# Unable to write to avro file from logstash
**URL:** https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410
**Category:** Logstash
**Created:** [February 22, 2016, 4:54pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410 "2016-02-22T16:54:36Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@sdaruna](https://discuss.elastic.co/u/sdaruna)
#### Post date: [February 22, 2016, 4:54pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/1 "2016-02-22T16:54:36Z")
Hi,
I am trying to write the file using avro codel in logstash.
Below is my simple configuration:
===
input {
file {
path =\> "/Users/srini/Downloads/imp/2016-01-22/\*.json"
start\_position =\> "beginning"
}
}
```
output {
file {
path => "/Users/srini/Downloads/imp/2016-01-32/"
codec => avro {schema_uri => "/Users/srini/Sri_Search/av.avsc"}
}
stdout { codec => rubydebug }
}
```
===
After this i have copied a json file to the target folder.
But, nothing is happening.
Below is the json and avsc files.
Json:
`{"username":"miguno","tweet":"Rock: Nerf paper, scissors is fine.","timestamp": 1366150681 }`
Avsc file:
```
{
"type" : "record",
"name" : "twitter_schema",
"namespace" : "com.miguno.avro",
"fields" : [ {
"name" : "username",
"type" : "string",
"doc" : "Name of the user account on Twitter.com"
}, {
"name" : "tweet",
"type" : "string",
"doc" : "The content of the user's Twitter message"
}, {
"name" : "timestamp",
"type" : "long",
"doc" : "Unix epoch time in seconds"
} ],
"doc:" : "A basic schema for storing Twitter messages"
}
```
1. Can we use codec with output format.?
2. Why it is unable to take any data.? I have movied a new file to the folder. At least it is not throwing any error.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [February 22, 2016, 6:05pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/2 "2016-02-22T18:05:44Z")
The destination file (the `path` option of your file output) is a directory. I'm pretty sure it needs to be a path to a file.
---
### Author:  [@sdaruna](https://discuss.elastic.co/u/sdaruna)
#### Post date: [February 22, 2016, 6:09pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/3 "2016-02-22T18:09:40Z")
HI @magnusbaeck
I have changed the configuration to
```
input {
file {
path => "/Users/srini/Downloads/imp/2016-01-22/*.json"
start_position => "beginning"
}
}
output {
file {
path => "/Users/srini/Downloads/imp/2016-01-31/test-%{+YYYY-MM-dd}.avro"
codec => avro { schema_uri => "/Users/srini/Sri_Search/av.avsc" }
}
stdout { codec => rubydebug }
}
```
and restarted the logstash and copied new file into folder. But, still no use.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [February 22, 2016, 6:45pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/4 "2016-02-22T18:45:22Z")
Read the Logstash logs. If there's nothing interested, increase logging verbosity with `--verbose`.
---
### Author:  [@sdaruna](https://discuss.elastic.co/u/sdaruna)
#### Post date: [February 22, 2016, 6:51pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/5 "2016-02-22T18:51:10Z")
Hi @magnusbaeck
I have tried that.. I gave --verbose and nothing has been printed. I have also deleted .sincedb\* (though irrelevant, just to see what it can do).
However, if i gave wrong file that does not match the format, it is throwing error. But nothing is being printed/done for the right files.
Did you get a chance to try with the files that i have given.?
Thank You,
Regards,
Srini.
---
### Author:  [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)
#### Post date: [February 22, 2016, 6:54pm UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/6 "2016-02-22T18:54:49Z")
> Did you get a chance to try with the files that i have given.?
No, I don't have time to do that.
If I were to debug this, I'd make the file input and outputs work okay independently from each other, i.e. first define a stdin input as the only input and pass it data that you know is correct and thus verify that the output works. Perhaps use a stdout output with an avro codec instead of a file output. Increase logging even more with `--debug` as necessary.
---
### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 5:10am UTC](https://discuss.elastic.co/t/unable-to-write-to-avro-file-from-logstash/42410/7 "2017-07-06T05:10:18Z")