I’ve been using Lightroom 3 with LR/Blog to export photo to WordPress for a while. After upgraded to WordPress 3, I’ve face this error: An internal error has occurred: only one top level element is allowed in an XML document. When I click export, the post and photos are upload and posted to the WordPress, but it jump out the error window.

Finding the Error

The way I find out the error. In the Lightroom 3,
File -> Plug-in Manger … Select the LR/Blog … enable the debugging
Log debug information to a file (LRBlog_log.txt) on your desktop

Read the Error

Try to export/upload again and it will be same that display the same error. Then check the log file that appear on your Desktop. LRBlog_log.txt
It will appear these inside the log file.

Returned:

<strong>Warning</strong>: strpos() [<a href="function.strpos">function.strpos</a>]: Empty delimiter in <strong>/home/justin/domains/justin.my/public_html/wp-includes/class-wp-xmlrpc-server.php</strong> on line <strong>2470</strong>
<strong>Warning</strong>: strpos() [<a href="function.strpos">function.strpos</a>]: Empty delimiter in <strong>/home/justin/domains/justin.my/public_html/wp-includes/class-wp-xmlrpc-server.php</strong> on line <strong>2470</strong>
<strong>Warning</strong>: Cannot modify header information - headers already sent by (output started at /home/justin/domains/justin.my/public_html/wp-includes/class-wp-xmlrpc-server.php:2470) in<strong>/home/justin/domains/thamai.net/public_html/wp-includes/class-IXR.php</strong> on line <strong>471</strong>
<strong>Warning</strong>: Cannot modify header information - headers already sent by (output started at /home/justin/domains/justin.my/public_html/wp-includes/class-wp-xmlrpc-server.php:2470) in<strong>/home/justin/domains/thamai.net/public_html/wp-includes/class-IXR.php</strong> on line <strong>472</strong>

I found that this is the WordPress bug make the LR/Blog error appear, so I’ve modify the code to solve it.

Solution to solve

Using FTP or vi edit the file.

Find the line 2470 in wp-includes/class-wp-xmlrpc-server.php

Add this

if($file->guid && !($file->guid == NULL))

the line above.

if ( strpos( $post_content, $file->guid ) !== false )

Here is the example to solve:

Modify from:

if ( is_array( $attachments ) ) {
foreach ( $attachments as $file ) {
if ( strpos( $post_content, $file->guid ) !== false )
 $wpdb->update($wpdb->posts, array('post_parent' => $post_ID), array('ID' => $file->ID) );
 }
 }

Modify to:

if ( is_array( $attachments ) ) {
 foreach ( $attachments as $file ) {
 if($file->guid && !($file->guid == NULL))
 if ( strpos( $post_content, $file->guid ) !== false )
 $wpdb->update($wpdb->posts, array('post_parent' => $post_ID), array('ID' => $file->ID) );
 }
 }

After modify, save and try to export from Lightroom 3 with LR/Blog again.

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If you see this error on your Android device while flashing or upgrading ROM.

Some example output for the errors:

Android system recovery <0.5.2>
– Samsung Spica i5700 –
Use Up/Down and OK to select

Reboot system now [Home+Back]
Apply sdcard/update.xip
Apply any zip from SD
___________________
Opening update package…
Verifying update package…
Installing update…
Deleting files…
Deleting files…
Deleting files…
Deleting files…
Deleting files…
Copying files…
Copying files…
E:Error in install_busybox.sh
(status 65280)
E:Failure at line 21>
run_program PACKAGE:Iinstall_busybox.sh
Installation aborted

E: Error in install_busybox.sh (Status 65280)
E: Failure at line 21:run_program PACKAGE:install_busybox.sh
Installation aborted.

I’ve solve by using this way.

• Shut down your Android Phone
• Open the back cover
• Take your your SDcard
• Copy all files backup to your PC
• Format the SD card.

You will solve this problem, then after you install your Android successfully, only copy all those files back.

