fastdfs介绍和安装
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2、环境准备
2.1、RedHat 7 Yum源配置及关闭火墙
配置Redhat7ISO YUM源
Vi/etc/yum.repo.d/rhel7.repo
[rhel7-media]
name=rhel7-source
baseurl=file:///mnt
Enable=1
gpgcheck=1
gpgkey=file:///mnt/RPM-GPG-KEY-redhat-release
关闭防火墙:
systemctlstop firewalld
systemctldisable firewalld
2.2、安装依赖包
安装相关依赖包,如gcc、pcre、pcre-devel、zlib、zlib-devel、openssl、openssl-devel
命令:
yum -y install gcc gcc-c++ pcre pcre-devel zlibzlib-devel openssl openssl-devel
2.3、FastDFS环规划
采用两台Tracker Server和四台Storage Server搭建,实现集群配置,规划如下图:
用笔记本搭建虚拟机跑不了6台,因此改为如下规划方案:采用4台虚拟机。其中:
Tracker01即是tracker server也是storage server;
Tracker02即是tracker server也是storage server;
Storage01是storage Server。
Storage02是storage server。
分为如下两个组:
各主机/etc/hosts配置:
#Tracker01
192.168.18.2 Tracker01
192.168.18.3 Tracker02
#Storage gwmdfs1
192.168.18.4 Storage01
192.168.18.5 Storage02
#Storage gwmdfs2
192.168.18.6 Storage03
192.168.18.7 Storage04
2.4、目录规划
存储Tracker的数据文件和日志文件:
/home/fastdfs_tracker
存储Storage的数据文件和日志文件:
/home/fastdfs_storage
文件存储路径,存储上传的文件:
/home/fastdfs_storage_data
2.5、相关软件下载
相关软件包下载可到余庆作者Github官网首页下载:https://github.com/happyfish100;所下载的相关软件每台服务器都放在了/media目录下。
[root@Tracker01 media]# ls -rtl
total 19096
-rw-r--r--. 1 root root 20405 Mar 28 12:34 fastdfs-nginx-module-master.zip
-rw-r--r--. 1 root root 335132 Mar 28 12:34 fastdfs-5.09.tar.gz
-rw-r--r--. 1 root root 478841 Mar 28 12:34 libfastcommon-master.zip
-rw-r--r--. 1 root root 2065161 Mar 28 12:34 pcre-8.40.tar.gz
-rw-r--r--. 1 root root 833473 Mar 28 12:34 nginx-1.8.1.tar.gz
-rw-r--r--. 1 root root 15800360 Mar 28 12:35 perl-5.20.2.tar.gz
-rw-r--r--. 1 root root 10535 Mar 28 12:37 ngx_cache_purge-2.1.tar.gz
3、FastDFS Tracker&Storage安装
所有节点均需要安装:
1、 首先安装libfastcommon-master
# unzip libfastcommon-master
# cd libfastcommon-master
# ./make.sh
# ./make.sh install
[root@Tracker01 libfastcommon-master]# ./make.sh install
mkdir -p /usr/lib64
mkdir -p /usr/lib
install -m 755 libfastcommon.so /usr/lib64
install -m 755 libfastcommon.so /usr/lib
mkdir -p /usr/include/fastcommon
install -m 644 common_define.h hash.h chain.h logger.h base64.h shared_func.h pthread_func.h ini_file_reader.h _os_define.h sockopt.h sched_thread.h http_func.h md5.h local_ip_func.h avl_tree.h ioevent.h ioevent_loop.h fast_task_queue.h fast_timer.h process_ctrl.h fast_mblock.h connection_pool.h fast_mpool.h fast_allocator.h fast_buffer.h skiplist.h multi_skiplist.h flat_skiplist.h skiplist_common.h system_info.h fast_blocked_queue.h php7_ext_wrapper.h id_generator.h char_converter.h char_convert_loader.h /usr/include/fastcommon
libfastcommon.so 默认安装到了/usr/lib64/libfastcommon.so,但是FastDFS主程序设置的lib目录是/usr/local/lib,所以此处需要重新设置软链接。
ln -s /usr/lib64/libfastcommon.so/usr/local/lib/libfastcommon.so
2、 安装fastdfs-5.09.tar.gz
# tar –zxvf fastdfs-5.09.tar.gz
# cd fastdfs-5.09
# ./make.sh
# ./make.sh install
[root@Tracker01 fastdfs-5.09]# ./make.sh install
mkdir -p /usr/bin
mkdir -p /etc/fdfs
cp -f fdfs_trackerd /usr/bin
if [ ! -f /etc/fdfs/tracker.conf.sample ]; then cp -f ../conf/tracker.conf /etc/fdfs/tracker.conf.sample; fi
if [ ! -f /etc/fdfs/storage_ids.conf.sample ]; then cp -f ../conf/storage_ids.conf /etc/fdfs/storage_ids.conf.sample; fi
mkdir -p /usr/bin
mkdir -p /etc/fdfs
cp -f fdfs_storaged /usr/bin
