Add read-sb command
parent
6fde9950d6
commit
7dc6f10ea1
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@ -119,6 +119,7 @@ struct disk_tool_t
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int resize_write_new_meta();
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int udev_import(std::string device);
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int read_sb(std::string device);
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int write_sb(std::string device);
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int exec_osd(std::string device);
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int systemd_start_stop_osds(std::vector<std::string> cmd, std::vector<std::string> devices);
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@ -228,6 +229,15 @@ int main(int argc, char *argv[])
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}
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return self.udev_import(cmd[1]);
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}
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else if (!strcmp(cmd[0], "read-sb"))
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{
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if (cmd.size() != 2)
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{
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fprintf(stderr, "Exactly 1 device path argument is required\n");
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return 1;
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}
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return self.read_sb(cmd[1]);
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}
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else if (!strcmp(cmd[0], "write-sb"))
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{
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if (cmd.size() != 2)
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@ -264,15 +274,6 @@ int main(int argc, char *argv[])
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"(c) Vitaliy Filippov, 2022+ (VNPL-1.1)\n"
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"\n"
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"USAGE:\n"
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"%s dump-journal [--all] [--json] <journal_file> <journal_block_size> <offset> <size>\n"
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" Dump journal in human-readable or JSON (if --json is specified) format.\n"
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" Without --all, only actual part of the journal is dumped.\n"
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" With --all, the whole journal area is scanned for journal entries,\n"
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" some of which may be outdated.\n"
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"\n"
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"%s dump-meta <meta_file> <meta_block_size> <offset> <size>\n"
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" Dump metadata in JSON format.\n"
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"\n"
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"%s resize <ALL_OSD_PARAMETERS> <NEW_PARAMETERS> [--iodepth 32]\n"
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" Resize data area and/or rewrite/move journal and metadata\n"
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" ALL_OSD_PARAMETERS must include all (at least all disk-related)\n"
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@ -289,21 +290,17 @@ int main(int argc, char *argv[])
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" If any of the new layout parameter options are not specified, old values\n"
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" will be used.\n"
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"\n"
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"%s simple-offsets <device>\n"
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" Calculate offsets for simple&stupid (no superblock) OSD deployment. Options:\n"
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" --object_size 128k Set blockstore block size\n"
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" --bitmap_granularity 4k Set bitmap granularity\n"
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" --journal_size 16M Set journal size\n"
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" --device_block_size 4k Set device block size\n"
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" --journal_offset 0 Set journal offset\n"
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" --device_size 0 Set device size\n"
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" --format text Result format: json, options, env, or text\n"
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"\n"
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"%s start|stop|restart|enable|disable [--now] <device> [device2 device3 ...]\n"
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" Manipulate Vitastor OSDs using systemd by their device paths.\n"
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" Commands are passed to systemctl with vitastor-osd@<num> units as arguments.\n"
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" When --now is added to enable/disable, OSDs are also immediately started/stopped.\n"
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"\n"
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"%s read-sb <device>\n"
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" Try to read Vitastor OSD superblock from <device> and print it in JSON format.\n"
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"\n"
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"%s write-sb <device>\n"
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" Read JSON from STDIN and write it into Vitastor OSD superblock on <device>.\n"
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"\n"
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"%s udev <device>\n"
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" Try to read Vitastor OSD superblock from <device> and print variables for udev.\n"
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"\n"
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@ -315,8 +312,27 @@ int main(int argc, char *argv[])
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" Read Vitastor OSD superblock from <device> and perform pre-start checks for the OSD.\n"
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" For now, this only checks that device cache is in write-through mode if fsync is disabled.\n"
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" Intended for use from startup scripts (i.e. from systemd units).\n"
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"\n"
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"%s dump-journal [--all] [--json] <journal_file> <journal_block_size> <offset> <size>\n"
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" Dump journal in human-readable or JSON (if --json is specified) format.\n"
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" Without --all, only actual part of the journal is dumped.\n"
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" With --all, the whole journal area is scanned for journal entries,\n"
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" some of which may be outdated.\n"
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"\n"
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"%s dump-meta <meta_file> <meta_block_size> <offset> <size>\n"
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" Dump metadata in JSON format.\n"
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"\n"
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"%s simple-offsets <device>\n"
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" Calculate offsets for old simple&stupid (no superblock) OSD deployment. Options:\n"
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" --object_size 128k Set blockstore block size\n"
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" --bitmap_granularity 4k Set bitmap granularity\n"
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" --journal_size 16M Set journal size\n"
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" --device_block_size 4k Set device block size\n"
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" --journal_offset 0 Set journal offset\n"
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" --device_size 0 Set device size\n"
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" --format text Result format: json, options, env, or text\n"
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,
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argv[0], argv[0], argv[0], argv[0], argv[0], argv[0], argv[0], argv[0]
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argv[0], argv[0], argv[0], argv[0], argv[0], argv[0], argv[0], argv[0], argv[0], argv[0]
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);
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}
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return 0;
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@ -1291,6 +1307,17 @@ int disk_tool_t::udev_import(std::string device)
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return 0;
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}
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int disk_tool_t::read_sb(std::string device)
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{
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json11::Json sb = read_osd_superblock(device);
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if (sb.is_null())
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{
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return 1;
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}
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printf("%s\n", sb["params"].dump().c_str());
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return 0;
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}
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int disk_tool_t::write_sb(std::string device)
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{
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std::string input;
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