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| author |  Yuchen Zeng <y-zeng@users.noreply.github.com> | 2017-09-07 12:59:41 -0700 |
|---|---|---|
| committer |  GitHub <noreply@github.com> | 2017-09-07 12:59:41 -0700 |
| commit | b6ef6e9ff5701d15a352f38a450de2af49d19657 (patch) | |
| tree | 183bb602a29faf8717845fe894281e5c1711af90 /doc/environment_variables.md | |
| parent | f54af4832e08f317a05de909e88fdb38ace92cb0 (diff) | |
| parent | b5dd3abad9b38cbd39917543b3991acd6ec368a8 (diff) | |
Merge pull request #12080 from y-zeng/connectivity
Reconnect channels automatically in C++ clients
Diffstat (limited to 'doc/environment_variables.md')
| -rw-r--r-- | doc/environment_variables.md | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/environment_variables.md b/doc/environment_variables.md index a2cde92736..0123f3f25d 100644 --- a/doc/environment_variables.md +++ b/doc/environment_variables.md @@ -113,3 +113,11 @@ some configuration as environment variables that can be set. - native (default)- a DNS resolver based around getaddrinfo(), creates a new thread to perform name resolution - ares - a DNS resolver based around the c-ares library + +* GRPC_DISABLE_CHANNEL_CONNECTIVITY_WATCHER + The channel connectivity watcher uses one extra thread to check the channel + state every 500 ms on the client side. It can help reconnect disconnected + client channels (mostly due to idleness), so that the next RPC on this channel + won't fail. Set to 1 to turn off this watcher and save a thread. Please note + this is a temporary work-around, it will be removed in the future once we have + support for automatically reestablishing failed connections. |