[HBASE-13652] Case-insensitivity of file system affects table creation

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Abandoned
• Affects Version/s: 1.0.0
• Component/s: shell
• Labels: beginner

Environment

HBase standalone mode on Mac OS X.

• Assignee: Unassigned
• Reporter: Lars George
• Created: 08/May/15 22:50
• Updated: 24/Jun/22 18:49
• Resolved: 12/Jun/22 00:06

Description

I noticed this on my Mac OS machine:

hbase(main):003:0> list
TABLE                                                                                                                                                          
0 row(s) in 0.0260 seconds

=> []
hbase(main):004:0> create 'TestTable', 'info'
0 row(s) in 0.2830 seconds

=> Hbase::Table - TestTable
hbase(main):005:0> create 'testtable', 'colfam1'
0 row(s) in 0.1750 seconds

=> Hbase::Table - testtable
hbase(main):006:0> list
TABLE                                                                                                                                                          
TestTable                                                                                                                                                      
TestTable                                                                                                                                                      
2 row(s) in 0.0170 seconds

=> ["TestTable", "TestTable"]
hbase(main):007:0> status 'detailed'
version 1.0.0
0 regionsInTransition
master coprocessors: []
1 live servers
    de1-app-mba-1.internal.larsgeorge.com:58824 1431124680152
        requestsPerSecond=0.0, numberOfOnlineRegions=4, usedHeapMB=47, maxHeapMB=4062, numberOfStores=4, numberOfStorefiles=0, storefileUncompressedSizeMB=0, storefileSizeMB=0, memstoreSizeMB=0, storefileIndexSizeMB=0, readRequestsCount=16, writeRequestsCount=8, rootIndexSizeKB=0, totalStaticIndexSizeKB=0, totalStaticBloomSizeKB=0, totalCompactingKVs=0, currentCompactedKVs=0, compactionProgressPct=NaN, coprocessors=[]
        "TestTable,,1431124762491.cb30b003b192aa1d429e5a8e908a2f7d."
            numberOfStores=1, numberOfStorefiles=0, storefileUncompressedSizeMB=0, storefileSizeMB=0, memstoreSizeMB=0, storefileIndexSizeMB=0, readRequestsCount=0, writeRequestsCount=0, rootIndexSizeKB=0, totalStaticIndexSizeKB=0, totalStaticBloomSizeKB=0, totalCompactingKVs=0, currentCompactedKVs=0, compactionProgressPct=NaN, completeSequenceId=-1, dataLocality=0.0
        "hbase:meta,,1"
            numberOfStores=1, numberOfStorefiles=0, storefileUncompressedSizeMB=0, storefileSizeMB=0, memstoreSizeMB=0, storefileIndexSizeMB=0, readRequestsCount=10, writeRequestsCount=6, rootIndexSizeKB=0, totalStaticIndexSizeKB=0, totalStaticBloomSizeKB=0, totalCompactingKVs=0, currentCompactedKVs=0, compactionProgressPct=NaN, completeSequenceId=-1, dataLocality=0.0
        "hbase:namespace,,1431124686536.42728f3a3411b0d8ff21c7a2622d9378."
            numberOfStores=1, numberOfStorefiles=0, storefileUncompressedSizeMB=0, storefileSizeMB=0, memstoreSizeMB=0, storefileIndexSizeMB=0, readRequestsCount=6, writeRequestsCount=2, rootIndexSizeKB=0, totalStaticIndexSizeKB=0, totalStaticBloomSizeKB=0, totalCompactingKVs=0, currentCompactedKVs=0, compactionProgressPct=NaN, completeSequenceId=-1, dataLocality=0.0
        "testtable,,1431124773352.8d461d5069d1c88bc3b26562ab30e333."
            numberOfStores=1, numberOfStorefiles=0, storefileUncompressedSizeMB=0, storefileSizeMB=0, memstoreSizeMB=0, storefileIndexSizeMB=0, readRequestsCount=0, writeRequestsCount=0, rootIndexSizeKB=0, totalStaticIndexSizeKB=0, totalStaticBloomSizeKB=0, totalCompactingKVs=0, currentCompactedKVs=0, compactionProgressPct=NaN, completeSequenceId=-1, dataLocality=0.0
0 dead servers

and on the file system there is

larsgeorge:~$ ls -l hbase/data/default/
total 0
drwxr-xr-x  7 larsgeorge  staff  238 May  8 15:39 TestTable

This should not happen on a case sensitive file system (I presume), so is of marginal importance. But a simple extra check during directory creation could fix this.