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# ruby setup.rb
./lib/rubygems.rb:332: warning: parenthesize argument(s) for future version
./lib/rubygems.rb:514: warning: parenthesize argument(s) for future version
./lib/rubygems.rb:30:in `require’: ./lib/rubygems/deprecate.rb:53: syntax error (SyntaxError)
define_method name do |*args, &block| # TODO: really works on 1.8.7?
^
./lib/rubygems/deprecate.rb:54: syntax error
./lib/rubygems/deprecate.rb:63: syntax error
./lib/rubygems/deprecate.rb:68: syntax error from ./lib/rubygems.rb:30
from setup.rb:27:in `require’
from setup.rb:27
#

The solution to do, you must install the ruby version 1.8.7 or above.
To install ruby version 1.8.7

You can use here.
or you can install 1.9 version from here.

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Inside the ssh type:

cat /etc/redhat-release
cat /etc/issue

For safely upgrade to Centos lastest version, you can type:

yum update

Other may ask:

How to check Centos 32 or 64 ?
How to check Centos kernel version ?

uname -a

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Go to the directadmin guide.

http://help.directadmin.com/item.php?id=63

Choose the OS

Redhat
Fedora
Enterprise / CentOS
FreeBSD
Debian

Then choose the version of your OS

Redhat 7.2
Redhat 7.3
Redhat 8.0
Redhat 9.0
Fedora 1
Fedora 2
Fedora 3
Fedora 4
Fedora 5
ES 3.x / CentOS
ES 4.x / CentOS
ES 5.x / CentOS
FreeBSD 4.x
FreeBSD 5.x
Debian 3.0
Debian 3.1

Then it will generate something like this.

wget -O /usr/bin/webalizer http://files.directadmin.com/services/es_5.0/webalizer
chmod 755 /usr/bin/webalizer

So, login your root and run it.

Once you’ve updated the binary, you can type:

echo “action=tally&value=all” >> /usr/local/directadmin/data/task.queue

Then wait a few minutes for the tally to update the stats.

For a full webalizer debug guide, see this post.
http://www.directadmin.com/forum/showthread.php?p=113858&posted=1#post113858

[mono-addon] -bash-3.2# webalizer
webalizer: error while loading shared libraries: libgd.so.2: cannot open shared object file: No such file or directory

If you face this problem, can be solved in here.

http://help.directadmin.com/item.php?id=56

For more trouble shooting of installing Webalizer on DirectAdmin

http://help.directadmin.com/?query=webalizer

Here is my log to installing the Webalizer on DirectAdmin

-bash-3.2# wget -O /usr/bin/webalizer http://files.directadmin.com/ services/es_5.0/webalizer
–2011-10-12 02:20:24– http://files.directadmin.com/services/es_5.0/webalizer
Resolving files.directadmin.com… 72.35.85.222, 69.30.193.202
Connecting to files.directadmin.com|72.35.85.222|:80… connected.
HTTP request sent, awaiting response… 200 OK
Length: 139582 (136K) [text/plain]
Saving to: `/usr/bin/webalizer’

100%[======================================>] 139,582 103K/s in 1.3s

2011-10-12 02:20:26 (103 KB/s) – `/usr/bin/webalizer’ saved [139582/139582]
-bash-3.2# chmod 755 /usr/bin/webalizer
-bash-3.2# echo “action=tally&value=all” >> /usr/local/directadmin/ data/task.queue
-bash-3.2# /usr/local/directadmin/data/task.queue
-bash: /usr/local/directadmin/data/task.queue: Permission denied
-bash-3.2# cat /usr/local/directadmin/data/templates/custom/webaliz er.conf
cat: /usr/local/directadmin/data/templates/custom/webalizer.conf: No such file o r directory
-bash-3.2# webalizer
webalizer: error while loading shared libraries: libgd.so.2: cannot open shared object file: No such file or directory
-bash-3.2# echo “/usr/local/lib” >> /etc/ld.so.conf
-bash-3.2# ldconfig
-bash-3.2# yum install gd
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: centos.biz.net.id
* epel: mirrors.ispros.com.bd
* extras: centos.biz.net.id
* updates: centos.biz.net.id
Mono | 1.3 kB 00:00
base | 1.1 kB 00:00
base/primary | 1.2 MB 00:01
base 3566/3566
epel | 3.7 kB 00:00
epel/primary_db | 3.7 MB 00:03
extras | 2.1 kB 00:00
extras/primary_db | 159 kB 00:00
updates | 1.9 kB 00:00
updates/primary_db | 205 kB 00:00
Excluding Packages in global exclude list
Finished
Setting up Install Process
Resolving Dependencies
–> Running transaction check
—> Package gd.i386 0:2.0.33-9.4.el5_4.2 set to be updated
–> Processing Dependency: libXpm.so.4 for package: gd
—> Package gd.x86_64 0:2.0.33-9.4.el5_4.2 set to be updated
–> Processing Dependency: libXpm.so.4()(64bit) for package: gd
–> Running transaction check
—> Package libXpm.i386 0:3.5.5-3 set to be updated
—> Package libXpm.x86_64 0:3.5.5-3 set to be updated
–> Finished Dependency Resolution

