When using an OSS plug-in using the default OFS implementation, the OFS disables asynchronous reads if 'isCompressed' is not implemented by the OSS. I suggest the default behaviour of the OFS to assume not compressed if the detection is not implemented (-EISDIR response by XrdOssDF). ``` XrdOfs.cc: // Set compression values and activate the handle // if (oP.fP->isCompressed()) {oP.hP->isCompressed = 1; dorawio = (open_mode & SFS_O_RAWIO ? 1 : 0); } ``` ``` XrdOss.hh: virtual int isCompressed(char *cxidp=0) {(void)cxidp; return -EISDIR;} ``` Is there actually anything implemented with compression? --- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/219 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1