Re: REINDEX deadlock - Postgresql -9.1

It sounds like you're running out of connections. Have you tried
connecting as postgres? It has 2 or 3 superuser connections reserved
by default.

On Thu, Feb 7, 2013 at 1:38 AM, Anoop K <anoopk6(at)gmail(dot)com> wrote:
> I have the setup in problem state. But I am not able to make psql
> connections to view the lock details.
> psql connections are hanging. Is there any other info which can be collected
> in this state ?
>
> Also we don't know the steps to reproduce the issue.
>
>
> On Thu, Feb 7, 2013 at 1:23 PM, Albe Laurenz <laurenz(dot)albe(at)wien(dot)gv(dot)at>
> wrote:
>>
>> Anoop K wrote:
>> > We are hitting a situation where REINDEX is resulting in postgresql to
>> > go to dead lock state for ever.
>> > On debugging the issue we found that
>> > 3 connections are going in to some dead lock state.
>> >
>> > 1. idle in transaction
>> > 2. REINDEX waiting
>> > 3. SELECT waiting
>> >
>> > All these connections are made in the same minute. Once in deadlock
>> > state we are not able to make new
>> > connections to db.(So not able to view pg_locks also). New connections
>> > appears as 'startup waiting' in
>> > ps output. Initially we suspected <idle in transaction> is the result of
>> > not closing a connection. But
>> > it seems it got stuck after creating a connection and is not able to
>> > proceed.
>> >
>> > Any clues ..
>>
>> Check the contents of pg_locks:
>> What locks does the "idle in transaction" session hold?
>> Who holds the locks that block SELECT, REINDEX and new connections?
>>
>> Turn on log_statement='all' to see what the "idle in transaction"
>> session did since it started.
>>
>> Yours,
>> Laurenz Albe
>
>

--
To understand recursion, one must first understand recursion.