Dependencies Resolved

================================================================================
Package Arch Version Repository Size
================================================================================
Installing:
gd i386 2.0.33-9.4.el5_4.2 base 154 k
gd x86_64 2.0.33-9.4.el5_4.2 base 155 k
Installing for dependencies:
libXpm i386 3.5.5-3 base 45 k
libXpm x86_64 3.5.5-3 base 44 k

Transaction Summary
================================================================================
Install 4 Package(s)
Upgrade 0 Package(s)

Total download size: 399 k
Is this ok [y/N]: y
Downloading Packages:
(1/4): libXpm-3.5.5-3.x86_64.rpm | 44 kB 00:00
(2/4): libXpm-3.5.5-3.i386.rpm | 45 kB 00:00
(3/4): gd-2.0.33-9.4.el5_4.2.i386.rpm | 154 kB 00:00
(4/4): gd-2.0.33-9.4.el5_4.2.x86_64.rpm | 155 kB 00:00
——————————————————————————–
Total 518 kB/s | 399 kB 00:00
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : libXpm 1/4
Installing : libXpm 2/4
Installing : gd 3/4
Installing : gd 4/4

Installed:
gd.i386 0:2.0.33-9.4.el5_4.2 gd.x86_64 0:2.0.33-9.4.el5_4.2

Dependency Installed:
libXpm.i386 0:3.5.5-3 libXpm.x86_64 0:3.5.5-3

Complete!
-bash-3.2# ln -s /usr/local/lib/libgd.so.2 /usr/lib/libgd.so.2
ln: creating symbolic link `/usr/lib/libgd.so.2′ to `/usr/local/lib/libgd.so.2′: File exists
-bash-3.2# webalizer
Webalizer V2.01-10 (Linux 2.6.18-238.9.1.el5) English
Using logfile STDIN (clf)
Creating output in current directory
Hostname for reports is ‘server.pelayan.com’
History file not found…
.

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[root@server src]# yum install smartmontools

If run, using smartctl

[root@server src]# smartctl –all /dev/sdb1
smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Device Model: WDC WD5000AADS-00S9B0
Serial Number: WD-WCAV99805322
Firmware Version: 01.00A01
User Capacity: 500,107,862,016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Thu May 5 12:26:11 2011 MYT
SMART support is: Available – device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0×82) Offline data collection activity
was completed without error.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (11580) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0×0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0×01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 136) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0×3037) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always – 0
3 Spin_Up_Time 0×0027 189 189 021 Pre-fail Always – 3541
4 Start_Stop_Count 0×0032 100 100 000 Old_age Always – 22
5 Reallocated_Sector_Ct 0×0033 200 200 140 Pre-fail Always – 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always – 0
9 Power_On_Hours 0×0032 093 093 000 Old_age Always – 5507
10 Spin_Retry_Count 0×0032 100 253 000 Old_age Always – 0
11 Calibration_Retry_Count 0×0032 100 253 000 Old_age Always – 0
12 Power_Cycle_Count 0×0032 100 100 000 Old_age Always – 20
192 Power-Off_Retract_Count 0×0032 200 200 000 Old_age Always – 19
193 Load_Cycle_Count 0×0032 200 200 000 Old_age Always – 1749
194 Temperature_Celsius 0×0022 119 109 000 Old_age Always – 24
196 Reallocated_Event_Count 0×0032 200 200 000 Old_age Always – 0
197 Current_Pending_Sector 0×0032 200 200 000 Old_age Always – 0
198 Offline_Uncorrectable 0×0030 200 200 000 Old_age Offline – 0
199 UDMA_CRC_Error_Count 0×0032 200 200 000 Old_age Always – 0
200 Multi_Zone_Error_Rate 0×0008 200 200 000 Old_age Offline – 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0×0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

