vttablet error : open too many files about vitess HOT 6 CLOSED

The default fd limit is usually not enough. You should change it to a large value, like 100,000. Some instructions here: http://www.cyberciti.biz/faq/linux-increase-the-maximum-number-of-open-files/.

from vitess.

thank you sougou .
i change the fd from 1024 to 65535 , and will try again.

from vitess.

Since this is atleast the second time someone has had this same issue, should we make a mention of this in our docs?

from vitess.

@enisoc where would be a good place to mention this?

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I vote for putting it in an FAQ. It doesn't seem to be universally necessary to change the default. For example, on my GCE micro instance running Ubuntu, the default is apparently well over 100K.

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I think it is worth to mention check fd limits on your machine and it is better to give a suggested number (e.g. 65536) from vitess side.

e.g. HBase mentions that in its book.
See section "Limits on Number of Files and Processes (ulimit) (http://hbase.apache.org/book.html )

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