dido:public:ra:xapend:xapend.a_glossary:d:durability
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dido:public:ra:xapend:xapend.a_glossary:d:durability [2021/06/23 17:38] char |
dido:public:ra:xapend:xapend.a_glossary:d:durability [2021/10/04 13:40] (current) 50.19.247.197 ↷ Links adapted because of a move operation |
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| ===== Durability ===== | ===== Durability ===== | ||
| - | [[dido:public:ra:xapend:xapend.a_glossary| Return to Glossary ]] | + | [[dido:public:ra:xapend:xapend.a_glossary:start| Return to Glossary ]] |
| **Durability** is responsible for maintaining historical data between services and providing historical data to late joining applications. Specifies if [[dido:public:ra:xapend:xapend.a_glossary:s:sample|Samples]] should outlive their [[dido:public:ra:xapend:xapend.a_glossary:d:data_writer|Data Writers]] for late joiners. The longer a sample lives the greater the overhead passed to the [[dido:public:ra:xapend:xapend.a_glossary:d:dds]] becomes as it moves from dropping samples, to keeping them in shared memory, and to writing them to hard disk. Provided variants include: | **Durability** is responsible for maintaining historical data between services and providing historical data to late joining applications. Specifies if [[dido:public:ra:xapend:xapend.a_glossary:s:sample|Samples]] should outlive their [[dido:public:ra:xapend:xapend.a_glossary:d:data_writer|Data Writers]] for late joiners. The longer a sample lives the greater the overhead passed to the [[dido:public:ra:xapend:xapend.a_glossary:d:dds]] becomes as it moves from dropping samples, to keeping them in shared memory, and to writing them to hard disk. Provided variants include: | ||
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| <wrap>Data [[dido:public:ra:xapend:xapend.a_glossary:i:instance|instance]] availability for late joining data reader is tied to the DataWriter availability.</wrap> | <wrap>Data [[dido:public:ra:xapend:xapend.a_glossary:i:instance|instance]] availability for late joining data reader is tied to the DataWriter availability.</wrap> | ||
| * **Transient** \\ | * **Transient** \\ | ||
| - | <wrap>Data sample availability outlives the data writer.</wrap> | + | <wrap>Data sample [[dido:public:ra:xapend:xapend.a_glossary:a:availability|availability]] outlives the data writer.</wrap> |
| * **Persistent** \\ | * **Persistent** \\ | ||
| <wrap>Data sample availability outlives system restarts.</wrap> | <wrap>Data sample availability outlives system restarts.</wrap> | ||
dido/public/ra/xapend/xapend.a_glossary/d/durability.1624484335.txt.gz · Last modified: 2021/06/23 17:38 by char