[root@server src]# smartctl –all /dev/sda1
smartctl version 5.38 [x86_64-redhat-linux-gnu] Copyright (C) 2002-8 Bruce Allen
Home page is http://smartmontools.sourceforge.net/

=== START OF INFORMATION SECTION ===
Device Model: WDC WD1002FAEX-00Y9A0
Serial Number: WD-WCAW30635874
Firmware Version: 05.01D05
User Capacity: 1,000,204,886,016 bytes
Device is: Not in smartctl database [for details use: -P showall]
ATA Version is: 8
ATA Standard is: Exact ATA specification draft version not indicated
Local Time is: Thu May 5 12:26:27 2011 MYT
SMART support is: Available – device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status: (0×84) Offline data collection activity
was suspended by an interrupting command from host.
Auto Offline Data Collection: Enabled.
Self-test execution status: ( 0) The previous self-test routine completed
without error or no self-test has ever
been run.
Total time to complete Offline
data collection: (16500) seconds.
Offline data collection
capabilities: (0x7b) SMART execute Offline immediate.
Auto Offline data collection on/off support.
Suspend Offline collection upon new
command.
Offline surface scan supported.
Self-test supported.
Conveyance Self-test supported.
Selective Self-test supported.
SMART capabilities: (0×0003) Saves SMART data before entering
power-saving mode.
Supports SMART auto save timer.
Error logging capability: (0×01) Error logging supported.
General Purpose Logging supported.
Short self-test routine
recommended polling time: ( 2) minutes.
Extended self-test routine
recommended polling time: ( 170) minutes.
Conveyance self-test routine
recommended polling time: ( 5) minutes.
SCT capabilities: (0×3035) SCT Status supported.
SCT Feature Control supported.
SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME FLAG VALUE WORST THRESH TYPE UPDATED WHEN_FAILED RAW_VALUE
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always – 0
3 Spin_Up_Time 0×0027 172 172 021 Pre-fail Always – 4358
4 Start_Stop_Count 0×0032 100 100 000 Old_age Always – 12
5 Reallocated_Sector_Ct 0×0033 200 200 140 Pre-fail Always – 0
7 Seek_Error_Rate 0x002e 200 200 000 Old_age Always – 0
9 Power_On_Hours 0×0032 100 100 000 Old_age Always – 359
10 Spin_Retry_Count 0×0032 100 253 000 Old_age Always – 0
11 Calibration_Retry_Count 0×0032 100 253 000 Old_age Always – 0
12 Power_Cycle_Count 0×0032 100 100 000 Old_age Always – 10
192 Power-Off_Retract_Count 0×0032 200 200 000 Old_age Always – 9
193 Load_Cycle_Count 0×0032 200 200 000 Old_age Always – 4
194 Temperature_Celsius 0×0022 121 111 000 Old_age Always – 26
196 Reallocated_Event_Count 0×0032 200 200 000 Old_age Always – 0
197 Current_Pending_Sector 0×0032 200 200 000 Old_age Always – 0
198 Offline_Uncorrectable 0×0030 100 253 000 Old_age Offline – 0
199 UDMA_CRC_Error_Count 0×0032 200 200 000 Old_age Always – 0
200 Multi_Zone_Error_Rate 0×0008 100 253 000 Old_age Offline – 0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged. [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 1
SPAN MIN_LBA MAX_LBA CURRENT_TEST_STATUS
1 0 0 Not_testing
2 0 0 Not_testing
3 0 0 Not_testing
4 0 0 Not_testing
5 0 0 Not_testing
Selective self-test flags (0×0):
After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

Make sure that this line
1 Raw_Read_Error_Rate 0x002f 200 200 051 Pre-fail Always – 0
The report should be 0 ( Zero ), if not you can backup your data, and bring this HDD to claim. Make sure do it immediately to prevent data lost.

