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Fixed a couple bugs in S3Storage.

Browse Source 
- there was no closing of any file descriptors (!!)
 - there was the typo in the connection pruning code s.t. nothing
   would get pruned.
 - added -lm to the libmarias3 stuff, was getting a linker error, not sure why.
This commit is contained in:
Patrick LeBlanc
2019-05-16 13:31:00 -05:00
parent b1478f347b
commit 8ec7e4a9af
5 changed files with 49 additions and 30 deletions
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2
CMakeLists.txt
View File

@@ -49,7 +49,7 @@ set(S3API_DIR ${CMAKE_CURRENT_SOURCE_DIR}/libmarias3)
include(ExternalProject)
ExternalProject_Add(ms3
SOURCE_DIR ${S3API_DIR}
CONFIGURE_COMMAND autoreconf -fi ${S3API_DIR} && ${S3API_DIR}/configure --enable-shared=no --prefix=${CMAKE_CURRENT_BINARY_DIR} ${S3_CONFIGURE_OPT}
CONFIGURE_COMMAND autoreconf -fi ${S3API_DIR} && LIBS=-lm ${S3API_DIR}/configure --enable-shared=no --prefix=${CMAKE_CURRENT_BINARY_DIR} ${S3_CONFIGURE_OPT}
BUILD_COMMAND make
BUILD_IN_SOURCE 0
INSTALL_DIR ${CMAKE_CURRENT_BINARY_DIR}

2
libmarias3

Submodule libmarias3 updated: 6d8be7ec6d...d0bee4a257

2
src/Cache.cpp
View File

@@ -364,7 +364,7 @@ void Cache::deletedObject(const string &key, size_t size)
boost::unique_lock<boost::recursive_mutex> s(lru_mutex);
assert(currentCacheSize >= size);
M_LRU_t::iterator mit = m_lru.find(key);
assert(mit != m_lru.end());
assert(mit != m_lru.end()); // TODO: 5/16/19 - got this assertion using S3 by running test000, then test000 again.
assert(doNotEvict.find(mit->lit) == doNotEvict.end());
lru.erase(mit->lit);
m_lru.erase(mit);