if [ ! -f /etc/fdfs/storage.conf.sample ]; then cp -f ../conf/storage.conf /etc/fdfs/storage.conf.sample; fi
mkdir -p /usr/bin
mkdir -p /etc/fdfs
mkdir -p /usr/lib64
mkdir -p /usr/lib
cp -f fdfs_monitor fdfs_test fdfs_test1 fdfs_crc32 fdfs_upload_file fdfs_download_file fdfs_delete_file fdfs_file_info fdfs_appender_test fdfs_appender_test1 fdfs_append_file fdfs_upload_appender /usr/bin
if [ 0 -eq 1 ]; then cp -f libfdfsclient.a /usr/lib64; cp -f libfdfsclient.a /usr/lib/;fi
if [ 1 -eq 1 ]; then cp -f libfdfsclient.so /usr/lib64; cp -f libfdfsclient.so /usr/lib/;fi
mkdir -p /usr/include/fastdfs
cp -f ../common/fdfs_define.h ../common/fdfs_global.h ../common/mime_file_parser.h ../common/fdfs_http_shared.h ../tracker/tracker_types.h ../tracker/tracker_proto.h ../tracker/fdfs_shared_func.h ../storage/trunk_mgr/trunk_shared.h tracker_client.h storage_client.h storage_client1.h client_func.h client_global.h fdfs_client.h /usr/include/fastdfs
if [ ! -f /etc/fdfs/client.conf.sample ]; then cp -f ../conf/client.conf /etc/fdfs/client.conf.sample; fi
安装完成后在/etc/fdfs目录下会生成sample配置文件,拷贝sample文件,生成正式的配置文件:
# cp client.conf.sample client.conf
# cp tracker.conf.sample tracker.conf //Tracker服务器配置
# cp storage.conf.sample storage.conf //Storage服务器配置
4、FastDFS Tracker&Storage配置
4.1、Tracker的配置
1、 创建存储目录/home/fastdfs_tracker,修改/etc/fdfs/tracker.conf配置文件
[root@Tracker01 fdfs]# cat tracker.conf |grep -v "#" |grep -v "^$"|more
disabled=false
bind_addr=
port=22122
connect_timeout=30
network_timeout=60
base_path=/home/fastdfs_tracker
max_connections=256
accept_threads=1
work_threads=4
min_buff_size = 8KB
max_buff_size = 128KB
store_lookup=2
store_group=group2
store_server=0
store_path=0
download_server=0
reserved_storage_space = 10%
log_level=info
run_by_group=
run_by_user=
allow_hosts=*
sync_log_buff_interval = 10
check_active_interval = 120
thread_stack_size = 64KB
storage_ip_changed_auto_adjust = true
storage_sync_file_max_delay = 86400
storage_sync_file_max_time = 300
use_trunk_file = false
slot_min_size = 256
slot_max_size = 16MB
trunk_file_size = 64MB
trunk_create_file_advance = false
trunk_create_file_time_base = 02:00
trunk_create_file_interval = 86400
trunk_create_file_space_threshold = 20G
trunk_init_check_occupying = false
trunk_init_reload_from_binlog = false
trunk_compress_binlog_min_interval = 0
use_storage_id = false
storage_ids_filename = storage_ids.conf
id_type_in_filename = ip
store_slave_file_use_link = false
rotate_error_log = false
error_log_rotate_time=00:00
rotate_error_log_size = 0
log_file_keep_days = 0
use_connection_pool = false
connection_pool_max_idle_time = 3600
http.server_port=80
http.check_alive_interval=30
http.check_alive_type=tcp
http.check_alive_uri=/status.html
2、 启动Tracker
# ln -s /usr/bin/fdfs_trackerd/usr/local/bin
# ln -s /usr/bin/stop.sh /usr/local/bin
# ln -s /usr/bin/restart.sh /usr/local/bin
# service fdfs_trackerd start
[root@Tracker01 ~]# service fdfs_trackerd start
Reloading systemd: [ OK ]
Starting fdfs_trackerd (via systemctl): [ OK ]
# netstat -unltp |grep fdfs
[root@Tracker01 ~]# netstat -unltp | grep fdfs
tcp 0 0 0.0.0.0:22122 0.0.0.0:* LISTEN 4374/fdfs_trackerd
3、 可配置成开机自动启服务。Vi /etc/rc.d/rc.local 加入service fdfs_trackerd start,并对rc.local文件设置可执行权限。
