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Interpreting MessageQueueSend state - Mailing list pgsql-general

From Benjamin Leis
Subject Interpreting MessageQueueSend state
Date
Msg-id CADP9qHt+nGXHB8m=bnpce8PnvC4m=5Fi7UoxvUoMR-zGH8_dAQ@mail.gmail.com
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Responses Re: Interpreting MessageQueueSend state
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I'm looking at a pg_stat_activity dump where there are a group of active
threads stuck for a long time in MessageQueueSend

7:52.394089+00 | IPC | MessageQueueSend | active |
| 27406510 | -5892847938856697008 | SELECT ....

Does this mean they are blocked on clients reading data or does it
represent something blocking on the server side?
Thanks
Ben

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