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./tuning-primer.sh: line 1321: bc: command not found

To solve this in CentOS, just type

yum install bc

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Here is the settings from my.cnf

[root@server src]# cat /etc/my.cnf
[mysqld]
local-infile=0
skip-locking
query_cache_limit=4M
query_cache_size=32M
query_cache_type=1
max_connections=500
interactive_timeout=100
wait_timeout=100
connect_timeout=10
thread_cache_size=128
key_buffer=16M
key_buffer_size=256M
join_buffer=1M
join_buffer_size=1M
max_allowed_packet=16M
table_cache=2048
record_buffer=1M
sort_buffer_size=2M
read_buffer_size=2M
max_connect_errors=10
# Try number of CPU’s*2 for thread_concurrency
thread_concurrency=8
myisam_sort_buffer_size=64M
server-id=1
tmp_table_size=64M
max_heap_table_siz=64M
innodb_buffer_pool_size=128M

[safe_mysqld]
err-log=/var/log/mysqld.log
open_files_limit=8192

[mysqldump]
quick
max_allowed_packet=16M

[mysql]
no-auto-rehash
#safe-updates

[isamchk]
key_buffer=64M
sort_buffer=64M
read_buffer=16M
write_buffer=16M

[myisamchk]
key_buffer=64M
sort_buffer=64M
read_buffer=16M
write_buffer=16M

[mysqlhotcopy]
interactive-timeout

Here is the results from mysqltuner.pl

[root@server src]# ./mysqltuner.pl

>> MySQLTuner 1.2.0 – Major Hayden
>> Bug reports, feature requests, and downloads at http://mysqltuner.com/
>> Run with ‘–help’ for additional options and output filtering

——– General Statistics ————————————————–
[--] Skipped version check for MySQLTuner script
[OK] Currently running supported MySQL version 5.0.51a-community
[OK] Operating on 64-bit architecture

——– Storage Engine Statistics ——————————————-
[--] Status: +Archive -BDB +Federated +InnoDB -ISAM -NDBCluster
[--] Data in MyISAM tables: 795M (Tables: 1641)
[--] Data in InnoDB tables: 72M (Tables: 118)
[--] Data in MEMORY tables: 0B (Tables: 6)
[!!] Total fragmented tables: 8

——– Security Recommendations ——————————————-
[OK] All database users have passwords assigned

——– Performance Metrics ————————————————-
[--] Up for: 10m 21s (7K q [12.483 qps], 735 conn, TX: 16M, RX: 1M)
[--] Reads / Writes: 85% / 15%
[--] Total buffers: 482.0M global + 5.5M per thread (500 max threads)
[OK] Maximum possible memory usage: 3.2G (81% of installed RAM)
[OK] Slow queries: 0% (0/7K)
[OK] Highest usage of available connections: 0% (3/500)
[OK] Key buffer size / total MyISAM indexes: 256.0M/183.2M
[OK] Key buffer hit rate: 97.3% (168K cached / 4K reads)
[OK] Query cache efficiency: 39.4% (1K cached / 4K selects)
[OK] Query cache prunes per day: 0
[OK] Sorts requiring temporary tables: 0% (1 temp sorts / 368 sorts)
[OK] Temporary tables created on disk: 21% (166 on disk / 785 total)
[OK] Thread cache hit rate: 99% (3 created / 735 connections)
[OK] Table cache hit rate: 99% (1K open / 1K opened)
[OK] Open file limit used: 72% (3K/4K)
[OK] Table locks acquired immediately: 100% (4K immediate / 4K locks)
[OK] InnoDB data size / buffer pool: 72.0M/128.0M

——– Recommendations —————————————————–
General recommendations:
Run OPTIMIZE TABLE to defragment tables for better performance
MySQL started within last 24 hours – recommendations may be inaccurate
Enable the slow query log to troubleshoot bad queries

Here is the result of tuning-primer.sh

[root@server src]# ./tuning-primer.sh

— MYSQL PERFORMANCE TUNING PRIMER –
– By: Matthew Montgomery -

MySQL Version 5.0.51a-community x86_64

Uptime = 0 days 0 hrs 11 min 3 sec
Avg. qps = 12
Total Questions = 8041
Threads Connected = 1

