I have a Magento website on degitalocean.com and I am unable to login via SSH or SFTP. Almost every alternate day I'm facing this problem and I have to restart my droplet via digitalocean account to make website working. Few days ago it was giving MYSQL connectivity error which i resolved by increasing droplet RAM to 2GB and by creating SWAP file.
Can anyone please suggest solution for this issue? Also let me know if you want to see any code files.
I have added few lines from error.log please see if this can be help
150808 10:18:38 [Note] Plugin 'FEDERATED' is disabled.
150808 10:18:38 InnoDB: The InnoDB memory heap is disabled
150808 10:18:38 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150808 10:18:38 InnoDB: Compressed tables use zlib 1.2.8
150808 10:18:38 InnoDB: Using Linux native AIO
150808 10:18:38 InnoDB: Initializing buffer pool, size = 128.0M
150808 10:18:38 InnoDB: Completed initialization of buffer pool
150808 10:18:47 InnoDB: highest supported file format is Barracuda.
InnoDB: The log sequence number in ibdata files does not match
InnoDB: the log sequence number in the ib_logfiles!
150808 10:18:47 InnoDB: Database was not shut down normally!
InnoDB: Starting crash recovery.
InnoDB: Reading tablespace information from the .ibd files...
InnoDB: Restoring possible half-written data pages from the doublewrite
InnoDB: buffer...
150808 10:18:49 InnoDB: Waiting for the background threads to start
150808 10:18:50 InnoDB: 5.5.38 started; log sequence number 976719446
150808 10:18:50 [Note] Server hostname (bind-address): '178.**.42.108'; port: 3306
150808 10:18:50 [Note] - '178.**.42.108' resolves to '178.**.42.108';
150808 10:18:50 [Note] Server socket created on IP: '178.**.42.108'.
150808 10:19:01 [Note] Event Scheduler: Loaded 0 events
150808 10:19:01 [Note] /usr/sbin/mysqld: ready for connections.
Version: '5.5.38-0ubuntu0.14.04.1' socket: '/var/run/mysqld/mysqld.sock' port: 3306 (Ubuntu)
150808 10:21:00 [Warning] IP address '221.211.62.106' could not be resolved: Name or service not known
150808 11:17:09 [Warning] IP address '115.238.245.12' could not be resolved: Name or service not known
My.cnf
#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.
#
# For explanations see
# http://dev.mysql.com/doc/mysql/en/server-system-variables.html
# This will be passed to all mysql clients
# It has been reported that passwords should be enclosed with ticks/quotes
# escpecially if they contain "#" chars...
# Remember to edit /etc/mysql/debian.cnf when changing the socket location.
[client]
port = 3306
socket = /var/run/mysqld/mysqld.sock
# Here is entries for some specific programs
# The following values assume you have at least 32M ram
# This was formally known as [safe_mysqld]. Both versions are currently parsed.
[mysqld_safe]
socket = /var/run/mysqld/mysqld.sock
nice = 0
[mysqld]
#
# * Basic Settings
#
user = mysql
performance_schema = off
pid-file = /var/run/mysqld/mysqld.pid
socket = /var/run/mysqld/mysqld.sock
port = 3306
basedir = /usr
datadir = /var/lib/mysql
tmpdir = /tmp
lc-messages-dir = /usr/share/mysql
skip-external-locking
#
# Instead of skip-networking the default is now to listen only on
# localhost which is more compatible and is not less secure.
bind-address = 127.0.0.1
#
# * Fine Tuning
#
key_buffer = 32M
max_allowed_packet = 16M
thread_stack = 192K
thread_cache_size = 8
# This replaces the startup script and checks MyISAM tables if needed
# the first time they are touched
myisam-recover-options = BACKUP
#max_connections = 100
#table_cache = 128
#thread_concurrency = 10
#
# * Query Cache Configuration
#
query_cache_limit = 1M
query_cache_size = 32M
#
# * Logging and Replication
#
# Both location gets rotated by the cronjob.
# Be aware that this log type is a performance killer.
# As of 5.1 you can enable the log at runtime!
#general_log_file = /var/log/mysql/mysql.log
#general_log = 1
#
# Error log - should be very few entries.
#
log_error = /var/log/mysql/error.log
#
# Here you can see queries with especially long duration
#log_slow_queries = /var/log/mysql/mysql-slow.log
#long_query_time = 2
#log-queries-not-using-indexes
#
# The following can be used as easy to replay backup logs or for replication.
# note: if you are setting up a replication slave, see README.Debian about
# other settings you may need to change.
#server-id = 1
#log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M
#binlog_do_db = include_database_name
#binlog_ignore_db = include_database_name
#
# * InnoDB
#
# InnoDB is enabled by default with a 10MB datafile in /var/lib/mysql/.
# Read the manual for more InnoDB related options. There are many!
#
# * Security Features
#
# Read the manual, too, if you want chroot!
# chroot = /var/lib/mysql/
#
# For generating SSL certificates I recommend the OpenSSL GUI "tinyca".
#
# ssl-ca=/etc/mysql/cacert.pem
# ssl-cert=/etc/mysql/server-cert.pem
# ssl-key=/etc/mysql/server-key.pem
[mysqldump]
quick
quote-names
max_allowed_packet = 256M
[mysql]
#no-auto-rehash # faster start of mysql but no tab completition
socket = /var/run/mysqld/mysqld.sock
[isamchk]
key_buffer = 256M
#
# * IMPORTANT: Additional settings that can override those from this file!
# The files must end with '.cnf', otherwise they'll be ignored.
#
!includedir /etc/mysql/conf.d/
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