67
src/S3Storage.cpp
View File

@@ -7,6 +7,7 @@
#include <sys/types.h>
#include <boost/filesystem.hpp>
#include <iostream>
#include "Utilities.h"
using namespace std;
@@ -105,6 +106,7 @@ S3Storage::~S3Storage()
{
for (auto &conn : freeConns)
ms3_deinit(conn.conn);
ms3_library_deinit();
}
int S3Storage::getObject(const string &sourceKey, const string &destFile, size_t *size)
@@ -120,6 +122,7 @@ int S3Storage::getObject(const string &sourceKey, const string &destFile, size_t
fd = ::open(destFile.c_str(), O_WRONLY | O_CREAT | O_TRUNC, 0600);
if (fd < 0)
return err;
ScopedCloser s(fd);
while (count < len)
{
err = ::write(fd, &data[count], len - count);
@@ -150,7 +153,7 @@ int S3Storage::getObject(const string &sourceKey, boost::shared_array<uint8_t> *
err = ms3_get(creds, bucket.c_str(), sourceKey.c_str(), &_data, &len);
if (err && retryable_error(err))
{
if (err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::getObject(): failed to GET, server says '%s'. bucket = %s, key = %s."
" Retrying...", ms3_server_error(creds), bucket.c_str(), sourceKey.c_str());
else
@@ -161,7 +164,7 @@ int S3Storage::getObject(const string &sourceKey, boost::shared_array<uint8_t> *
} while (err && retryable_error(err));
if (err)
{
if (err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::getObject(): failed to GET, server says '%s'. bucket = %s, key = %s.",
ms3_server_error(creds), bucket.c_str(), sourceKey.c_str());
else
@@ -203,6 +206,7 @@ int S3Storage::putObject(const string &sourceFile, const string &destKey)
errno = l_errno;
return -1;
}
ScopedCloser s(fd);
while (count < len)
{
err = ::read(fd, &data[count], len - count);
@@ -238,7 +242,7 @@ int S3Storage::putObject(const boost::shared_array<uint8_t> data, size_t len, co
s3err = ms3_put(creds, bucket.c_str(), destKey.c_str(), data.get(), len);
if (s3err && retryable_error(s3err))
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::putObject(): failed to PUT, server says '%s'. bucket = %s, key = %s."
" Retrying...", ms3_server_error(creds), bucket.c_str(), destKey.c_str());
else
@@ -249,7 +253,7 @@ int S3Storage::putObject(const boost::shared_array<uint8_t> data, size_t len, co
} while (s3err && retryable_error(s3err));
if (s3err)
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::putObject(): failed to PUT, server says '%s'. bucket = %s, key = %s.",
ms3_server_error(creds), bucket.c_str(), destKey.c_str());
else
@@ -271,7 +275,7 @@ void S3Storage::deleteObject(const string &key)
s3err = ms3_delete(creds, bucket.c_str(), key.c_str());
if (s3err && s3err != MS3_ERR_NOT_FOUND && retryable_error(s3err))
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::deleteObject(): failed to DELETE, server says '%s'. bucket = %s, key = %s."
" Retrying...", ms3_server_error(creds), bucket.c_str(), key.c_str());
else
@@ -283,7 +287,7 @@ void S3Storage::deleteObject(const string &key)
if (s3err != 0 && s3err != MS3_ERR_NOT_FOUND)
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::deleteObject(): failed to DELETE, server says '%s'. bucket = %s, key = %s.",
ms3_server_error(creds), bucket.c_str(), key.c_str());
else
@@ -303,7 +307,7 @@ int S3Storage::copyObject(const string &sourceKey, const string &destKey)
s3err = ms3_copy(creds, bucket.c_str(), sourceKey.c_str(), bucket.c_str(), destKey.c_str());
if (s3err && retryable_error(s3err))
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::copyObject(): failed to copy, server says '%s'. bucket = %s, srckey = %s, "
"destkey = %s. Retrying...", ms3_server_error(creds), bucket.c_str(), sourceKey.c_str(), destKey.c_str());
else
@@ -315,10 +319,11 @@ int S3Storage::copyObject(const string &sourceKey, const string &destKey)
if (s3err)
{
if (s3err == MS3_ERR_SERVER)
// added the add'l check MS3_ERR_NOT_FOUND to suppress error msgs for a legitimate case in IOC::copyFile()
if (ms3_server_error(creds) && s3err != MS3_ERR_NOT_FOUND)
logger->log(LOG_WARNING, "S3Storage::copyObject(): failed to copy, server says '%s'. bucket = %s, srckey = %s, "
"destkey = %s.", ms3_server_error(creds), bucket.c_str(), sourceKey.c_str(), destKey.c_str());
else
else if (s3err != MS3_ERR_NOT_FOUND)
logger->log(LOG_CRIT, "S3Storage::copyObject(): failed to copy, got '%s'. bucket = %s, srckey = %s, "
"destkey = %s.", s3err_msgs[s3err], bucket.c_str(), sourceKey.c_str(), destKey.c_str());
errno = s3err_to_errno[s3err];
@@ -350,7 +355,7 @@ int S3Storage::exists(const string &key, bool *out)
s3err = ms3_status(creds, bucket.c_str(), key.c_str(), &status);
if (s3err && s3err != MS3_ERR_NOT_FOUND && retryable_error(s3err))
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::exists(): failed to HEAD, server says '%s'. bucket = %s, key = %s."
" Retrying...", ms3_server_error(creds), bucket.c_str(), key.c_str());
else
@@ -362,7 +367,7 @@ int S3Storage::exists(const string &key, bool *out)
if (s3err != 0 && s3err != MS3_ERR_NOT_FOUND)
{
if (s3err == MS3_ERR_SERVER)
if (ms3_server_error(creds))
logger->log(LOG_WARNING, "S3Storage::exists(): failed to HEAD, server says '%s'. bucket = %s, key = %s.",
ms3_server_error(creds), bucket.c_str(), key.c_str());
else
@@ -380,17 +385,38 @@ ms3_st * S3Storage::getConnection()
{
boost::unique_lock<boost::mutex> s(connMutex);
// prune the list. Most-idle connections are at the back.
timespec now;
clock_gettime(CLOCK_MONOTONIC_COARSE, &now);
while (!freeConns.empty())
{
Connection &back = freeConns.back();
if (back.idleSince.tv_sec + maxIdleSecs <= now.tv_sec)
{
ms3_deinit(back.conn);
//connMutexes.erase(back.conn);
back.conn = NULL;
freeConns.pop_back();
}
else
break; // everything in front of this entry will not have been idle long enough
}
// get a connection
ms3_st *ret = NULL;
if (freeConns.empty())
{
s.unlock();
ret = ms3_thread_init(key.c_str(), secret.c_str(), region.c_str(), (endpoint.empty() ? NULL : endpoint.c_str()));
ret = ms3_init(key.c_str(), secret.c_str(), region.c_str(), (endpoint.empty() ? NULL : endpoint.c_str()));
if (ret == NULL)
logger->log(LOG_ERR, "S3Storage::getConnection(): ms3_thread_init returned NULL, no specific info to report");
logger->log(LOG_ERR, "S3Storage::getConnection(): ms3_init returned NULL, no specific info to report");
//assert(connMutexes[ret].try_lock());
s.unlock();
return ret;
}
assert(freeConns.front().idleSince.tv_sec + maxIdleSecs > now.tv_sec);
ret = freeConns.front().conn;
freeConns.pop_front();
//assert(connMutexes[ret].try_lock());
return ret;
}
@@ -402,19 +428,8 @@ void S3Storage::returnConnection(ms3_st *ms3)
clock_gettime(CLOCK_MONOTONIC_COARSE, &conn.idleSince);
boost::unique_lock<boost::mutex> s(connMutex);
// prune the list
while (!freeConns.empty())
{
Connection &back = freeConns.back();
if (back.idleSince.tv_sec + maxIdleSecs <= back.idleSince.tv_sec)
{
ms3_deinit(back.conn);
freeConns.pop_back();
}
else
break; // everything in front of this entry will not have been idle enough
}
freeConns.push_front(conn);
//connMutexes[ms3].unlock();
}
}

6
src/S3Storage.h
View File

@@ -3,6 +3,7 @@
#define S3STORAGE_H_
#include <string>
#include <map>
#include "CloudStorage.h"
extern "C"
{
@@ -49,9 +50,12 @@ class S3Storage : public CloudStorage
ms3_st *conn;
};
// for sanity checking
//std::map<ms3_st *, boost::mutex> connMutexes;
boost::mutex connMutex;
std::deque<Connection> freeConns; // using this as a stack to keep lru objects together
const time_t maxIdleSecs = 120;
const time_t maxIdleSecs = 30;
};