Simplify the Translog constructor by always expecting an existing translog #28676
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bleskes
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v7.0.0
v6.3.0
:Distributed Indexing/Engine
dnhatn
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Feb 14, 2018
| - match: { indices.test.primaries.translog.operations: 1 } | ||
| - gt: { indices.test.primaries.translog.uncommitted_size_in_bytes: $empty_size } | ||
| # we can't check this yet as creation size will contain two empty translog generations. A single | ||
| # non empty generation with one op may be smaller or larger than that. |
s1monw
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Feb 14, 2018
bleskes
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Feb 15, 2018
…nslog (#28676) Currently the Translog constructor is capable both of opening an existing translog and creating a new one (deleting existing files). This PR separates these two into separate code paths. The constructors opens files and a dedicated static methods creates an empty translog.
jasontedor
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Feb 15, 2018
* master: Add a note to the docs that _cat api `help` option cannot be used if an optional url param is used (elastic#28686) Lift error finding utility to exceptions helpers Change "tweet" type to "_doc" (elastic#28690) [Docs] Add missing word in nested.asciidoc (elastic#28507) Simplify the Translog constructor by always expecting an existing translog (elastic#28676) Upgrade t-digest to 3.2 (elastic#28295) (elastic#28305) Add comment explaining lazy declared versions
dnhatn
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Mar 17, 2018
A new engine now can have more than one empty translog since #28676. This cause #testShouldPeriodicallyFlush failed because in the test we asssume an engine should have one empty translog. This commit takes into account the extra translog size of a new engine.
dnhatn
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Mar 17, 2018
A new engine now can have more than one empty translog since #28676. This cause #testShouldPeriodicallyFlush failed because in the test we asssume an engine should have one empty translog. This commit takes into account the extra translog size of a new engine.
dnhatn
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Mar 31, 2018
If a primary executing the only indexing request is on a 6.2 node, the translog uncommitted size will equal to the translog creation size because there is no overhead (eg. multiple empty translog generations) on the old node. Moreover, since other primaries on current nodes did not receive writes, the flush request is no-op on these shards, translog uncommitted size does not change. In this case, the total translog uncommitted size on all primaries equal to the translog creation size. This commit loosens the assertion from less-than to less-than-or-equal to cover this case. Relates #28676
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Currently the Translog constructor is capable both of opening an existing translog and creating a new one (deleting existing files). This PR separates these two into separate code paths. The constructors opens files and a dedicated static methods creates an empty translog.
This PR is part of a bigger refactoring in #28245 , so please ignore any ugliness in the Engine code.