4.2、Storage的配置(涉及到组名的一定要一致不要弄错否则用ss –tlanp | grep storage查看时estab连接不上另一台storage)
1、 创建目录/home/fastdfs_storage和/home/fastdfs_storage_data,并修改/etc/fdfs/storage.conf文件
disabled=false
group_name=gwmdfs1
bind_addr=
client_bind=true
port=23000
connect_timeout=30
network_timeout=60
heart_beat_interval=30
stat_report_interval=60
base_path=/home/fastdfs_storage
max_connections=256
buff_size = 256KB
accept_threads=1
work_threads=4
disk_rw_separated = true
disk_reader_threads = 1
disk_writer_threads = 1
sync_wait_msec=50
sync_interval=0
sync_start_time=00:00
sync_end_time=23:59
write_mark_file_freq=500
store_path_count=1
store_path0=/home/fastdfs_storage_data
subdir_count_per_path=256
tracker_server=192.168.18.2:22122
tracker_server=192.168.18.3:22122
log_level=info
run_by_group=
run_by_user=
allow_hosts=*
file_distribute_path_mode=0
file_distribute_rotate_count=100
fsync_after_written_bytes=0
sync_log_buff_interval=10
sync_binlog_buff_interval=10
sync_stat_file_interval=300
thread_stack_size=512KB
upload_priority=10
if_alias_prefix=
check_file_duplicate=0
file_signature_method=hash
key_namespace=FastDFS
keep_alive=0
use_access_log = false
rotate_access_log = false
access_log_rotate_time=00:00
rotate_error_log = false
error_log_rotate_time=00:00
rotate_access_log_size = 0
rotate_error_log_size = 0
log_file_keep_days = 0
file_sync_skip_invalid_record=false
use_connection_pool = false
connection_pool_max_idle_time = 3600
http.domain_name=
http.server_port=9999
2、 启动Storage
# ln -s /usr/bin/fdfs_trackerd /usr/local/bin
# ln -s /usr/bin/stop.sh /usr/local/bin
# ln -s /usr/bin/restart.sh /usr/local/bin
# service fdfs_storaged start(启动第二个storge时用该命令的绝对路径不用加start 后面接第二个storage的配置文件绝对路径)
[root@Storage02 bin]# service fdfs_storaged start
Reloading systemd: [ OK ]
Starting fdfs_storaged (via systemctl): [ OK ]
# netstat -unltp |grep fdfs
[root@Storage02 ~]# netstat -unltp |grep fdfs
tcp 0 0 0.0.0.0:23000 0.0.0.0:* LISTEN 3288/fdfs_storaged
5、FastDFS Nginx安装配置
5.1、Storage服务器配置Nginx
1、为Storage服务器安装Nginx,需要将nginx-1.8.1.tar.gz和fastdfs-nginx-module-master.zip 的安装包解压。
# tar –zxvf nginx-1.8.1.tar.gz
# unzip fastdfs-nginx-module-master.zip
2、进入Nginx-1.8.1目录下# ./configure --prefix=/usr/local/nginxs--add-module=/media/fastdfs-nginx-module-master/src
# make
# make install
3、安装完成进入/usr/local/nginxs/目录下,如下图所示:
4、修改nginx的配置文件,进入conf目录打开nginx.conf文件
listen 9999;
location ~/gwmdfs1/M00 {
root /home/fastdfs_storage_data/data;
ngx_fastdfs_module;
}
5、拷贝配置文件到/etc/fdfs目录下,Media目录为所有软件包安装的目录。
# cp /media/fastdfs-5.09/conf/http.conf/etc/fdfs/
# cp /media/fastdfs-5.09/conf/mime.types /etc/fdfs/
# cp/media/fastdfs-nginx-module-master/src/mod_fastdfs.conf /etc/fdfs/
6、修改/etc/fdfs/mod-fastdfs.conf文件
connect_timeout=2
network_timeout=30
base_path=/home/fastdfs_storage
load_fdfs_parameters_from_tracker=true
storage_sync_file_max_delay = 86400
use_storage_id = false
storage_ids_filename = storage_ids.conf
tracker_server=192.168.18.2:22122
tracker_server=192.168.18.3:22122
storage_server_port=23000
group_name=gwmdfs1
url_have_group_name = true
store_path_count=1
store_path0=/home/fastdfs_storage_data
log_level=info
log_filename=
response_mode=proxy
if_alias_prefix=
flv_support = true
flv_extension = flv
group_count = 2
[group1]
group_name=gwmdfs1
storage_server_port=23000
