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Detect server deadlocks and trigger the auto-restart mechanism.

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This commit is contained in:
JoelKatz
2013-05-08 15:21:22 -07:00
parent 34a15c2baa
commit 04b0f968fd
3 changed files with 28 additions and 1 deletions
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24
src/cpp/ripple/LoadManager.cpp
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@@ -22,7 +22,7 @@ int upTime()
LoadManager::LoadManager(int creditRate, int creditLimit, int debitWarn, int debitLimit) :
mCreditRate(creditRate), mCreditLimit(creditLimit), mDebitWarn(debitWarn), mDebitLimit(debitLimit),
mShutdown(false), mUptime(0), mCosts(LT_MAX)
mShutdown(false), mUptime(0), mDeadLock(0), mCosts(LT_MAX)
{
addLoadCost(LoadCost(LT_InvalidRequest, -10, LC_CPU | LC_Network));
addLoadCost(LoadCost(LT_RequestNoReply, -1, LC_CPU | LC_Disk));
@@ -67,6 +67,11 @@ LoadManager::~LoadManager()
while (1);
}
void LoadManager::noDeadLock()
{
boost::mutex::scoped_lock sl(mLock);
mDeadLock = mUptime;
}
int LoadManager::getCreditRate() const
{
@@ -321,6 +326,11 @@ int LoadManager::getUptime()
return mUptime;
}
static void LogDeadLock(int dlTime)
{
cLog(lsWARNING) << "Server stalled for " << dlTime << " seconds.";
}
void LoadManager::threadEntry()
{
NameThread("loadmgr");
@@ -335,6 +345,18 @@ void LoadManager::threadEntry()
return;
}
++mUptime;
int dlTime = mUptime - mDeadLock;
if (dlTime >= 10)
{
if ((dlTime % 10) == 0)
{
boost::thread(BIND_TYPE(&LogDeadLock, dlTime)).detach();
}
assert (dlTime < 180);
}
}
bool change;