just-mrrc: support retry options

1 files changed, 15 insertions, 0 deletions

diff --git a/share/man/just-mrrc.5.md b/share/man/just-mrrc.5.md
index c9e4a073..8ebaff18 100644
--- a/share/man/just-mrrc.5.md
+++ b/share/man/just-mrrc.5.md
@@ -127,6 +127,21 @@ The just-mrrc is given by a JSON object.
    as `--remote-execution-property` to the invocation of the build
    tool, if **`just-mr`** is used as a launcher.
 
+ - The value for the key *`"max attempts"`*, if provided, has
+   to be a number. If a remote procedure call (rpc) returns
+   `grpc::StatusCode::UNAVAILABLE`, that rpc is retried at most
+   this number of times.
+
+ - The value for the key *`"initial backoff seconds"`*, if provided,
+   has to be a number. Before retrying an rpc the second time, the
+   client will wait the given amount of seconds plus a jitter, to
+   better distribute the workload.
+
+ - The value for the key *`"max backoff seconds"`*, if provided,
+   has to be a number. Normally, on subsequent retries, the backoff
+   time is doubled; this number specifies the maximal time between
+   attempts of an rpc, not counting the jitter.
+
  - The value for the key *`"just files"`* is a JSON object. The keys correspond
    to options that some **`just`** subcommands accept and require a file as
    argument. For each key, the value is a list of location objects. When