store_path_count=1
store_path0=/home/fastdfs_storage_data
[group2]
group_name=gwmdfs2
storage_server_port=23000
store_path_count=1
store_path0=/home/fastdfs_storage_data
7、建立M00至存储目录的符号连接:
#ln -s /home/fastdfs_storage_data/data /home/fastdfs_storage_data/data/M00
8、启动Nginx:
#/usr/local/nginxs/sbin/nginx
# http://192.168.18.x:9999
5.2、Tracker服务器配置Nginx
1、进入Nginx-1.8.1目录下# ./configure --prefix=/usr/local/nginxt--add-module=/media/fastdfs-nginx-module-master/src
# make
# make install
2、修改/usr/local/nginxt/conf/nginx.conf配置文件
worker_processes 1;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
sendfile on;
keepalive_timeout 65;
upstream fdfs_gwmdfs1 {
server 192.168.18.2:9999;
server 192.168.18.4:9999;
}
upstream fdfs_gwmdfs2 {
server 192.168.18.3:9999;
server 192.168.18.5:9999;
}
server {
listen 80;
server_name localhost;
location /gwmdfs1/M00 {
proxy_pass http://fdfs_gwmdfs1;
}
location /gwmdfs2/M00 {
proxy_pass http://fdfs_gwmdfs2;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
3、启动nginx服务
# /usr/local/nginxt/sbin/nginx –t //启动前可测试一下nginx.conf配置是否正确。
# /usr/local/nginxt/sbin/nginx
6、FastDFS测试验证
1、修改/etc/fdfs/client.conf文件
connect_timeout=30
network_timeout=60
base_path=/home/fastdfs_storage
tracker_server=192.168.18.3:22122
tracker_server=192.168.18.2:22122
log_level=info
use_connection_pool = false
connection_pool_max_idle_time = 3600
load_fdfs_parameters_from_tracker=false
use_storage_id = false
storage_ids_filename = storage_ids.conf
http.tracker_server_port=80
2、上传文件测试
[root@Tracker01 media]# /usr/bin/fdfs_upload_file /etc/fdfs/client.conf /media/0.PNG
gwmdfs1/M00/00/00/wKgSAljcv7-AVM2rAAA7LOqK6Ik882.PNG
[root@Tracker02 media]# /usr/bin/fdfs_upload_file /etc/fdfs/client.conf /media/1.PNG
gwmdfs1/M00/00/00/wKgSBFjcv8mAKuuRAABWJnPR5Ew861.PNG
3、通过IE查看
http://192.168.18.2/gwmdfs1/M00/00/00/wKgSBFjcv8mAKuuRAABWJnPR5Ew861.PNG
http://192.168.18.3/gwmdfs1/M00/00/00/wKgSBFjcv8mAKuuRAABWJnPR5Ew861.PNG
http://192.168.18.2/gwmdfs1/M00/00/00/wKgSAljcv7-AVM2rAAA7LOqK6Ik882.PNG
http://192.168.18.3/gwmdfs1/M00/00/00/wKgSAljcv7-AVM2rAAA7LOqK6Ik882.PNG
4、通过存储服务器上查看
5、监控FastDFS状态
[root@Tracker01 00]# /usr/bin/fdfs_monitor /etc/fdfs/storage.conf |more
[2017-03-30 16:38:06] DEBUG - base_path=/home/fastdfs_storage, connect_timeout=30, network_timeout=60, tracker_server_count=2, anti_steal_token=0, anti_steal_secret_key length=0, use_connection_pool=0, g_connection_pool_max_idle_time=3600s, use_storage_id=0, storage server id count: 0
server_count=2, server_index=1
tracker server is 192.168.18.3:22122
group count: 2
Group 1:
group name = gwmdfs1
disk total space = 49072 MB
disk free space = 49020 MB
trunk free space = 0 MB
storage server count = 2
active server count = 2
storage server port = 23000
storage HTTP port = 8888
store path count = 1
subdir count per path = 256
current write server index = 0
current trunk file id = 0
Storage 1:
id = 192.168.18.2
ip_addr = 192.168.18.2 (Tracker01) ACTIVE
http domain =
version = 5.09
join time = 2017-03-29 17:17:32
up time = 2017-03-30 15:28:24
total storage = 49072 MB
free storage = 49020 MB
upload priority = 10
store_path_count = 1
subdir_count_per_path = 256
storage_port = 23000
storage_http_port = 8888
current_write_path = 0
source storage id =
if_trunk_server = 0
