database.inc");
>> include_once("$topdir/reporter.inc");
>>
>>
>> @@ -1465,60 +1465,6 @@ function get_table_indexes($table_name,
>> return simple_select($sql_cmd);
>> }
>>
>> -# Function used to determine which _POST fields
>> -# to INSERT. Prevent non-existent fields from being
>> -# INSERTed
>> -function get_table_fields($table_name) {
>> -
>> - global $dbname;
>> - global $id;
>> -
>> - # These indexes are special in that they link phases
>> - # together and hence, can and do show up in _POST
>> - if ($table_name == "test_build")
>> - $special_indexes = array("mpi_install$id");
>> - elseif ($table_name == "test_run")
>> - $special_indexes = array("test_build$id");
>> -
>> - # Crude way to tell whether a field is an index
>> - $is_not_index_clause =
>> - "\n\t (table_name = '$table_name' AND NOT " .
>> - "\n\t (data_type = 'integer' AND " .
>> - "\n\t column_name ~ '_id$' AND " .
>> - "\n\t table_catalog = '$dbname'))";
>> -
>> - $is_special_index_clause =
>> - "\n\t (table_name = '$table_name' AND " .
>> - "\n\t (column_name = '$special_indexes[0]'))";
>> -
>> - $is_index_columns = array(
>> - "column_name",
>> - "data_type",
>> - "column_default");
>> -
>> - $sql_cmd = "\n SELECT " . join(",",$is_index_columns) .
>> - "\n\t FROM information_schema.columns WHERE " .
>> - "\n\t " .
>> - $is_not_index_clause . " OR " .
>> - $is_special_index_clause . ';';
>> -
>> - do_pg_connect();
>> -
>> - # This table will be easier to manage if it's
>> - # keyed by column, instead of index
>> - $tmp = array();
>> - $arr = array();
>> - $arr = select($sql_cmd);
>> -
>> - foreach ($is_index_columns as $col) {
>> - $tmp[$col] = array();
>> - for ($i = 0; $i < sizeof($arr); $i++) {
>> - $tmp[$col][] = $arr[$i][$col];
>> - }
>> - }
>> - return $tmp;
>> -}
>> -
>> #
>> # Useful display of all the parameters posted.
>> # Warning: this function could explode the memory footprint causing the
>> @@ -1622,90 +1568,6 @@ function is_null_($var) {
>>
>> ######################################################################
>>
>> -function do_pg_connect() {
>> -
>> - global $dbname;
>> - global $user;
>> - global $pass;
>> - global $pgsql_conn;
>> - static $connected = false;
>> -
>> - if (!$connected) {
>> - $pgsql_conn =
>> - pg_connect("host=localhost port=5432 dbname=$dbname
>> user=$user password=$pass");
>> -
>> - # Exit if we cannot connect
>> - if (!$pgsql_conn) {
>> - mtt_abort("\nCould not connect to the $dbname database; " .
>> - "submit this run later.");
>> - }
>> - else {
>> - $connected = true;
>> -
>> - # Serialize all transactions by default - Safer that way.
>> - do_pg_query("SET SESSION CHARACTERISTICS AS TRANSACTION
>> ISOLATION LEVEL SERIALIZABLE", false);
>> - }
>> -
>> - # pg_set_error_verbosity($pgsql_conn, PGSQL_ERRORS_VERBOSE);
>> # PHP 5 needed
>> - # pg_trace($_ENV['HOME'] . "/pgsql.trace", 'w', $pgsql_conn);
>> - # debug("\npg_options: " .
>> var_export(pg_options($pgsql_conn)));
>> - }
>> -}
>> -
>> -function do_pg_query($cmd, $silent) {
>> - $db_res = null;
>> -
>> - do_pg_connect();
>> -
>> - debug("\nSQL: $cmd\n");
>> - if (! ($db_res = pg_query($cmd))) {
>> - $out = "\nSQL QUERY: " . $cmd .
>> - "\nSQL ERROR: " . pg_last_error() .
>> - "\nSQL ERROR: " . pg_result_error();
>> -
>> - # Some errors are unsurprising, allow for silence in
>> - # such cases
>> - if (! $silent) {
>> - mtt_error($out);
>> - mtt_send_mail($out);
>> - }
>> - }
>> - debug("\nDatabase rows affected: " . pg_affected_rows($db_res) .
>> "\n");
>> -
>> - return $db_res;
>> -}
>> -
>> -# Fetch scalar value
>> -function select_scalar($cmd) {
>> -
>> - $set = array();
>> - $set = simple_select($cmd);
>> - return array_shift($set);
>> -}
>> -
>> -# Fetch 1D array
>> -function simple_select($cmd) {
>> -
>> - do_pg_connect();
>> -
>> - $rows = null;
>> -
>> - debug("\nSQL: $cmd\n");
>> - if (! ($result = pg_query($cmd))) {
>> - $out = "\nSQL QUERY: " . $cmd .
>> - "\nSQL ERROR: " . pg_last_error() .
>> - "\nSQL ERROR: " . pg_result_error();
>> - mtt_error($out);
>> - mtt_send_mail($out);
>> - }
>> - $max = pg_num_rows($result);
>> - for ($i = 0; $i < $max; ++$i) {
>> - $row = pg_fetch_array($result, $i, PGSQL_NUM);
>> - $rows[] = $row[0];
>> - }
>> - return $rows;
>> -}
>> -
>> # Fetch an associative hash (column name => value)
>> function associative_select($cmd) {
>>
>> @@ -1722,21 +1584,6 @@ function associative_select($cmd) {
>> return pg_fetch_array($result);
>> }
>>
>> -# Fetch 2D array
>> -function select($cmd) {
>> - do_pg_connect();
>> -
>> - debug("\nSQL: $cmd\n");
>> - if (! ($result = pg_query($cmd))) {
>> - $out = "\nSQL QUERY: " . $cmd .
>> - "\nSQL ERROR: " . pg_last_error() .
>> - "\nSQL ERROR: " . pg_result_error();
>> - mtt_error($out);
>> - mtt_send_mail($out);
>> - }
>> - return pg_fetch_all($result);
>> -}
>> -
>> ######################################################################
>>
>> # Function for reporting errors back to the client
>
>

-- 
Pavel Shamis (Pasha)
Mellanox Technologies