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From Stevo Slavić <ssla...@gmail.com>
Subject Re: Log dir locked after ZK shutdown
Date Wed, 03 Sep 2014 15:36:59 GMT
Thanks Rakesh for the heads up and tips!

Kind regards,
Stevo Slavic


On Tue, Sep 2, 2014 at 7:55 PM, Rakesh Radhakrishnan <
rakeshr.apache@gmail.com> wrote:

> Hi Stevo Slavic,
>
> I hope you are experimenting with standalone server. Please see
> ZooKeeperServerMain#runFromConfig() to see how a standalone server can be
> started/shutdown.  Also, you can refer ZooKeeperServerMainTest to see
> standalone tests.
>
> Yes, ZKServer#shutdown is not releasing all the resources, instead it is
> only clearing. One reason I can see is - in case of quorum lost, before
> entering into the next leader election phase it will only clear out all the
> data structures maintained in its database by calling #shutdown. Server
> will keep the I/O resources in hand as re-establishing resources is again
> costlier one.
>
> Regards,
> Rakesh
>
>
> On Tue, Sep 2, 2014 at 10:06 PM, Stevo Slavić <sslavic@gmail.com> wrote:
>
>> Found out through experiment - after shoutdown I also had to close ZK
>> server database.
>>
>> I wonder why isn't this part of the server shutdown? ZooKeeperServer
>> shutdown currently (ZK 3.4.6) calls only clear on database.
>>
>> Kind regards,
>> Stevo Slavic.
>>
>>
>> On Tue, Sep 2, 2014 at 5:19 PM, Stevo Slavić <sslavic@gmail.com> wrote:
>>
>> > Hello ZooKeeper community,
>> >
>> > In ZK (3.4.6) related tests, if I try to delete ZK data directory
>> > immediatelly after calling shutdown on server connection factory, only
>> on
>> > Windows I get an IOException that a file could not be deleted. On Linux
>> and
>> > Mac same code works well.
>> >
>> > I'm creating a temporary director using Java 7
>> > Files.createTempDirectory("zookeeper-")
>> > resulting in directory similar to the following:
>> >
>> > C:\Users\Foo\AppData\Local\Temp\zookeeper-4563523978878660799\
>> >
>> > Then ZooKeeper is configured to use this as data directory.
>> >
>> > To delete it I'm using FileUtils.deleteDirectory from commons-io (2.4)
>> > It walks the directory tree cleaning it up. It fails deleting log file
>> >
>> >
>> >
>> C:\Users\Foo\AppData\Local\Temp\zookeeper-4563523978878660799\version-2\log.1
>> >
>> > Is there something else I have to call to make sure
>> > ZooKeeperServer/ServerCnxnFactory is stopped and released all locks?
>> > If not, is this a known bug/feature?
>> >
>> >
>> > Kind regards,
>> > Stevo Slavic.
>> >
>>
>
>

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