commit 732f0c1e51bca04091431859918a3b84866373a0
author Alexey Serbin <alexey@apache.org> Thu May 02 18:48:50 2024 -0700
committer Alexey Serbin <alexey@apache.org> Fri May 03 15:59:26 2024 +0000
tree 6bc7153c6d813d72c9da7f00aeb662a654cf9a3e
parent c39e72a98e124e5a12080bac42105b996594d806

[tserver] limit number of trace metrics for TabletCopyClient

The trace metrics registry assumes that the number of entries is quite
small, with the current threshold of 100.  In its turn, a thread pool
unconditionally registers and updates its trace metrics while executing
submitted tasks.  Since a tablet server might host thousands of tablet
replicas, it's not a good idea to include the UUID of the tablet into
the name of the download thread pool spawned by every TabletCopyClient
instance.

This is a follow-up to 0d95304fa46ee5d96bcaa934c7660369f2860e06.

Change-Id: I334aa81aaed2378e7cae558bd8bb9e0f0c970fec
Reviewed-on: http://gerrit.cloudera.org:8080/21393
Tested-by: Marton Greber <greber.mx@gmail.com>
Reviewed-by: Marton Greber <greber.mx@gmail.com>