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author | Alex Gorrod <alexg@wiredtiger.com> | 2014-02-04 11:27:08 +1100 |
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committer | Alex Gorrod <alexg@wiredtiger.com> | 2014-02-04 11:27:08 +1100 |
commit | 4b3a084a3039f3a3eecee39e3b0719c5065959d0 (patch) | |
tree | cfe007cc4c3a8b817c32f65671f12e27266ddb82 /NEWS | |
parent | e2d514132d6197787cff6f6a4f9e2adf0b8ae65b (diff) | |
download | mongo-4b3a084a3039f3a3eecee39e3b0719c5065959d0.tar.gz |
Cut WiredTiger release 2.1.02.1.0
Diffstat (limited to 'NEWS')
-rw-r--r-- | NEWS | 43 |
1 files changed, 43 insertions, 0 deletions
@@ -1,3 +1,46 @@ +WiredTiger release 2.1.0, 2014-02-04 +------------------------------------ + +The WiredTiger 2.1.0 release contains new features, performance enhancements +and bug fixes. Significant changes include: + +The WT_ITEM structure was changed so that the size field is a size_t rather +than a uint32_t. See upgrading documentation for details. + +A change to the compress_raw interface around repeating the call with more +records. See upgrading documentation for details. + +In LSM trees, the memory_page_max setting is ignored. The effective setting +is double the chunk size. [#861][#859] + +Add support for zlib compression. [#855] [#865] + +Various enhancements to how WiredTiger generates tree structures in memory to +help maintain consistent performance as table size grows. [#851] + +Add support for Levyx Inc Helium as an external data source in WiredTiger +[#849][#850] + +Improve insert performance when a table contains many identical overflow +items. + +Various performance enhancements to btree searches. [#838][#839][#840] + +Add support for newer versions of autoconf up to 1.14. [#599][#841] + +Improve multi-threaded throughput of durable log writes, including changing +the default wiredtiger_open transaction_sync configuration from dsync to +fsync, see the upgrading documentation for further information. [#831][#832] + +In the Python and Java APIs, automatically close handles to prevent invalid +accesses by applications. [#649][#800][#830] + +Various enhancements to the LSM merge algorithm, including improvements to how +files are selected for merging, and throttling based on whether merges are +keeping up (to limit write amplification). Made the minimum number of chunks +chosen to merge configurable. [#817][#819][#822] + + WiredTiger release 2.0.1, 2013-12-12 ------------------------------------ |