Bug 1534452
| Summary: | Reading over than the file size on dispersed volume | ||
|---|---|---|---|
| Product: | [Community] GlusterFS | Reporter: | jenny <ibestpro> |
| Component: | disperse | Assignee: | bugs <bugs> |
| Status: | CLOSED DUPLICATE | QA Contact: | |
| Severity: | urgent | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | mainline | CC: | bugs, dwojslaw, vbellur |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-11-20 05:09:15 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Release 3.12 has been EOLd and this bug was still found to be in the NEW state, hence moving the version to mainline, to triage the same and take appropriate actions. *** This bug has been marked as a duplicate of bug 1534453 *** |
Description of problem: Reading over than the file size on dispersed volume Version-Release number of selected component (if applicable): 3.12.1-2 How reproducible: ------------------------------------------------------ Volume Name: TEST_VOL Type: Disperse Volume ID: be52b68d-ae83-46e3-9527-0e536b867bcc Status: Started Snapshot Count: 0 Number of Bricks: 1 x (6 + 3) = 9 Transport-type: tcp Bricks: Brick1: server1:/data/brick1 Brick2: server2:/data/brick1 Brick3: server3:/data/brick1 Brick4: server1:/data/brick2 Brick5: server2:/data/brick2 Brick6: server3:/data/brick2 Brick7: server1:/data/brick3 Brick8: server2:/data/brick3 Brick9: server3:/data/brick3 Options Reconfigured: network.ping-timeout: 10 performance.write-behind: on features.quota-deem-statfs: on features.inode-quota: on features.quota: on transport.address-family: inet nfs.disable: on ------------------------------------------------------ Steps to Reproduce: 1. generating the temporary files like below command. fallocate -l 130394 test1 fallocate -l 667417658 test2 fallocate -l 2493251482 test3 2. reading the files to EOF like below sources -------------------------------------------------------------- glfs_fd_t* fd = glfs_open (gluster_fs, "/test1", O_RDWR); size_t retr = 0; off_t offset = 0; unsigned char buf[128*1024] = {0,}; while ((retr = glfs_pread(fd, buf, sizeof(buf), offset, 0)) > 0) { printf("retr : %ld, offset : %ld(%d) \n", retr, offset, errno); offset += retr; } printf("offset : %d\n", offset); ----------------------------------------------------------------------------------------------------------------- Actual results: print debug retr : 130394, offset : 42(0) retr : 1024, offset : 130436(0) retr : 636, offset : 131460(0) offset : 132096(0) Expected results: The reading size (total offset) has to be the same with original file size offset : 130394 Additional info: Why the glfs_pread(or glfs_read) function reads until over than the file size ? This is fine on dispersed (4+2) and (8+1) volume but it is occurred on (6+3) or (6+4) or (7+2) disperse volume. I want to know exact cause. Thank you.