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Asked: 2026-05-14T03:03:18+00:00

Preliminary : I have an application which maintains a thread pool of about 100

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Preliminary:

I have an application which maintains a thread pool of about 100 threads. Each thread can last about 1-30 seconds before a new task replaces it. When a thread ends, that thread will almost always will result in inserting 1-3 records into a table, this table is used by all of the threads. Right now, no transactional support exists, but I am trying to add that now. Also, the table in question is InnoDB. So…

Goal

I want to implement a transaction for this. The rules for whether or not this transaction commits or rollback reside in the main thread. Basically there is a simple function that will return a boolean.

  1. Can I implement a transaction across multiple connections?
  2. If not, can multiple threads share the same connection? (Note: there are a LOT of inserts going on here, and that is a requirement).
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1 Answer

  1. Editorial Team

    Well, as stated in a different answer you can’t create a transaction across multiple connections. And you can share the single connection across threads. However you need to be very careful with that. You need to make sure that only one thread is writing to the connection at the same time. You can’t just have multiple threads talking across the same connection without synchronizing their activities in some way. Bad things will likely happen if you allow two threads to talk at once (memory corruptions in the client library, etc). Using a mutex or critical section to protect the connection conversations is probably the way to go.

    -Don

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