Log transaction durations

[gbrodman]

There can be delays in releasing predicate locks when we have transactions that are long-lived -- even delays in releasing predicate locks acquired by shorter-lived transactions. Logging the transaction duration will allow us to get a sense as to transaction durations during busy times.

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This change is 

[weiminyu]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion

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core/src/main/java/google/registry/persistence/transaction/JpaTransactionManagerImpl.java line 279 at r1 (raw file):

      T result = work.call();
      txn.commit();
      logger.atInfo().log(

Consider throttling using logger's atMostEvery method or filter out very short transactions.

Code quote:

logger.atInfo().log(

[gbrodman]

Reviewable status: 0 of 1 files reviewed, 1 unresolved discussion (waiting on @weiminyu)

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core/src/main/java/google/registry/persistence/transaction/JpaTransactionManagerImpl.java line 279 at r1 (raw file):

Previously, weiminyu (Weimin Yu) wrote…

Consider throttling using logger's atMostEvery method or filter out very short transactions.

yeah, maybe we can filter out ones less than.....100ms?