it goes up by exactly 2000, which is the number of loop iterations
exactly? are you sure this isn't just counting your open sockets?
On Fri, Jun 11, 2010 at 1:53 PM, Matthew Conway <m...@backupify.com> wrote:
> Thanks, I just tried apache-cassandra-2010-06-11_12-30-33 (hudson 462) but my
> tests ares still reporting a leak (though not as bad), I do the following
> (ruby tests using cassandra_object/cassandra, but you should be able to get
> the idea):
>
> should "not leak file descriptors" do
> cassandra_pid = `ps ax | grep [C]assandraDaemon | awk '{print $1}'`
> original_count = `lsof -p #{cassandra_pid}`.lines.to_a.size
> assert original_count > 0
> count = 1000
> count.times do |n|
> ChildMetadatum.new(:service_id => 4, :child_id => "def#{n}",
> :updated => Time.now, :labels => ["label2", "label3"]).save!
> end
> count.times do |n|
> ChildMetadatum.find_by_natural_key(:service_id => 4, :child_id =>
> "def#{n}")
> ChildMetadatum.find_all_by_service_id(3)
> end
> new_count = `lsof -p #{cassandra_pid}`.lines.to_a.size
> assert new_count > 0
> assert new_count < original_count * 1.1, "File descriptors leaked from
> #{original_count} to #{new_count}"
> end
>
> Which reports: File descriptors leaked from 112 to 2112.
> SHould I reopen the bug or create a new one?
>
> Matt
>
> On Jun 10, 2010, at Thu Jun 10, 6:40 PM, Jonathan Ellis wrote:
>
>> Fixed in https://issues.apache.org/jira/browse/CASSANDRA-1178
>>
>> On Thu, Jun 10, 2010 at 9:01 AM, Matt Conway <m...@backupify.com> wrote:
>>> Hi All,
>>> I'm running a small 4-node cluster with minimal load using
>>> the 2010-06-08_12-31-16 build from trunk, and its exhausting file
>>> descriptors pretty quickly (65K in less than an hour). Here's a list of the
>>> files I see it leaking, I can do a more specific query if you'd like. Am I
>>> doing something wrong, is this a known problem, something being done wrong
>>> from the client side, or something else? Any help appreciated, thanks,
>>> Matt
>>> r...@cassandra01:~# lsof -p `ps ax | grep [C]assandraDaemon | awk '{print
>>> $1}'` | awk '{print $9}' | sort | uniq -c | sort -n | tail -n 5
>>> 3 /mnt/cassandra/data/system/Schema-c-2-Data.db
>>> 1278 /mnt/cassandra/data/MyKeyspace/MyColumnType-c-7-Data.db
>>> 1405 /mnt/cassandra/data/MyKeyspace/MyColumnType-c-9-Data.db
>>> 1895 /mnt/cassandra/data/MyKeyspace/MyColumnType-c-5-Data.db
>>> 26655 /mnt/cassandra/data/MyKeyspace/MyColumnType-c-11-Data.db
>>>
>>>
>>
>>
>>
>> --
>> Jonathan Ellis
>> Project Chair, Apache Cassandra
>> co-founder of Riptano, the source for professional Cassandra support
>> http://riptano.com
>
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com
