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rpc: Split option -rpctimeout into -rpcservertimeout and -rpcclienttimeout

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The two timeouts for the server and client, are essentially different:

- In the case of the server it should be a lower value to avoid clients
clogging up connection slots

- In the case of the client it should be a high value to accomedate slow
  responses from the server, for example for slow queries or when the
  lock is contended

Split the options into `-rpcservertimeout` and `-rpcclienttimeout` with
respective defaults of 30 and 900.
This commit is contained in:
Wladimir J. van der Laan
2015-09-18 15:45:38 +02:00
parent 8b2d6edaa9
commit 2190ea6c4e
5 changed files with 8 additions and 5 deletions
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5
src/bitcoin-cli.cpp
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@@ -22,6 +22,8 @@
using namespace std;
static const int DEFAULT_HTTP_CLIENT_TIMEOUT=900;
std::string HelpMessageCli()
{
string strUsage;
@@ -37,6 +39,7 @@ std::string HelpMessageCli()
strUsage += HelpMessageOpt("-rpcwait", _("Wait for RPC server to start"));
strUsage += HelpMessageOpt("-rpcuser=<user>", _("Username for JSON-RPC connections"));
strUsage += HelpMessageOpt("-rpcpassword=<pw>", _("Password for JSON-RPC connections"));
strUsage += HelpMessageOpt("-rpcclienttimeout=<n>", strprintf(_("Timeout during HTTP requests (default: %d)"), DEFAULT_HTTP_CLIENT_TIMEOUT));
return strUsage;
}
@@ -150,7 +153,7 @@ UniValue CallRPC(const string& strMethod, const UniValue& params)
struct evhttp_connection *evcon = evhttp_connection_base_new(base, NULL, host.c_str(), port); // TODO RAII
if (evcon == NULL)
throw runtime_error("create connection failed");
evhttp_connection_set_timeout(evcon, GetArg("-rpctimeout", 30));
evhttp_connection_set_timeout(evcon, GetArg("-rpcclienttimeout", DEFAULT_HTTP_CLIENT_TIMEOUT));
HTTPReply response;
struct evhttp_request *req = evhttp_request_new(http_request_done, (void*)&response); // TODO RAII