connection.alloc_count = 256
connection.current_count = 1
connection.max_count = 2
total_upload_count = 1
success_upload_count = 1
total_append_count = 0
success_append_count = 0
total_modify_count = 0
success_modify_count = 0
total_truncate_count = 0
success_truncate_count = 0
total_set_meta_count = 0
success_set_meta_count = 0
total_delete_count = 0
success_delete_count = 0
total_download_count = 0
success_download_count = 0
total_get_meta_count = 0
success_get_meta_count = 0
total_create_link_count = 0
success_create_link_count = 0
total_delete_link_count = 0
success_delete_link_count = 0
total_upload_bytes = 15148
success_upload_bytes = 15148
total_append_bytes = 0
success_append_bytes = 0
total_modify_bytes = 0
success_modify_bytes = 0
stotal_download_bytes = 0
success_download_bytes = 0
total_sync_in_bytes = 22054
success_sync_in_bytes = 22054
total_sync_out_bytes = 0
success_sync_out_bytes = 0
total_file_open_count = 2
success_file_open_count = 2
total_file_read_count = 0
success_file_read_count = 0
total_file_write_count = 2
success_file_write_count = 2
last_heart_beat_time = 2017-03-30 16:37:54
last_source_update = 2017-03-30 16:20:14
last_sync_update = 2017-03-30 16:20:27
last_synced_timestamp = 2017-03-30 16:20:25 (-1s delay)
Storage 2:
id = 192.168.18.4
ip_addr = 192.168.18.4 (Storage01) ACTIVE
http domain =
version = 5.09
join time = 2017-03-29 17:18:47
up time = 2017-03-30 15:33:18
total storage = 49072 MB
free storage = 49020 MB
upload priority = 10
store_path_count = 1
subdir_count_per_path = 256
storage_port = 23000
storage_http_port = 8888
current_write_path = 0
source storage id = 192.168.18.2
if_trunk_server = 0
connection.alloc_count = 256
connection.current_count = 1
connection.max_count = 2
total_upload_count = 1
success_upload_count = 1
total_append_count = 0
success_append_count = 0
total_modify_count = 0
success_modify_count = 0
total_truncate_count = 0
success_truncate_count = 0
total_set_meta_count = 0
success_set_meta_count = 0
total_delete_count = 0
success_delete_count = 0
total_download_count = 0
success_download_count = 0
total_get_meta_count = 0
success_get_meta_count = 0
total_create_link_count = 0
success_create_link_count = 0
total_delete_link_count = 0
success_delete_link_count = 0
total_upload_bytes = 22054
success_upload_bytes = 22054
total_append_bytes = 0
success_append_bytes = 0
total_modify_bytes = 0
success_modify_bytes = 0
stotal_download_bytes = 0
success_download_bytes = 0
total_sync_in_bytes = 15148
success_sync_in_bytes = 15148
total_sync_out_bytes = 0
success_sync_out_bytes = 0
total_file_open_count = 2
success_file_open_count = 2
total_file_read_count = 0
success_file_read_count = 0
total_file_write_count = 2
success_file_write_count = 2
last_heart_beat_time = 2017-03-30 16:37:47
last_source_update = 2017-03-30 16:20:24
last_sync_update = 2017-03-30 16:20:24
last_synced_timestamp = 2017-03-30 16:20:15 (-1s delay)
Group 2:
group name = gwmdfs2
disk total space = 49072 MB
disk free space = 49020 MB
trunk free space = 0 MB
storage server count = 2
active server count = 2
storage server port = 23000
storage HTTP port = 8888
store path count = 1
subdir count per path = 256
current write server index = 0
current trunk file id = 0
Storage 1:
id = 192.168.18.3
