Re: Fwd: How does the partitioned lock manager works?
От
Cui Shijun
Тема
Re: Fwd: How does the partitioned lock manager works?
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306760850704280225t20f49f82sa40712bd07c61f89@mail.gmail.com
Ответ на
Re: Fwd: How does the partitioned lock manager works? (Heikki Linnakangas)
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How does the partitioned lock manager works? "rancpine cui" <rancpine@gmail.com>
Re: How does the partitioned lock manager works? Heikki Linnakangas <heikki@enterprisedb.com>
2007/4/28, Heikki Linnakangas <heikki@enterprisedb.com>:
I suddenly realize that LW locks are used to manage the lock hash table.So
when a item is to be inserted into hash table, we must gain that partition lock
first to change that table.
As the insertion algorithm described, a specific partition lock manage some
items, but these items can be stored in anywhere of the hash table,not
necessarily in a bucket chain.
So there are some problems with "different partitions use different hash chains",
a partition can use different hash chains,too. Am I right?
3. Lock that partition
6. Unlock partition
I suddenly realize that LW locks are used to manage the lock hash table.So
when a item is to be inserted into hash table, we must gain that partition lock
first to change that table.
As the insertion algorithm described, a specific partition lock manage some
items, but these items can be stored in anywhere of the hash table,not
necessarily in a bucket chain.
a partition can use different hash chains,too. Am I right?
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