csv file input processing using logstash stops working after 2/3 days - elasticsearch

Question

I am using logstash-1.5.1 to process csv file and get upload into elasticsearch-1.5.1.This process should happen for every day.So I put my logstash and elastic search engines up once and left it hoping that csv file processing should happen for every day and get uploaded into elasticsearch.Every day one new csv file is being downloaded from internet and get stored in local folder from where logstash reads. But surprisingly the logstash stop processing the csv file after 2/3 days.I don't know the reason please help me . The logstash input file configuration is as follows.
input {
file {
type => "csv"
path => "D:/Tools/logstash-1.5.1/data/**/*"
start_position => beginning
sincedb_path => "D:/Tools/logstash-1.5.1/sincedb/.sincedb"
}
}
filter {
grok {
match => { "message" => "%{COMBINEDAPACHELOG}" }
}
}
output {
elasticsearch {
host => "localhost"
cluster => "Test"
node_name => "data"
index => "client"
template => "D:/Tools/logstash-1.5.1/lib/elasticsearch-template.json"
template_overwrite => true
}
}

Answer 1

So, try to use logstash-forwarder and please post result, I am really interesting in it.
You can install logstash-forwarder with, for example, this configuration:
{
"network": {
"servers": [ "$YOUR_SERVER:$PORT" ],
"timeout": 20,
"ssl ca": "/path/to/logstash/*.crt_file"
},
"files": [
{
"paths": ["D:/Tools/logstash-1.5.1/data/**/*"],
"fields": { "type": "csv" },
"dead time" : "5m"
}
]
}
And in your logstash server you can use this input:
input {
lumberjack {
port => "$PORT"
ssl_key => "/path/to/your/*.key_file"
ssl_certificate => " "/path/to/your/*.key_file""
}
}