Apache Jackrabbit Oak 1.5.6 发布了，Apache Jackrabbit 是由 Apache Foundation 提供的 JSR-170 的开放源码实现。 本次发布主要改进记录如下： Technical task [OAK-4200] - [BlobGC] Improve collection times of blobs available [OAK-4477] - RDBDatasourceFactory should use pool config similar to sling datasource defaults [OAK-4539] - Calculate children cache entry on commit [OAK-4554] - RDBBlobStoreTest should use RDBDatasourceWrapper [OAK-4557] - RDBPreparedStatementWrapper: do not hide implementation bugs [OAK-4559] - RDB*Store: failures with Tomcat JDBC pool's StatementCache interceptor [OAK-4562] - BasicDocumentStore max id test might return misleading results Bug [OAK-4518] - ConcurrentAddReferenceTest fails occasionally [OAK-4532] - race-condition in commit-rate-limiter [OAK-4544] - Fix failing test DataStoreCheckTest.testMissingOpParams() [OAK-4548] - SegmentDataStoreBlobGCIT failures [OAK-4552] - Checkpoints.getOldestRevisionToKeep() returns newest valid revision [OAK-4565] - S3Backend fails to upload large metadata records [OAK-4568] - JournalEntry.applyTo() creates complete change tree in memory [OAK-4571] - consolidated listener stats confuses cluster-external/local flags [OAK-4572] - Overflow to disk threshold too high Improvement [OAK-4512] - Detect and log commits to the read-only stores [OAK-4528] - diff calculation in DocumentNodeStore should try to re-use journal info on diff cache miss [OAK-4533] - make DELAY_THRESHOLD & MAX_DELAY of ChangeProcessor configurable [OAK-4534] - add trace logging to CommitRateLimiter [OAK-4540] - Cache update blocks new commits [OAK-4542] - PerfLogger should also allow a threshold to log at INFO [OAK-4545] - Configurable maxBackOffMillis [OAK-4553] - Retain journal entries for valid checkpoints [OAK-4556] - Track branch on newBranchCommit() [OAK-4563] - Specify thread pool name which should be used by Async Indexing task [OAK-4564] - Use Lucene index to look for long-named nodes in JCR2 upgrade [OAK-4567] - Define oak:Resource nodetype as non referenceable alternative to nt:resource [OAK-4569] - Clean-up the oak-upgrade dependencies [OAK-4573] - S3 fetching record leads to multiple calls and background download [OAK-4574] - [BlobGC] Remove adding of paths in file maintained for blob references [OAK-4578] - Clarify weight related methods/parameters/arguments of the LIRS cache Task [OAK-3211] - Document External Identity Management [OAK-4551] - Update Oak to Jackrabbit 2.13.1 下载地址：http://jackrabbit.apache.org/downloads.html Apache Jackrabbit Oak 1.5.6 发布下载地址
