Re: PrepareStatement.execute() blocked because of long time'create index' operation, connection leak

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От Dave Cramer
Тема Re: PrepareStatement.execute() blocked because of long time'create index' operation, connection leak
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Msg-id CADK3HHJL0G=FMMeXG_eqEpmTTdOiXkVQJnpqvST7FiD3sAOECA@mail.gmail.com
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Ответ на PrepareStatement.execute() blocked because of long time 'create index' operation, connection leak  ("jingzhi.zhang@outlook.com" <jingzhi.zhang@outlook.com>)
Ответы Re: PrepareStatement.execute() blocked because of long time'create index' operation, connection leak  (Vladimir Sitnikov <sitnikov.vladimir@gmail.com>)
Re: PrepareStatement.execute() blocked because of long time 'create index' operation, connection leak  ("jingzhi.zhang@outlook.com" <jingzhi.zhang@outlook.com>)
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There is a cancel statement, but I presume you want the create index to succeed. You may have to execute the execute() in a background thread to not block  the main thread


On 6 June 2016 at 12:25, jingzhi.zhang@outlook.com <jingzhi.zhang@outlook.com> wrote:
Hi,


I use jdbc  to create index on a table, the sql of 'create index' cost about 30 minutes.
Finally I found, the jdbc client thread blocked at PrepareStatement.execute(), not finished.
At server side, query pg_stat_activity, the connection state already be ‘idle’ (index creation finished).

Is there any suggestion? How to deal with the client thread blocking (read for a response message?) and connection leak.


Thanks a lot.



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