[ https://issues.apache.org/jira/browse/HIVE-20247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sergey Shelukhin updated HIVE-20247: ------------------------------------ Attachment: HIVE-20247.01.patch > cleanup issues in LLAP IO after cache OOM > ----------------------------------------- > > Key: HIVE-20247 > URL: https://issues.apache.org/jira/browse/HIVE-20247 > Project: Hive > Issue Type: Bug > Reporter: Prasanth Jayachandran > Assignee: Sergey Shelukhin > Priority: Major > Attachments: HIVE-20247.01.patch, HIVE-20247.patch > > > LLAP IO creates unallocated buffer objects inside the read-related data > structures, then allocates them in bulk, then decompresses into them and > increfs them. > If allocate or decompress steps fail, it's hard for the higher-level cleanup > to tell what the state of the buffers in the read-related structures is - > they may be unallocated, allocated but not incref-ed, or incref-ed. > Some cleanup paths only deal with the latter case, resulting in bugs. > Moreover, currently allocator returns partial results on such error. The > allocation should be all-or-nothing. > This only happens on one path, others allocate and use buffers in a single > place. -- This message was sent by Atlassian JIRA (v7.6.3#76005)