ip_addr = 192.168.18.3 (Tracker02) ACTIVE
http domain =
version = 5.09
join time = 2017-03-29 17:21:37
up time = 2017-03-30 15:31:14
total storage = 49072 MB
free storage = 49020 MB
upload priority = 10
store_path_count = 1
subdir_count_per_path = 256
storage_port = 23000
storage_http_port = 8888
current_write_path = 0
source storage id =
if_trunk_server = 0
connection.alloc_count = 256
connection.current_count = 1
connection.max_count = 1
total_upload_count = 0
success_upload_count = 0
total_append_count = 0
success_append_count = 0
total_modify_count = 0
success_modify_count = 0
total_truncate_count = 0
success_truncate_count = 0
total_set_meta_count = 0
success_set_meta_count = 0
total_delete_count = 0
success_delete_count = 0
total_download_count = 0
success_download_count = 0
total_get_meta_count = 0
success_get_meta_count = 0
total_create_link_count = 0
success_create_link_count = 0
total_delete_link_count = 0
success_delete_link_count = 0
total_upload_bytes = 0
success_upload_bytes = 0
total_append_bytes = 0
success_append_bytes = 0
total_modify_bytes = 0
success_modify_bytes = 0
stotal_download_bytes = 0
success_download_bytes = 0
total_sync_in_bytes = 0
success_sync_in_bytes = 0
total_sync_out_bytes = 0
success_sync_out_bytes = 0
total_file_open_count = 0
success_file_open_count = 0
total_file_read_count = 0
success_file_read_count = 0
total_file_write_count = 0
success_file_write_count = 0
last_heart_beat_time = 2017-03-30 16:37:44
last_source_update = 1970-01-01 08:00:00
last_sync_update = 1970-01-01 08:00:00
last_synced_timestamp = 1970-01-01 08:00:00
Storage 2:
id = 192.168.18.5
ip_addr = 192.168.18.5 (Storage02) ACTIVE
http domain =
version = 5.09
join time = 2017-03-29 17:22:02
up time = 2017-03-30 15:34:01
total storage = 49072 MB
free storage = 49020 MB
upload priority = 10
store_path_count = 1
subdir_count_per_path = 256
storage_port = 23000
storage_http_port = 8888
current_write_path = 0
source storage id = 192.168.18.3
if_trunk_server = 0
connection.alloc_count = 256
connection.current_count = 1
connection.max_count = 1
total_upload_count = 0
success_upload_count = 0
total_append_count = 0
success_append_count = 0
total_modify_count = 0
success_modify_count = 0
total_truncate_count = 0
success_truncate_count = 0
total_set_meta_count = 0
success_set_meta_count = 0
total_delete_count = 0
success_delete_count = 0
total_download_count = 0
success_download_count = 0
total_get_meta_count = 0
success_get_meta_count = 0
total_create_link_count = 0
success_create_link_count = 0
total_delete_link_count = 0
success_delete_link_count = 0
total_upload_bytes = 0
success_upload_bytes = 0
total_append_bytes = 0
success_append_bytes = 0
total_modify_bytes = 0
success_modify_bytes = 0
stotal_download_bytes = 0
success_download_bytes = 0
total_sync_in_bytes = 0
success_sync_in_bytes = 0
total_sync_out_bytes = 0
success_sync_out_bytes = 0
total_file_open_count = 0
success_file_open_count = 0
total_file_read_count = 0
success_file_read_count = 0
total_file_write_count = 0
success_file_write_count = 0
last_heart_beat_time = 2017-03-30 16:38:02
last_source_update = 1970-01-01 08:00:00
last_sync_update = 1970-01-01 08:00:00
last_synced_timestamp = 1970-01-01 08:00:00
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