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more intellegent path failure profiling using LRSM

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This commit is contained in:
Jeff Becker 2020-01-03 07:52:19 -05:00
parent 52b13b9f1e
commit a7a101e33c
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GPG key ID: F357B3B42F6F9B05
3 changed files with 34 additions and 7 deletions
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30
llarp/path/path.cpp
View file

@ -135,11 +135,13 @@ namespace llarp
uint64_t currentStatus = status;
size_t index = 0;
absl::optional< RouterID > failedAt;
while(index < hops.size())
{
if(!frames[index].DoDecrypt(hops[index].shared))
{
currentStatus = LR_StatusRecord::FAIL_DECRYPT_ERROR;
failedAt = hops[index].rc.pubkey;
break;
}
llarp::LogDebug("decrypted LRSM frame from ", hops[index].rc.pubkey);
@ -154,22 +156,31 @@ namespace llarp
llarp::LogWarn("malformed frame inside LRCM from ",
hops[index].rc.pubkey);
currentStatus = LR_StatusRecord::FAIL_MALFORMED_RECORD;
failedAt = hops[index].rc.pubkey;
break;
}
llarp::LogDebug("Decoded LR Status Record from ",
hops[index].rc.pubkey);
currentStatus = record.status;
if((currentStatus & LR_StatusRecord::SUCCESS) == 0)
if((record.status & LR_StatusRecord::SUCCESS)
!= LR_StatusRecord::SUCCESS)
{
// failed at next hop
if(index + 1 < hops.size())
{
failedAt = hops[index + 1].rc.pubkey;
}
else
{
failedAt = hops[index].rc.pubkey;
}
break;
}
++index;
}
if(currentStatus & LR_StatusRecord::SUCCESS)
if((currentStatus & LR_StatusRecord::SUCCESS) == LR_StatusRecord::SUCCESS)
{
llarp::LogDebug("LR_Status message processed, path build successful");
auto self = shared_from_this();
@ -177,8 +188,13 @@ namespace llarp
}
else
{
r->routerProfiling().MarkPathFail(this);
if(failedAt.has_value())
{
LogWarn(Name(), " build failed at ", failedAt.value());
r->routerProfiling().MarkHopFail(failedAt.value());
}
else
r->routerProfiling().MarkPathFail(this);
llarp::LogDebug("LR_Status message processed, path build failed");
if(currentStatus & LR_StatusRecord::FAIL_TIMEOUT)
@ -230,7 +246,7 @@ namespace llarp
// TODO: meaningful return value?
return true;
}
} // namespace path
void
Path::EnterState(PathStatus st, llarp_time_t now)

8
llarp/profiling.cpp
View file

@ -180,6 +180,14 @@ namespace llarp
m_Profiles.erase(r);
}
void
Profiling::MarkHopFail(const RouterID& r)
{
lock_t lock(&m_ProfilesMutex);
m_Profiles[r].pathFailCount += 1;
m_Profiles[r].lastUpdated = llarp::time_now_ms();
}
void
Profiling::MarkPathFail(path::Path* p)
{

3
llarp/profiling.hpp
View file

@ -77,6 +77,9 @@ namespace llarp
void
MarkPathSuccess(path::Path* p) LOCKS_EXCLUDED(m_ProfilesMutex);
void
MarkHopFail(const RouterID& r) LOCKS_EXCLUDED(m_ProfilesMutex);
void
ClearProfile(const RouterID& r) LOCKS_EXCLUDED(m_ProfilesMutex);