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BUGFIX: break deadlock at memctx and part ctx

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obdev 2023-02-10 10:11:11 +00:00 committed by ob-robot
parent 58875bd2b7
commit 3648a21c43
3 changed files with 59 additions and 43 deletions
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3
src/storage/memtable/ob_memtable_context.cpp
View File

@ -1280,7 +1280,8 @@ int ObMemtableCtx::register_multi_source_data_if_need_(
// TODO: yanyuan.cxf need seqno to do rollback.
} else if (OB_FAIL(part_ctx->register_multi_data_source(type,
buf,
serialize_size))) {
serialize_size,
true /* try lock */))) {
TRANS_LOG(WARN, "register to multi source data failed", K(ret));
} else {
// do nothing

18
src/storage/tx/ob_trans_part_ctx.cpp
View File

@ -5680,7 +5680,8 @@ int ObPartTransCtx::notify_data_source_(const NotifyType notify_type,
int ObPartTransCtx::register_multi_data_source(const ObTxDataSourceType data_source_type,
const char *buf,
const int64_t len)
const int64_t len,
const bool try_lock)
{
int ret = OB_SUCCESS;
int tmp_ret = OB_SUCCESS;
@ -5688,8 +5689,19 @@ int ObPartTransCtx::register_multi_data_source(const ObTxDataSourceType data_sou
ObString data;
void *ptr = nullptr;
ObTxBufferNodeArray tmp_array;
bool need_lock = true;
CtxLockGuard guard(lock_);
if (try_lock) {
// avoid deadlock, but give a timeout ts to avoid lock conflict short time.
ret = lock_.lock(100000 /* 100ms */);
// lock timeout need retry again outside.
ret = OB_TIMEOUT == ret ? OB_EAGAIN : ret;
need_lock = false;
} else {
// do nothing
}
if (OB_SUCC(ret)) {
CtxLockGuard guard(lock_, need_lock);
if (OB_UNLIKELY(nullptr == buf || len <= 0 || data_source_type <= ObTxDataSourceType::UNKNOWN
|| data_source_type >= ObTxDataSourceType::MAX_TYPE)) {
@ -5734,7 +5746,7 @@ int ObPartTransCtx::register_multi_data_source(const ObTxDataSourceType data_sou
TRANS_LOG(WARN, "submit mds log failed", K(tmp_ret));
}
}
}
if (OB_FAIL(ret)) {
TRANS_LOG(WARN,
"register MDS redo in part_ctx failed",

5
src/storage/tx/ob_trans_part_ctx.h
View File

@ -378,7 +378,10 @@ public:
role_state_ = for_replay ? TxCtxRoleState::FOLLOWER : TxCtxRoleState::LEADER;
}
int register_multi_data_source(const ObTxDataSourceType type, const char *buf, const int64_t len);
int register_multi_data_source(const ObTxDataSourceType type,
const char *buf,
const int64_t len,
const bool try_lock = false);
const share::SCN get_start_log_ts()
{