diff options
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 43 |
1 files changed, 43 insertions, 0 deletions
@@ -1,3 +1,46 @@ +WiredTiger release 1.3.6, 2012-11-06 +------------------------------------ + +This is a bugfix and performance tuning release. The changes are as follows: + +* Rename the WiredTiger installed modules to libwiredtiger_XXX. Don't install + the nop and reverse collator modules. + +* Replace test/format's bzip configuration string with compression, which can + take one of four arguments (none, bzip, ext, snappy), change format to run + snappy compression if the library is available. + +* Rename the builtin block compressor names from "bzip2_compress" to "bzip2", + and from "snappy_compress" to "snappy". + +* Support multiple LSM merge threads with the "lsm_merge_threads" config key. + Use IDs rather than array index to mark the start chunk in a merge, in case + we race with another thread. + +* Cache the hash values used for Bloom filter lookups, rather than hashing for + each Bloom filter in an LSM tree. + +* Only switch trees in an LSM cursor if the primary chunk is on disk. + +* Add a per-btree cache priority, currently only used to make it more likely + for Bloom filter pages to stay in cache. + +* Only evict pages with read generations in the bottom quarter of the range we + see. Fix a 32-bit wrapping bug in assigning read generations. + +* For update-only LSM cursors, only open a cursor in the primary chunk. + +* LSM: Report errors from the checkpoint thread. + +* LSM: only save a Bloom URI in the metadata after it is successfully created. + +* LSM: Create missing Bloom filters when reading from an LSM tree if + "lsm_bloom_newest"is set. + +* LSM: Include all of the chosen chunks in a merge. Only pin the current chunk + in an LSM cursor if it is writeable. + + WiredTiger release 1.3.5, 2012-10-26 ------------------------------------ |