Doug, Yes, you are right. I made it target for 0.14.
Hairong -----Original Message----- From: Doug Cutting [mailto:[EMAIL PROTECTED] Sent: Friday, May 11, 2007 11:00 AM To: [email protected] Subject: Re: [jira] Updated: (HADOOP-1124) ChecksumFileSystem does not handle ChecksumError correctly Shouldn't this be targeted for 0.14? Doug Hairong Kuang (JIRA) wrote: > [ > https://issues.apache.org/jira/browse/HADOOP-1124?page=com.atlassian.j > ira.plugin.system.issuetabpanels:all-tabpanel ] > > Hairong Kuang updated HADOOP-1124: > ---------------------------------- > > Priority: Major (was: Blocker) > >> ChecksumFileSystem does not handle ChecksumError correctly >> ---------------------------------------------------------- >> >> Key: HADOOP-1124 >> URL: https://issues.apache.org/jira/browse/HADOOP-1124 >> Project: Hadoop >> Issue Type: Bug >> Components: fs >> Affects Versions: 0.12.0 >> Reporter: Hairong Kuang >> Assigned To: Hairong Kuang >> Fix For: 0.13.0 >> >> >> When handle ChecksumError, the checksumed file system tries to recover by rereading from a different replica. >> I have three comments: >> 1. One bug in the code is that when retrying, the object that computes checksum does not get restored to the old state. >> 2. The code also assumes that the first byte read and the byte being read when ChecksumError occurs are in the same block. >> 3. It would be more efficient if we roll back to the first byte in the chunk that's being checksumed instead of rolling back to the first byte that was read. >
