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lines changed Original file line number Diff line number Diff line change @@ -26,6 +26,7 @@ use std::fmt::Debug;
2626pub use data_version:: DataVersion ;
2727use databend_common_meta_sled_store:: sled;
2828use databend_common_meta_sled_store:: SledTree ;
29+ use databend_common_meta_stoerr:: MetaBytesError ;
2930use databend_common_meta_stoerr:: MetaStorageError ;
3031pub use header:: Header ;
3132use log:: info;
@@ -82,7 +83,18 @@ impl OnDisk {
8283 let tree = SledTree :: open ( db, & tree_name, config. is_sync ( ) ) ?;
8384 let ks = tree. key_space :: < DataHeader > ( ) ;
8485
85- let header = ks. get ( & Self :: KEY_HEADER . to_string ( ) ) ?;
86+ let header = ks. get ( & Self :: KEY_HEADER . to_string ( ) ) . map_err ( |e| {
87+ MetaStorageError :: BytesError ( MetaBytesError {
88+ source : AnyError :: error ( format ! (
89+ "Unable to read meta-service data version from disk; \
90+ Possible reasons: opening future version meta-service with old version binary, \
91+ or the on-disk data is damaged. \
92+ error: {}",
93+ e
94+ ) )
95+ . add_context ( || "open on-disk data" ) ,
96+ } )
97+ } ) ?;
8698 info ! ( "Loaded header: {:?}" , header) ;
8799
88100 if let Some ( v) = header {
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