add histogram to more core s3 calls

and make their histograms appear only when the endpoint has been called

add histogram to more core s3 calls

and make their histograms appear only when the endpoint has been called

Log PostgreSQL metastore error (quickwit-oss#5530)

Adding some kind of throttling on the janitor to prevent it from

hammering the metastore on airmail.

Adding some kind of throttling on the janitor to prevent it from

hammering the metastore on airmail.

adding post filter of index_uids

Sending the right message in indexing service

Sending the right message in indexing service

Better shutdown of merge pipelines.

Before this PR, when the last indexing pipeline
is shutdown, the merge pipeline associated to an index
would be abruptly shutdown too.

This PR makes two changes to this behavior.
First, we wait for ongoing or pending merges to
be executed before shutting down the pipeline.

Second, merge policy get the opportunity to offer
a list of extra merges to run.

This functionality is introduced to help users
who migrated from elasticsearch and rely on a daily
indexes.

Closes quickwit-oss#5474

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Co-authored-by: trinity-1686a <[email protected]>