database/mariadb-columnstore-engine
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MCOL-3557: add config change listeners.

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This commit is contained in:
benthompson15
2019-10-08 13:44:35 -05:00
parent 1af0248ae5
commit 753a77b38c
8 changed files with 144 additions and 45 deletions
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53
storage-manager/src/Cache.cpp
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@@ -56,24 +56,11 @@ Cache::Cache()
Config *conf = Config::get();
logger = SMLogging::get();
string stmp = conf->getValue("Cache", "cache_size");
if (stmp.empty())
{
logger->log(LOG_CRIT, "Cache/cache_size is not set");
throw runtime_error("Please set Cache/cache_size in the storagemanager.cnf file");
}
try
{
maxCacheSize = stoul(stmp);
}
catch (invalid_argument &)
{
logger->log(LOG_CRIT, "Cache/cache_size is not a number");
throw runtime_error("Please set Cache/cache_size to a number");
}
configListener();
conf->addConfigListener(this);
//cout << "Cache got cache size " << maxCacheSize << endl;
stmp = conf->getValue("ObjectStorage", "object_size");
string stmp = conf->getValue("ObjectStorage", "object_size");
if (stmp.empty())
{
logger->log(LOG_CRIT, "ObjectStorage/object_size is not set");
@@ -129,6 +116,7 @@ Cache::Cache()
Cache::~Cache()
{
Config::get()->removeConfigListener(this);
for (auto it = prefixCaches.begin(); it != prefixCaches.end(); ++it)
delete it->second;
}
@@ -334,6 +322,39 @@ void Cache::shutdown()
downloader.reset();
}
void Cache::configListener()
{
Config *conf = Config::get();
SMLogging* logger = SMLogging::get();
if (maxCacheSize == 0)
maxCacheSize = 2147483648;
string stmp = conf->getValue("Cache", "cache_size");
if (stmp.empty())
{
logger->log(LOG_CRIT, "Cache/cache_size is not set. Using current value = %zi",maxCacheSize);
}
try
{
size_t newMaxCacheSize = stoull(stmp);
if (newMaxCacheSize != maxCacheSize)
{
if (newMaxCacheSize >= MIN_CACHE_SIZE)
{
setMaxCacheSize(newMaxCacheSize);
logger->log(LOG_INFO, "Cache/cache_size = %zi",maxCacheSize);
}
else
{
logger->log(LOG_CRIT, "Cache/cache_size is below %u. Check value and suffix are correct in configuration file. Using current value = %zi",MIN_CACHE_SIZE,maxCacheSize);
}
}
}
catch (invalid_argument &)
{
logger->log(LOG_CRIT, "Cache/cache_size is not a number. Using current value = %zi",maxCacheSize);
}
}
}