Warning: Server has not been running for at least 48hrs.
It may not be safe to use these recommendations

To find out more information on how each of these
runtime variables effects performance visit:

http://dev.mysql.com/doc/refman/5.0/en/server-system-variables.html

Visit http://www.mysql.com/products/enterprise/advisors.html
for info about MySQL’s Enterprise Monitoring and Advisory Service

SLOW QUERIES
The slow query log is NOT enabled.
Current long_query_time = 10 sec.
You have 0 out of 8062 that take longer than 10 sec. to complete
Your long_query_time seems to be fine

BINARY UPDATE LOG
The binary update log is NOT enabled.
You will not be able to do point in time recovery
See http://dev.mysql.com/doc/refman/5.0/en/point-in-time-recovery.html

WORKER THREADS
Current thread_cache_size = 128
Current threads_cached = 2
Current threads_per_sec = 0
Historic threads_per_sec = 0
Your thread_cache_size is fine

MAX CONNECTIONS
Current max_connections = 500
Current threads_connected = 1
Historic max_used_connections = 3
The number of used connections is 0% of the configured maximum.
You are using less than 10% of your configured max_connections.
Lowering max_connections could help to avoid an over-allocation of memory
See “MEMORY USAGE” section to make sure you are not over-allocating

INNODB STATUS
Current InnoDB index space = 32 M
Current InnoDB data space = 72 M
Current InnoDB buffer pool free = 61 %
Current innodb_buffer_pool_size = 128 M
Depending on how much space your innodb indexes take up it may be safe
to increase this value to up to 2 / 3 of total system memory

MEMORY USAGE
Max Memory Ever Allocated : 434 M
Configured Max Per-thread Buffers : 2.68 G
Configured Max Global Buffers : 418 M
Configured Max Memory Limit : 3.08 G
Physical Memory : 3.85 G
Max memory limit seem to be within acceptable norms

KEY BUFFER
Current MyISAM index space = 183 M
Current key_buffer_size = 256 M
Key cache miss rate is 1 : 38
Key buffer free ratio = 80 %
Your key_buffer_size seems to be fine

QUERY CACHE
Query cache is enabled
Current query_cache_size = 32 M
Current query_cache_used = 4 M
Current query_cache_limit = 4 M
Current Query cache Memory fill ratio = 13.23 %
Current query_cache_min_res_unit = 4 K
Your query_cache_size seems to be too high.
Perhaps you can use these resources elsewhere
MySQL won’t cache query results that are larger than query_cache_limit in size

SORT OPERATIONS
Current sort_buffer_size = 2 M
Current read_rnd_buffer_size = 256 K
Sort buffer seems to be fine

JOINS
Current join_buffer_size = 1.00 M
You have had 0 queries where a join could not use an index properly
Your joins seem to be using indexes properly

OPEN FILES LIMIT
Current open_files_limit = 4606 files
The open_files_limit should typically be set to at least 2x-3x
that of table_cache if you have heavy MyISAM usage.
Your open_files_limit value seems to be fine

TABLE CACHE
Current table_cache value = 2048 tables
You have a total of 1782 tables
You have 1795 open tables.
The table_cache value seems to be fine

TEMP TABLES
Current max_heap_table_size = 64 M
Current tmp_table_size = 64 M
Of 800 temp tables, 18% were created on disk
Created disk tmp tables ratio seems fine

TABLE SCANS
Current read_buffer_size = 1 M
Current table scan ratio = 29 : 1
read_buffer_size seems to be fine

TABLE LOCKING
Current Lock Wait ratio = 0 : 8326
Your table locking seems to be fine

Here are the current results, I will re-check the settings after get the statistic from MySQL for 1 week.

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I get this errors in DirectAdmin with CentOS 5.6

This maybe is the way to solve the errors.

# cd /usr/local/directadmin/custombuild

# ./build clean

# ./build update

# ./build libxml2

# ./build php n

then

# ln -s /usr/local/lib/libxml2.so.2 /usr/lib64/libxml2.so

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